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1978
May 3 - Representatives from Bradley, Dayton, DePaul, Detroit, Illinois State, Loyola, Air Force and Xavier attend a meeting hosted by DePaul in Chicago. While all in attendance agree a conference is needed, no movement is made to form one.

1979
Jan. 8 - An informal meeting for the formation of a conference is held during the 73rd NCAA Convention in San Francisco. Representatives from Butler, Detroit, Evansville, Oral Roberts, DePaul and Xavier attend. Observers from Marquette and Creighton also are present. 

March 31 and May 23 - Representatives from the six charter institutions meet at Chicago's O'Hare Airport to further discuss formation of a conference, consisting primarily of basketball institutions. Detroit sends a representative to the May 23 meeting. 

June 10 - The six charter members meet at St. Louis' Lambert Field and agree in principle that an athletic conference is formed. 

June 16 - Midwestern City Conference officially is formed, with Butler, Evansville, Loyola, Oklahoma City, Oral Roberts and Xavier becoming charter members. 

June 25 - Representatives hold their first formal meeting during the NACDA convention in Hollywood, Fla. James J. McCafferty of Xavier is named commissioner; Irv Brown is named supervisor of officials. 

Oct. 11 - A conference meeting is held in Evansville to outline the first year of operation. Championships are announced for basketball, indoor track, tennis, golf and cross country.

1980 
May 7 - Detroit announces plans to join the MCC, effective July 1. 

May 11 - Oral Roberts wins four team titles to claim the first McCafferty Trophy, signifying the best overall performance in conference championships. 

Sept. 1 - Cecil N. Coleman, former athletics director at the University of Illinois, is named the second MCC commissioner. 

Sept. 8 - Coleman establishes the league's headquarters in Champaign, Ill. Dale Raterman is the MCC's first information director.

1981
June 4 - Xavier basketball forward Gary Massa is named the first recipient of the MCC Medal of Honor. The award is presented to the MCC's most outstanding student-athlete, based on academics, athletic achievement and extracurricular activities. 

Aug. 10-11 - NCAA Executive Committee approves automatic qualification for the MCC to the NCAA Division I Men's Basketball Championship. 

Dec. 18 - Saint Louis announces plans to leave the Metro Conference to join the MCC, effective July 1.

1982
Oct. 11 - Notre Dame announces it will join the MCC as an associate member, competing in every conference sport except basketball, effective immediately.

1983
July 1 - MCC opens its first full-time office in Champaign, Ill. Ken Lee is named the first full-time director of media and promotional relations.

1984
Feb. 12 - The NCAA announces the MCC receives automatic qualification to the NCAA Division I Baseball Championship. 

Sept. 5 - James W. Shaffer, an NCAA staff member for nearly nine years, is named the MCC's first full-time commissioner. 

Sept. 26 - The MCC moves its headquarters to Indianapolis. 

Dec. 10 - The MCC Medal of Honor is renamed in tribute to former commissioner Cecil N. Coleman.

1985
March 14-16 - Loyola is the first MCC representative to move beyond the first round of the NCAA Division I Men's Basketball Championship and advances to the "Sweet 16." 

April 4 - Oklahoma City withdraws from the MCC, effective at the end of the current year of competition. 

June 27 - Originally formed as the Midwestern City Conference, the MCC changes its name to the Midwestern Collegiate Conference and adopts a new logo. 

July 1 - The MCC adopts a revolving three-year membership commitment as part of its constitution. 

Aug. 13 - The MCC votes to bring women's athletics under conference jurisdiction in the 1986-87 academic year, making it mandatory for member schools to place men's and women's teams under league sponsorship. 

Oct. 17-18 - In the first joint meeting ever, MCC athletic directors and senior woman administrators establish policies to govern the addition of women's programs in the 1986-87 academic year.

1986
Jan. 27 - The MCC and ESPN announce plans to televise the 1986 MCC Basketball Championship final to a live national cable audience. 

April 15 - Patty A. Broderick is named the MCC's first supervisor of women's basketball officials. 

April 22 - Notre Dame elects to withdraw from the MCC at the end of the competition year after being required to place women's athletics under MCC jurisdiction. 

May 21 - Oral Roberts, the only institution to have won the award, clinches its seventh consecutive McCafferty Trophy as the league's all-sports champion.

July 11 - The City of Indianapolis lis, the MCC and Butler University are selected as co-hosts of the 1991 NCAA Final Four, to be played at the Hoosier Dome. In addition, the MCC and Butler are named to co-host the 1989 first and second rounds.

1987
March 12-14 - The MCC and Butler co-host the first and second rounds of the 1987 NCAA Division I Men's Basketball Championship at the Hoosier Dome. 

March 25 - Oral Roberts announces it will withdraw from the MCC, effective June 30, to pursue competition as an independent. 

April 21 - Evansville clinches the McCafferty Trophy, marking the first time in the MCC's eight-year history that an institution other than Oral Roberts won the award. 

June 23 - Dayton announces it will join the MCC, effective July 1. The Flyers' men's non-revenue sports begin conference play immediately, while the women's programs and men's basketball program begin play in 1988-89. 

June 24 - Saint Louis' Ted Mimlitz and Evansville's Debbie Bajovich are named recipients of the 1986-87 Coleman Medals of Honor. Bajovich's selection marks the first award presented to a female student-athlete. 

Aug. 5 - The MCC and Butler are named co-hosts for the first and second rounds of the 1990 NCAA Division I Men's Basketball Championship at the Hoosier Dome. 

Oct. 6 - Notre Dame announces it will rejoin the MCC. The men's non-revenue programs begin competition immediately. The school elects not to participate in men's basketball. The women's programs start conference play in 1988-89, with the exception of volleyball, which begins MCC play in 1990. 

Oct. 10 - MCC headquarters moves to the new Pan American Plaza Building, adjacent to the Hoosier Dome. 

Nov. 15 - Marquette and Saint Louis announce they will withdraw from the MCC, effective June 30, 1991. 

Nov. 6-8 - The MCC conducts its first men's soccer championship at the Indianapolis Soccer and Sports Center. Evansville wins the inaugural title over Saint Louis. Both teams earn at-large berths to the NCAA Division I Men's Soccer Championship. 

Nov. 9 - SNI Sports Network and the MCC announce the first agreement to televise every game of the 1988 MCC Basketball Championships via a seven-station network reaching each conference city.

1988
March 3 - Marquette announces that it will join the MCC, effective Sept. 1. The Warriors begin competition in some non-revenue sports immediately, while the remainder of the sports begin MCC play in 1989-90. 

May 19 - MCC members establish a new direction and set of goals tied to Long-Range Planning Objectives, aimed at continuing the conference's overall commitment to Division I athletics. This includes establishing soccer, volleyball, men's and women's basketball and baseball as target priority sports.

June 1 - Evansville's Andy Benes, a junior pitcher with the Aces' baseball program, is selected by the San Diego Padres as the first overall pick in the Major League Baseball amateur draft. 

Nov. 6 - Notre Dame upsets Saint Louis and Evansville to win the MCC soccer championship. All three teams earn at-large selections to the NCAA Division I Men's Soccer Championship.

1989
March 11 - The MCC conducts its first women's basketball championship, with Notre Dame defeating Loyola in the title game. The Irish participate in the women's NIT. 

March 12 - Evansville earns the MCC's first at-large bid to the NCAA Division I Men's Basketball Championship. 

March 27 - Saint Louis advances to the championship game of the National Invitation Tournament with a win over Michigan State. 

May 12 - Commissioner Shaffer resigns to become vice president of public affairs at Butler University. 

June 7 - The MCC is awarded automatic qualification to the NCAA Division I Men's Soccer Championship. 

June 30 - Daniel B. "Tucker" DiEdwardo, a member of the NCAA championships staff, is named the MCC's fourth commissioner. 

Aug. 14 - The MCC and Butler are named as co-hosts for the first and second rounds of the 1993 NCAA Division I Men's Basketball Championship and the 1997 Final Four.

1990
March 11 - Four men's basketball teams are selected for postseason tournaments, as Xavier and Dayton receive bids to the NCAA Tournament and Saint Louis and Marquette are invited to the NIT. 

March 15-16 - Dayton and Xavier both win first-round games in the NCAA Tournament, the first time two MCC teams have done so in the same year. 

March 16-18 - The MCC and Butler host the first and second rounds of the NCAA Division I Men's Basketball Tournament, setting NCAA attendance records. 

March 18 - Xavier downs Georgetown in a second-round game to advance to the Sweet 16. 

March 22 - Saint Louis advances to the NIT Final Four for a second consecutive season with a win over DePaul. 

July 27 - The MCC has five players selected in the two-round NBA Draft, including two first-round choices, Tyrone Hill and Anthony Bonner. 

Nov. 7 - ESPN televises the MCC Men's Soccer Championship. In a battle of two teams destined for the NCAA Tournament, Evansville edges past Saint Louis, 1-0. 

Nov. 15 - The MCC announces a men's basketball scheduling agreement with Notre Dame. The Irish agree to play at least one game per season against each MCC member (current membership) on a home-and-away basis. 

Nov. 15 - Marquette and Saint Louis announce they will withdraw from the MCC, effective June 30, 1991.

1991
March 30-April 1 - The MCC and Butler co-host the 1991 NCAA Final Four at the Hoosier Dome. Duke defeats UNLV and Kansas to win the national title. 

Aug. 13 - The NCAA announces the MCC is awarded automatic qualification to the NCAA Division I Women's Basketball Championship. 

June 5 - The MCC adds women's soccer as its 16th championship, beginning in 1991, and elevates the sport to target-priority status. 

Dec. 9 - The NCAA announces the MCC champion will automatically qualify to the NCAA Division I Baseball Championship after a two-year absence. 

Dec. 19 - Duquesne and La Salle universities announce they will join the MCC July 1, 1992, and begin full participation in the 1992-93 academic year.

1992
Jan. 31 - Commissioner DiEdwardo resigns to become executive director of the Indiana Sports Corporation. 

May 4 - The NCAA announces the MCC has earned automatic qualification to the NCAA Division I Women's Volleyball Championship for the first time in 1992. 

May 11 - Jonathan B. LeCrone, nine-year assistant commissioner at the Atlantic Coast Conference, is named the MCC's fifth commissioner. 

July 15 - MCC reaches agreement with the Creative Group regarding national regional televising of MCC men's basketball for 1992-93, 1993-94 and 1994-95. 

Dec. 8 - University of Dayton announces it will withdraw from the MCC, effective June 30, 1993.

1993
Jan. 20 - Duquesne announces it will withdraw from the MCC, effective June 30, 1993. 

March - Two men's basketball teams are selected to the NCAA Tournament. Xavier defeats New Orleans, 73-55, before falling to Indiana, 73-70, in the Hoosier Dome. 

July 8 - The NCAA announces the MCC and Butler will co-host the 2000 Final Four. 

Nov. 4 - Evansville announces it will withdraw from the MCC, effective June 30, 1994. 

Dec. 9 - In what is considered to be the single largest non-merger conference expansion, the MCC announces that Cleveland State, Illinois-Chicago, Northern Illinois, UW-Green Bay, UW-Milwaukee and Wright State will join the league, effective July 1, 1994. The announcement is made during a live satellite video press conference with the new and current member schools.

1994
March 16 - Xavier announces it will leave the MCC, effective June 30, 1995. 

July 11 - Notre Dame, an MCC member in all sports except men's basketball, announces it will leave the MCC, effective June 30, 1995. 

July 21 - To symbolize the start of a new era, the MCC unveils a new logo, the third in its history. 

Oct. 5 - The MCC announces a five-game regional television package for women's basketball, in conjunction with SportsChannel Chicago and Creative Sports, Inc.

1995
January 23 - La Salle announces that it will leave the MCC, effective June 30, 1995. 

March 17 - UW-Green Bay and Xavier compete in the first round of the NCAA Men's Basketball Championship, marking the ninth straight year, and the 12th in the last 14, in which two MCC men's basketball teams ompeted in postseason play. 

July 14 - The MCC announces a five-game basketball package with the ESPN network family, including the league's first-ever telecast on ESPN2, for the 1995-96 season. 

October 5 - The MCC announces a 16-game regional television package originating on SportsChannel Chicago. Included in the package is the league's first-ever live broadcast of its women's basketball championship game.

1996
February 21 - Audiovox Cellular Communications, Simply Wireless and the MCC agree to a two-year corporate sponsorship that includes title sponsorship of the MCC basketball championships. 

March 10 - The NCAA announces the fields for the men's and women's basketball championships. Northern Illinois earns the MCC's automatic men's berth, and UW-Green Bay wins an at-large bid, marking the 10th consecutive year that the MCC sends at least two teams to postseason men's competition. Butler earns the MCC's automatic women's bid and comes within four points of a first-round upset of second-seeded Iowa. 

March 13-15 - The MCC and Butler serve as co-hosts for a first-/second-round session of the NCAA Division I Men's Basketball Championship Southeast Region. Princeton, led by legendary coach Pete Carril in his last season, upsets UCLA in the first round. 

May 15 - Championships in three spring sports help Northern Illinois earn the McCafferty Trophy, becoming just the fourth institution in the award's 17 years to win it. 

June 20 - The MCC announces that it has joined with five other conferences to create the Conference Marketing Group, a consortium designed to develop collective sales and marketing opportunities for the leagues and their member institutions. 

August 8 - The MCC announces that it has reorganized the conference office, creating the Marketing Services Group, which handles communications, sales and marketing, and the Membership Services Group, which coordinates compliance, championships and conference administration.

1997
Feb. 28-March 5 - Butler men's basketball wins the MCC championship and heads to the NCAA tournament for the first time in 36 years. The Bulldogs lose to Cincinnati in the first round, 69-86. 

March 6-8 - Detroit women's basketball claims the MCC title and compete in the first round of the NCAA tournament. UDM loses to Kansas, 67-81.

March 29-31 - The MCC and Butler University serve as co-hosts for the 1997 NCAA Division I Men's Basketball Championship. The four teams included North Carolina, Arizona, Kentucky and Minnesota. Arizona upsets Kentucky in the final game. 

May 15 - Butler becomes the fifth institution to claim the McCafferty trophy.

1998
Feb. 27-March 3 - Butler wins the MCC Men's Basketball Championship in Green Bay and receives an automatic bid to the NCAA Tournament for the second consecutive year. 

March 8- The MCC sends three teams to the NCAA Men's Basketball Championship for the first time. Detroit and UIC receive at-large bids, joining Butler which had earlier earned an automatic bid. 

March 7-9- UW-Green Bay earns the automatic bid to the NCAA Women's Championship, defeating Butler at Hinkle Field House in the championship game. Butler accepts an invitation to the Women's NIT. 

March 11-14- UW-Green Bay falls to Illinois in the first round of the Women's NCAA Tournament; Butler defeats Bowling Green and advances to the second round of the Women's NIT. 

March 13- Detroit defeats St. John's in the first round of the NCAA Tournament, advances to face Purdue. 

May 18- Championships in six sports help Butler win its second consecutive McCafferty trophy. 

June 25- Butler and MCC are named co-hosts of the 2006 NCAA Men's Basketball Final Four.

1999
Feb. 27-March 2 - Detroit wins the Nokia MCC Men's Basketball Championship in Chicago and receives a bid to the NCAA Tournament for the second consecutive year. Butler accepts a NIT bid. 

March 4-6 - UW-Green Bay earns the automatic bid to the NCAA women's basketball championship, defeating Detroit in Cleveland. 

March 11-13 - The MCC and Butler serve as co-hosts for a first-/second-round session of the NCAA Division I Men's Basketball Championship South Region. Detroit defeats UCLA in the first round of the NCAA Tournament, but falls to eventual Final Four participant Ohio State in the second round. UW-Green Bay falls to UCLA in the first round of the Women's NCAA Tournament. 

March 18 - Butler's bid for a berth in the NIT Final Four comes to an end as Clemson defeats the Bulldogs. 

May 21- Championships in three sports help Butler win its third consecutive McCafferty trophy. 

November - Loyola defeats UW-Milwaukee to earn automatic bid to NCAA Volleyball tournament. UW-Milwaukee receives an at-large bid to the NCAA Volleyball Tournament.

2000 
March 17 -Eventual championship participant Florida defeats Butler in first round of NCAA Tournament 69-68 (OT). 

March 18 - Old Dominion defeats UW-Green Bay 94-85 in first round of Women's NCAA Tournament. 

April 1, 3 - The MCC and Butler co-host the Men's NCAA Final Four. Michigan State defeats Florida in the championship game. 

 May 25 - With three MCC championships, UIC becomes sixth school to win the McCafferty Trophy. 
November 19 - Loyola defeats Butler to earn second straight automatic bid to NCAA Volleyball tournament. UW-Milwaukee receives an at-large birth to the NCAA tournament one-day later, marking the second straight year the MCC sends two teams.

2001 
March 10 - UW-Milwaukee upsets top-seeded UW-Green Bay, 72-57, in the MCC Women's Basketball Championship game and earns its first bid to the NCAA Women's Basketball tournament. UW-Green Bay accepts invitation to play in WNIT. 

March 16-18 - #10-seed Butler jumps out to 33-point halftime lead against #7 Wake Forest in the first round of the NCAA Men's Basketball Tournament. Butler goes on to win its first tournament game in over 35 years. Butler would later lose to National Championship Runner-Up Arizona in the second round. 

March 27-29 - Detroit becomes just the second MCC school to make it to the Final Four of the Men's NIT in New York City. 

May 17 - Youngstown State announces that it will become the ninth institution and join the MCC effective July 1, 2001. Youngstown State will begin competing within the League beginning in the fall of 2001. 

June 4 - The MCC officially changes its name to Horizon League and introduces a new League logo. 

Novmeber 19 - The Horizon League lands Butler and UW-Milwaukee in the NCAA Men's Soccer Tournament, marking the first time since 1990 (fourth overall) that the League placed more than one team in the same year. Butler lost to Michigan State, 2-1. UW-Milwaukee fell in overtime to UMKC, 2-1.

2002 
March 10 - Three men's basketball teams earn post-season bids. UIC loses to Final Four participant Oklahoma, 71-63. Butler advanced to the NIT Quarterfinals before falling at Syracuse, 66-65 in overtime. Detroit loses at Dayton, 80-69 in the first round of the NIT. 

March 15 - 13th-seeded UW-Green Bay takes host Texas down to the wire in the NCAA Women's Basketball Tournament, falling 60-55. 

July 25 - The Horizon League announces a change in its men's basketball tournament format, switching from a single site to multiple sites for the first time since 1982. 

August 8 - The Horizon League becomes one of four leagues selected to participate in the inaugural ESPN Bracket Buster Saturday. with Detroit, UIC and UW-Milwaukee representing the League. 
August 8 - UW-Milwaukee defeats Oakland in the NCAA Men's Soccer Tournament, later to be defeated by Creighton in the second-round.

2003 
March 20 - UW-Milwaukee participates in its first NCAA Men's Basketball Tournament, losing to Notre Dame, 70-69, in Indianapolis. 

March 21 - Butler upsets Mississippi State, 47-46, in the first round of NCAA Men's Basketball Tournament. Two days later, the Bulldogs knocked off Louisville, 79-71, to advance to the 'Sweet 16', eventually losing to Oklahoma, 65-54 in the East Regional. 

March 16 - Wright State defeats Missouri in the NCAA Softball Tournament.

2004
Nov. 10 - Loyola wins first-ever women's soccer championship by defeating Detroit, 1-0. 

Nov. 23 - UW-Green Bay grabs the volleyball championship and advances to its first-ever NCAA Tournament by upending in-state rival UW-Milwaukee, 3-2, for the League title. 

Feb. 28 - Both Wright State Men's and Women's Swimming & Diving teams capture the Horizon League Championship in Chicago. 

May 16 - UIC captures its unprecedented sixth Horizon League softball championship. 

May 20-23 - After an opening-round loss to #10 Tennessee, UIC defeats Bowling Green, #4 Notre Dame and #10 Tennessee before falling to #22 Oregon State in the NCAA Softball regional semifinals.

2005 
Nov. 7 - The UW-Milwaukee men's soccer team claims its third Horizon League championship in as many years and defeats No. 20 San Francisco in the opening round of the NCAA Tournament. 

Nov. 14 - The Detroit women's soccer team takes home the Horizon League championship and goes on to down Michigan to advance to the second round of the NCAA Championship. 

Nov. 22 - The Butler men's cross-country team places fourth at the NCAA Championship. Head coach Joe Franklin, is named National Coach of the Year. 

March 17 - UW-Milwaukee upsets No. 19 Alabama in the first round of the NCAA Men's Basketball Tournament. The Panthers went on to defeat No. 7 Boston College and advance to the 'Sweet 16'. The Panthers concluded the season ranked 23rd in the ESPN/USA Today Coaches Poll. 

May 15 - UW-Green Bay captures its first-ever Horizon League softball championship after being picked last in the League's preseason coaches poll. The Phoenix went on to down No. 6 Oregon State in the first round of the NCAA Championship. 

June 10 - Butler's Victoria Mitchell claims the individual title in the 3000-meter steeplechase event at the NCAA Division I Outdoor Track and Field Championships. She be comes the Horizon League's first individual national champion since the League's founding in 1979. 

Nov. 18 - UW-Milwaukee defeats Bradley 2-0 in the first round of the NCAA men's soccer championship to become one of only seven teams with victories in each of the past four national summits. The UWM women also advance in NCAA tournament play, outlasting Purdue 0-0 on penalty kicks for their first NCAA triumph. 

Nov. 21 - Butler's men and women both compete at the NCAA Cross Country Championships, while Loyola's men qualify for the first time in program history. BU standout Victoria Mitchell gains All-America honors after finishing fourth in the women's event.

2006 
March 16 - UW-Milwaukee defeats sixth-seeded Oklahoma 82-74 in the first round of the NCAA men's basketball tournament. 

April 1 & 3 -- The Horizon League office and Butler co-host the NCAA Men's Final Four for the fourth time since 1991. Florida wins its first national championship, defeating UCLA in the title game. 

May 17 - Valparaiso University accepts an invitation to join the Horizon League effective with the 2006-07 academic year. 

Nov. 5 - Loyola wins both men's and women's soccer titles to advance to the NCAA Championships. UIC earns an at-large bid to the men's summit, with Milwaukee's women also gaining an at-large berth. 

Nov. 22-24 - Butler defeats Tennessee and Gonzaga at Madison Square Garden to win the NIT Season Tip-Off crown. The Bulldogs eventually become the League's first-ever Top 10 team, reaching No. 10 in the AP polls in early February.

2007 
March 6 - Wright State holds off Butler, 60-55, to win its first-ever League men's basketball title. BU receives an at-large bid to the Field of 65, giving the League multiple entries for the first time since 2003. 

March 17 - Butler reaches the Sweet 16 for the second time in five years, defeating Maryland in the second round of the NCAA Championship. The Bulldogs opened the tournament with a victory over Old Dominion. 

March 18 - Green Bay eliminates New Mexico in the first round of the NCAA Women's Basketball Championship. The Phoenix fall to top seed Connecticut two days later. 

April 1-3 - Cleveland State serves as co-host for the NCAA Women's Final Four. 

May 26 - UIC sweeps its way to the baseball championship, tying Butler for top honors in the McCafferty Trophy points race---the first tie in League history. 

Dec. 1 - UIC advances to the quarterfinals of the NCAA Men's Soccer Championship with a 1-0 victory at Creighton, earned a third straight victory over a seeded opponent on the road.

2008 
March 21 - Butler dominates South Alabama 81-61 in the first round of the NCAA Men's Basketball Championship. The Bulldogs set a League record with their 30th win of the season and were ranked in the top 20 since late November. 

March 28-30 - Detroit plays host to an NCAA Men's Basketball Regional at Ford Field, featuring crowds of more than 57,000 for each session. 

May 28 - Cleveland State earns its first McCafferty Trophy in school history on the strength of the Vikings' first League championships in volleyball, women's basketball and men's tennis and first regular-season title in softball. 

Nov. 25 - UIC advances to the men's soccer 'Sweet 16' by advancing past No. 4 Michigan State on penalty kicks.

2009
March 20 - Cleveland State, making its first NCAA Men's Basketball Championship appearance since 1986, runs past Wake Forest, 84-69, in the first round of the NCAA Men's Basketball Championship. 

March 27-29 - Butler and the Horizon League co-host an NCAA Men's Basketball Regional at Lucas Oil Stadium, which was the first NCAA basketball event in the new venue. 

May 27 - Milwaukee wins its fifth McCafferty Trophy in nine years. The Panthers won League championships in volleyball, women's soccer, men's and women's indoor track and women's indoor track.

 

2010
February 26 – Butler completes an undefeated run through the Horizon League men’s basketball schedule, beating Valparaiso, 74-69, to become the first team to go 18-0 in conference play.  The Bulldogs would go on to capture the Speedway Horizon League Tournament title and earn a No. 5 seed to the NCAA Tournament, eventually finishing the season with a Horizon League-record 33 victories.
 
March 15 – The 64-team field is announced for the NCAA Women’s Basketball Tournament, and for the first time, the Horizon League receives an at-large bid.  Green Bay is given a No. 12 seed in the tournament, joining League tournament champion Cleveland State in the field.  The Phoenix justify their spot, knocking off fifth-seeded Virginia, 69-67, in the opening round and drop a 60-56 heartbreaker to No. 4 Iowa State on the Cyclones’ home court.
 
April 3-5 – Buter and the Horizon League co-host the Final Four for the fifth time in 19 years.  This time, however, Butler becomes the first host to reach the Final Four, knocking off Kansas State, 63-56, to return to Lucas Oil Stadium.  The Bulldogs knock off Michigan State, 52-50, in the national semifinal, before falling a basket short in a 61-59 loss to Duke in the national title game.  The run to the national title game is best in Horizon League history by a team under the Horizon League banner.  Butler finishes the year ranked No. 2 in the polls.
 
May 31 – On the strength of three team titles, Butler captures its seventh McCafferty Trophy, equaling the most in Horizon League history.  The Bulldogs won League championships in men’s and women’s cross country, and men’s basketball.
 
October 1 – The Butler men’s soccer team becomes the last unbeaten, untied team in the nation.  The Bulldogs stretch their run to 12-0-0 before their first non-win of the season, a 0-0 draw against IUPUI on Oct. 20. Butler would go on to earn the No. 13 national seed in the NCAA Tournament.
 
November 21 – Butler captures the Horizon League volleyball championship, making the school the first since Notre Dame in 1993 as the only schools to win Horizon League regular season and/or tournament championships in all five fall sports in the same year.
 
2011
March 2 – Milwaukee’s Emily McClellan becomes the first female swimmer in Horizon League history and first-ever Panther to compete at the NCAA Championship meet. The freshman earned a place in the 100 breaststroke, finishing 35th in 1:01.85. She was 48th in the 200 breast at 2:15.30 and also placed 54th in the 200 IM, touching the wall in 2:03.14.
 
March 5 – Green Bay completes an 18-0 Horizon League women’s basketball campaign for the second time in three years. The Phoenix would go on to earn a No. 5 seed in the NCAA Tournament after knocking off Butler, 74-63, in the League championship.
 
March 13-14 - Four Horizon League men’s basketball programs earn postseason bids, equaling the previous high set in 1990. Winner of the Horizon League championship, Butler receives a No. 8 seed in the NCAA Tournament, while Cleveland State receives a No. 2 seed in the NIT. Milwaukee joins the Vikings in the NIT field, while Valparaiso accepts a bid to the CollegeInsider.com Tournament.  
 
March 19 – Butler returns to the Sweet 16 by the slimmest of margins, knocking off No. 1 Pitt, 71-70, in the third round. Matt Howard, who two days earlier lifted the Bulldogs to a 60-58 win over No. 9 Old Dominion with a layup at the buzzer, hits the game-winning free throw with less than a second remaining.
 
March 22 – Green Bay becomes the first women’s basketball team in Horizon league history to reach the Sweet 16, defeating No. 4 seed Michigan State, 65-56. Advancing to the Dallas Regional, the Phoenix give top-seeded Baylor a scare before utlimately falling, 86-76. Green Bay’s 34-2 mark sets new League records for wins and winning percentage in a season.
 
April 2-4 – Continuing its run through the NCAA Tournament, Butler becomes the first non-Power 6 school since UNLV in 1990-91 to reach consecutive Final Fours, rallying for a 74-71 overtime win over Florida in the Southeast Regional final. The Bulldogs handle VCU, 70-62, in the national semifinal before falling one win shy of the national championship for the second straight year, dropping a 53-41 contest to Connecticut. Butler finishes the year ranked No. 2 for the second year in a row.
 
April 3-5 – The Horizon League successfully co-hosts its second NCAA Women’s Final Four, this one at Conseco Fieldhouse. Texas A&M wins its first women’s basketball national title, knocking off Notre Dame in the championship.
 
June 1 – On the strength of six Horizon League postseason championships, Butler wins the James J. McCafferty Trophy as the Horizon League’s all-sports champion for the second straight year and the eighth time overall. For the Bulldogs, their eighth title snaps a tie with former League members Notre Dame and Oral Roberts.
 
June 23 -- Two Horizon League men's basketball players are chosen in the NBA Draft for the first time in League history. Cleveland State's Norris Cole is taken 28th by Chicago and traded to Miami; Shelvin Mack of Butler is tabbed in the 2nd round (34th overall) by Washington. 
 
2012
November 5 - Valparaiso earns its first Horizon League regular season championship, as the men's soccer program takes first place. The Crusaders would go on to collect four regular season titles on the year, adding men's basketball, baseball and softball.
 
March 6 - Detroit captures its first Horizon League men's basketball title since 1999, defeating Valparaiso. The Titans would earn a No. 15 seed to the NCAA Tournament, falling to eventual national runner-up Kansas in the second round.
 
March 11 - A record-setting five Horizon League teams are selected for men's basketball postseason play. Detroit represents the Horizon League in the NCAA Tournament, while Valparaiso and Cleveland State are chosen for the NIT field. Butler and Milwaukee each participate in the CBI.
 
May 2 - Butler announces it is departing the Horizon League and will join the Atlantic 10 conference, beginning with the 2013-14 year. 
 
May 27 - Valparaiso becomes the lone school in the country to win regular season and tournament titles in both softball and baseball, as the Crusaders earn automatic bids to the NCAA Tournament in both sports. Valpo's softball tournament win sends the Crusaders to their first NCAA Tournament under the Horizon League banner.
 
May 29 - Butler announces its intention to leave the Horizon League, immediately, to begin competition in the Atlantic 10.