Editing Big Ten Conference (section)

===Extra-conference rivalries===
Four Big Ten teams-Purdue, Northwestern, Michigan State and Michigan-had rivalries in football with [[Notre Dame Fighting Irish football rivalries|Notre Dame]]. After the University of Southern California with 35 wins (including a vacated 2005 win), the Michigan State Spartans have the most wins against the Irish, with 28. The Purdue Boilermakers follow with 26, and Michigan ranks fourth all-time with 24. [[Northwestern Wildcats football|Northwestern]] and [[Notre Dame Fighting Irish football|Notre Dame]] had a yearly contest, with the winner taking home a [[Shillelagh (club)|shillelagh]], much like the winner of the [[USC Trojans football|USC]]–Notre Dame and Purdue–Notre Dame contests now receive. The Northwestern–Notre Dame shillelagh was largely forgotten by the early 1960s and is now solely an element of college football's storied past.<ref>{{cite web|url=http://hailtopurple.com/features/trophyhistory.html |title=History of NU's Rivalry Trophies |publisher=HailToPurple.com |access-date=November 7, 2012}}</ref>

Penn State has a longstanding [[Pitt–Penn State rivalry|rivalry]] with [[Pittsburgh Panthers football|Pittsburgh]] of the [[Atlantic Coast Conference|ACC]], but the two schools did not meet from 2000 until renewing the rivalry with an alternating home-and-home series from 2016 to 2019. Penn State also has long histories with independent Notre Dame; [[Temple Owls football|Temple]] of [[American Athletic Conference|The American]]; [[Syracuse Orange football|Syracuse]], and [[Boston College Eagles football|Boston College]] of the ACC; and [[West Virginia Mountaineers football|West Virginia]], of the [[Big 12 Conference]]. Additionally, Penn State maintains strong intrastate rivalries with [[Patriot League]] universities [[Bucknell Bison|Bucknell]] in men's basketball and men's lacrosse, and [[Lehigh Mountain Hawks|Lehigh]] in wrestling. Most of these rivalries were cultivated while Penn State operated independent of conference affiliation; the constraints of playing a full conference schedule, especially in football, have reduced the number of meetings between Penn State and its non-Big Ten rivals.

Iowa has an in-state rivalry with [[Iowa State Cyclones|Iowa State]] of the Big 12, with the winner getting the [[Cy-Hawk Trophy]] in football. Iowa and Iowa State also compete annually in the [[Hy-Vee Cy-Hawk Series|Cy-Hawk Series]] sponsored by Hy-Vee (as of 2011 this series is now sponsored by The Iowa Corngrowers Association), the competition includes all head-to-head regular season competitions in all sports. Iowa also holds rivalries in basketball with the state's other two Division I programs, [[Drake Bulldogs|Drake]] and [[Northern Iowa Panthers|Northern Iowa]].

Indiana has an out-of-conference rivalry with [[Kentucky Wildcats|Kentucky]] of the [[Southeastern Conference|SEC]] (see [[Indiana–Kentucky rivalry]]). While the two schools played in football for many years, the rivalry was rooted in their decades of national success in men's basketball. The two no longer play one another in football, but their basketball rivalry continued until a dispute about game sites ended the series after 2011. In the last season of the rivalry (2011–12), the teams played twice. During the regular season, then-unranked [[2011–12 Indiana Hoosiers men's basketball team|Indiana]] defeated then-#1 ranked [[2011–12 Kentucky Wildcats men's basketball team|Kentucky]] 73–72 at Assembly Hall. The Wildcats avenged the loss in the NCAA tournament, defeating Indiana 102–90 in the South Regional final in [[Georgia Dome|Atlanta]] on their way to a national title. The teams next played in the 2016 NCAA tournament, with Indiana winning.

Illinois has a longstanding basketball rivalry with the SEC's [[Missouri Tigers men's basketball|Missouri Tigers]], with the two men's teams squaring off annually in the "[[Braggin' Rights]]" game. It has been held in [[St. Louis]] since 1980, first at the [[St. Louis Arena]] and since 1994 at the [[Enterprise Center]]. This rivalry has been carried over into football as "The Arch Rivalry" with games played at the [[The Dome at America's Center|Edward Jones Dome]] in St. Louis in 2002 and 2003 and four games in 2007 through 2010.[https://web.archive.org/web/20070309010901/http://www.stlouissports.org/pressbox/releases/missouriillinois82505.php]

Wisconsin has a long-standing in-state basketball rivalry with [[Marquette Golden Eagles men's basketball|Marquette]]. The series has intensified as of late with both teams having made the [[NCAA Division I Men's Basketball Championship|Final Four]] in recent years. The schools also played an annual football game before Marquette abandoned its football program in 1961. The school also has minor rivalries in basketball with the two other Division I members of the [[University of Wisconsin System]], which include the [[Milwaukee Panthers|University of Wisconsin–Milwaukee]] and [[Green Bay Phoenix|University of Wisconsin–Green Bay]].

Similarly, Nebraska has an in-state rivalry with another Big East school in [[Creighton Bluejays men's basketball|Creighton]], mostly in basketball and baseball.

Minnesota men's ice hockey has a prolific and fierce border rivalry with the University of North Dakota. The two teams played annually between 1948 and 2013 as members of the [[Western Collegiate Hockey Association]] prior to the inception of the Big Ten Conference. The rivalry resumed in 2016 in non-conference action.

Maryland has many rivalries outside of the conference, most notably [[Duke Blue Devils|Duke]], [[Virginia Cavaliers|Virginia]], [[West Virginia Mountaineers|West Virginia]], and [[Navy Midshipmen|Navy]]. Maryland left the Duke and Virginia rivalries behind in the ACC when it joined the Big Ten.

In the early days of the Big Ten, the [[Chicago–Michigan football rivalry|Chicago–Michigan]] game was played on [[Thanksgiving (United States)|Thanksgiving]], usually with conference championship implications. It was considered one of the first major rivalries of the conference.