The "Border War" began in 1891 with 120 meetings until 2011, making it the second-most played rivalry in college football history. The series is almost even with Missouri holding a 57–54–9 lead. There were some epic battles before the Tigers joined the SEC in 2011. Mizzou won a top-5 showdown in 2007 for a spot in the Big 12 Championship Game.
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Texas A&M vs. Baylor - Last played: 2011
The "Battle of the Brazos" wasn't much of a rivalry during Baylor and Texas A&M's days in the Big 12. The Bears were the conference's annual punching bag with just two winnings seasons from 1996-2011, and the Aggies weren't much better. But Baylor has become a national title contender since, and Texas A&M has put itself back on the map in the SEC. It would have been a fun matchup between two of the most exciting offenses in college football.
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Nebraska vs. Colorado - Last played: 2010
Nebraska dominated this old Big 8/Big 12 rivalry with a 49-18-2 series lead, but Colorado was always a threat to knock off the Huskers. It was a battle of ranked teams in every meeting from 1988-96. One of the most shocking upsets came in 2001 when the Buffaloes routed the No. 2 Huskers 62-36 for the Big 12 North title. Both schools have left the conference since. Nebraska went to the Big Ten and Colorado to the Pac-12 in 2011. A home-and-home series is scheduled for 2018-19.
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Texas Tech vs. Texas A&M - Last played: 2011
Texas vs. Texas A&M always got the spotlight in the Lone Star State, but the Aggies vs. Red Raiders was as heated rivlary as well. There were many wild games and some nasty battles between fans through the years. One of the most memorable came in 2001 when fights broke out in the stands after Tech students carried the goal post acoss the field following a 12-0 upset of the Aggies. There is no scheduled meeting since Texas A&M left for the SEC in 2012.
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Notre Dame vs. Michigan - Last played: 2014
Notre Dame ended this rivalry last year with a 31-0 blowout, the most lopsided win in series history. But there were many classics between the Wolverines and Fighting Irish beginning in 1887. Notre Dame and Michigan ranked No. 1 and No. 3, respectively, in all time wins. Despite losing the final scheduled meeting, the Wolverines hold a 24-17-1 series lead.
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West Virginia vs. Virginia Tech - Last played: 2005
West Virginia and Virginia Tech had one of college football's most intense rivalries. These former Big East foes played nearly every year from 1952-2005. Arguably the most memorable meeting came in 2003 before the Hokies left for the ACC when unranked West Virginia upset No. 3 Virgina Tech 28-7. The Hokies returned the favor the following year with a 19-13 upset of the No. 6 Mountaineers. A home-and-home series is scheduled for 2021-22.
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Texas vs. Arkansas - Last played: 2014
Texas and Arkansas get together every now and then, but this once great Southwest Conference rivalry died when the Razorbacks left for the SEC in 1991. Legendary Texas coach Darrell Royal built the program into what it is today in the 1960s and 70s. His top-ranked Longhorns beat Frank Broyles' No. 2 Hogs in the "Game of the Century" for the national title in 1969. The Longhorns suffered an embarrassing loss to Arkansas in the Texas Bowl last season, managing to gain only 59 yards of total offense in the 31-7 defeat. Texas leads the series 56-22 with the next scheduled meeting in 2021.
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West Virginia vs. Pittsburgh - Last played: 2011
Pitt and West Virginia are less than 100 miles apart, but the next "Backyard Brawl" is on hold after the Mountaineers joined the Big 12 in 2012. The Panthers dominated the series early in the rivalry's history, but WVU owned the last few decades. One of the most memorable games came in the final years of the series. Pitt pulled off a stunning upset in 2007 to knock the No. 2 Mountaineers out of the national title game.
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Oklahoma vs. Nebraska - Last played: 2010
These two college football heavyweights were the Big 8's Thanksgiving marquee game, but the formation of the Big 12 in 1996 changed that. Oklahoma and Nebraska have met in a top 10 showdown 18 times. The final meeting as conference rivals came in the 2010 Big 12 Championship Game won by the Sooners. They'll meet again in a two-game series in 2021-22.
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Texas vs. Texas A&M - Last played: 2011
It was a Thanksgiving tradition for more than a century, but it's much more than football. Both schools have numerous traditions that involve its biggest rival. Wanting to break out of the shadow of the Longhorns, the Aggies joined the SEC in 2011. Texas won a thriller in the final meeting with a last-second field goal in College Station. The Aggies and Longhorns might not play on the field anymore, but they're still fighting for bragging rights in recruiting and in the facilities arms race.