The Kentucky–Tennessee rivalry is a college sports rivalry between the University of Kentucky Wildcats and the University of Tennessee Volunteers. The passionate rivalry between these two Southeastern Conference (SEC) schools, located about 173 miles (278 km) apart, dates to their first college football game in 1893, and has continued across all sports, with the men's basketball series gaining particular attention in recent years.

The football rivalry was once a trophy game known as the Battle for the Barrel, with the victors keeping a painted wooden beer barrel, one half each painted in Vol orange the other in Wildcat blue, until the next contest. The barrel tradition was mutually discontinued in 1998 following a fatal alcohol-related car crash involving two Kentucky football players.

The rivalry is sometimes known as the 'Border Battle.^[1][2][3]

In contrast to the football series, Kentucky has generally dominated the basketball rivalry. The two teams first played in 1910.^[4] For the first couple decades the series was often back and forth, and the rivalry became particularly heated in the 1930s and 1940s, when the Volunteers were coached by John Mauer. Mauer had previously been the coach of Kentucky until he was let go and replaced by Adolph Rupp, adding additional bitterness to the rivalry. Under Mauer, the Volunteers held their own against the ascendant Wildcats.^[5] However, from 1945 to 1960, Kentucky won 31 out of 32 games, including a series-record 20 consecutive wins from 1950 to 1960. Overall, Kentucky and Tennessee have met for a total of 232 times and Kentucky has the winning advantage of 157–76.^[6]

Arguably, the most famous game occurred during the historic 1965–66 season. Kentucky had defeated Tennessee 78–64, in Lexington, on February 26, 1966. Notably, Howard Bayne was unable to play for the Vols in that game due to an injured ankle. Kentucky had the next week off, while Tennessee won at Georgia Tech on February 28, 1966, 58–47. Kentucky came into the rematch ranked #1 in the country and was undefeated, at 23–0. Tennessee needed a win just to tie for 3rd in the SEC. On March 5, 1966, a standing room only crowd of over 7500 in the old UT Armory Fieldhouse (later that year expanded to over 12,000 and renamed Stokely Athletic Center) witnessed the upset of college basketball's regular season. The Vols led almost the entire way, winning 69–62. Two sport star Ron Widby, Red Robbins and Howard Bayne led Tennessee with a combined 52 points and 33 rebounds, while future NBA coaching legend, Pat Riley, led Kentucky with 22 points. Tennessee finished 20–8, while Kentucky went on to the NCAA Championship game, where they bowed to Texas Western (now UTEP), 72–65, at Maryland's Cole Fieldhouse, and finished 27–2. The historic championship game featured the all-black starting five of Texas Western against the all-white starting five of Kentucky.

Another particularly notable game was the 1972 match-up at Tennessee. Kentucky had won the previous game by two points, but Ray Mears' Tennessee team surprised the league by achieving the best record to that point. If Tennessee won, they would be sole SEC champions and receive the conference's bid for the NCAA tournament; however, a Kentucky win meant a shared SEC title, with Kentucky receiving the tournament bid via tiebreaker.^[7] Kentucky won the game 67–66 after a last minute missed Tennessee free throw, splitting the conference title and taking away Tennessee's hopes of a tournament bid.^[8]

The rivalry has been among the biggest for both schools. Tennessee claims the most victories against Kentucky of any program in men's college basketball.^[9]

As one of the sports most dominant programs, the Tennessee Lady Vols have controlled the rivalry against Kentucky, leading the all-time series 59–16. While the rivalry may take a back seat to Tennessee's series with UConn, Stanford, Georgia, LSU, and Vanderbilt, as well as Kentucky's longstanding rivalry with South Carolina, the rivalry has gotten especially competitive in the last decade. The teams have met in 4 SEC Tournament title games in 1982, 2010, 2011, and 2014, and Tennessee leads the series in these games 3–1. From 2010 to 2016, the teams met in 13 straight games where both teams were ranked in the top 25, favoring Tennessee 9–4. Under former head coach Matthew Mitchell, Kentucky rose to national prominence and won 2 consecutive games against Tennessee for the first time ever over the 2013 and 2014 seasons. This success continued from Mitchell's years to the first seasons under former Lady Vol player and current Kentucky head coach Kyra Elzy, with Kentucky winning 6 out 10 from 2016 through the 2022 season (and going 9–9 from 2012 to 2022). In February 2023, they met with both teams unranked for the first time since November 1976, and have continued to meet as unranked teams since, with Tennessee has winning 4 in a row and now leading the series 61–16.

• Most-played rivalries in NCAA Division I FBS