The War on I-4 is a college rivalry between the University of Central Florida Knights and University of South Florida Bulls. The rivalry is best known for its college football matchup which originated in a series of football games played from 2005 to 2008 and now takes place on Thanksgiving weekend, the de facto "rivalry weekend" for FBS football. From 2013 to 2023, when both schools were part of the American Athletic Conference, the schools began competing annually in all sports both schools sponsored (with the 1993–94 season being the only other season the schools competed in every sport both schools sponsored). In 2016, the schools officially adopted the "War on I-4" as an official competition series. Each year, the team with the most wins across all sports receives a gold trophy styled after an Interstate 4 (I-4) road sign with the logos of each school. The winner of the annual football game also receives a similar trophy.

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UCF

South Florida

  

Locations of USF and UCF

As of March 19, 2024, South Florida holds the all-time series lead for seven of the ten sports in which the schools meet head-to-head: baseball (85–83), men's basketball (28–19), women's basketball (32–17), men's soccer (29–9–4), men's tennis (36–14), women's tennis (20–11) and volleyball (50–45); but UCF disputes the all time records in baseball, women's basketball, men's soccer, and volleyball, claiming the Bulls' records in these sports are 82–82, 29–14, 28–9–4, and 48–44, respectively. The only sports where UCF leads the all time head-to-head series are women's soccer (13–6–4), softball (23–19), and football (8–6). UCF leads the all time trophy series 7–0 (potentially 8–0 if the trophy continued to be awarded after they left the AAC for the Big 12). The Knights also led overall while both schools were in the American Athletic Conference with a 123–81–4 record in conference games against the Bulls across all sports, whereas the all-time total across all sports is 310–241–8 in favor of the Bulls. The Knights lead 11–10–2^{[lower-alpha 1]} all time in conference tournament matches and the teams are tied 4–4–1 in conference championship games (though USF has actually won five conference championships head-to-head against the Knights; the tie denotes that their 2017 women's soccer title was won on penalty kicks). The Bulls are 6–4 against UCF in NCAA tournament games and 1–0 in other postseason meetings,^{[lower-alpha 2]} making the overall postseason total 17–15–2 in favor of the Bulls.

As the schools are now in separate conferences, they meet less often in sporting events than they did from 2013–2023.

The most recent meeting was on March 19, 2024 in men’s basketball in round one of the 2024 National Invitation Tournament, a game that USF won 83–77, with no future games currently scheduled between the two schools in any NCAA-sanctioned sports.

Starting when the schools first met on the gridiron in 2005, some writers dubbed the rivalry the "War on I-4". When the series resumed in 2013, administrators from both schools named it the "I-4 Corridor Clash". Both names refer to Interstate 4, an interstate highway that runs through both Orlando and Tampa.^[1][2] In 2016, when the schools announced the official competition, they formally adopted the "War on I-4" name.^[3][4]

The name "War on I-4" had previously been used for an arena football rivalry between the Tampa Bay Storm and Orlando Predators from 1992 to 2016. The Storm and Predators were located in the same metropolitan areas as USF and UCF respectively and were two of the most successful franchises in the league, with the Storm winning five Arena Bowls and the Predators winning two. The name became available when the Predators folded following the 2016 season.

Since September 21, 2016, when the rivalry series was officially established, USF and UCF have scored their competitions in the 14 sports represented at both universities (South Florida is the only one of the two schools to sponsor men's cross country, women's sailing, and men's track & field while UCF is the only one of the two schools to sponsor women's rowing). Each sport is worth 6 total points, meaning the point system typically grants:

• 1 point to the winner of each regular season baseball game (6 games per year)
• 3 points to the winner of each regular season men's basketball game (2 games per year)
• 3 points to the winner of each regular season women's basketball game (2 games per year)
• 6 points to the higher finisher at the American Athletic Conference Women's Cross Country Championship
• 6 points to the winner of the annual football game
• 6 points to the higher finisher at the American Athletic Conference Men's Golf Championship
• 6 points to the higher finisher at the American Athletic Conference Women's Golf Championship
• 6 points to the winner the each regular season men's soccer match (3 points awarded to each side in the event of a draw)
• 6 points to the winner of the annual regular season women's soccer match (3 points awarded to each side in the event of a draw)
• 2 points to the winner of each regular season softball game (3 games per year)
• 6 points to the winner of the annual regular season men's tennis match.
• 6 points to the winner of the annual regular season women's tennis match.
• 3 points to the higher finisher at the American Athletic Conference Women's Indoor Track & Field Championship
• 3 points to the higher finisher at the American Athletic Conference Women's Outdoor Track & Field Championship
• 3 points to the winner of each regular season volleyball match (2 matches per year)
• In the event of a tie in the overall competition, the athletic program that scores higher in the annual NCAA Graduation Success Rate will be awarded 1 extra point and crowned as the champion for that season. In the unlikely event that this is also tied, the series ends as a tie for that season and the previous winner retains the trophy.

In some years the scoring is slightly different. For example, USF and UCF only met once in women's basketball for the 2016–2017 season, so that game was worth all 6 points. Likewise, in 2020 and 2021 the sides played two men's soccer matches instead of one, which were worth 3 points each and awarded 1.5 points to each in the event of a draw. In all, there are 84 available points with 43 points required to clinch the title. As mentioned above, only regular season matches are counted toward War on I-4 point totals for the 10 sports in which the teams compete head-to-head, meaning if the Bulls and Knights meet in an exhibition game, conference championship, NCAA tournament, or a football bowl game, that game wouldn’t count for War on I-4 competition purposes.^[13]

UCF clinched the first academic year's overall title with an AAC women's golf championship on April 18, 2017.^[14] The 2016–17 competition ended on May 20 with a 3–2 Knights victory in a baseball game, making the final point total 51 points to 33 points for UCF.^[15]

On April 17, 2018, the Knights clinched the overall title for the second consecutive year, again in the AAC women's golf championship. UCF finished second in the event, while USF finished ninth.^[16][17] The series concluded on May 13 with UCF placing higher than USF in the 2018 American Athletic Conference outdoor track and field competition and led to a final series score of 49–35 for UCF.^[18]

UCF clinched the overall title for the third straight year on April 7, 2019, with a 5–0 victory in baseball, the earliest clinch in the competition's history.^[19] The series concluded on May 12 with UCF placing higher than USF in the American Athletic Conference women's outdoor track and field competition, making the final score 70–14 in favor of the Knights, the largest margin of victory in the competition's history.^[20]

The 2019–20 edition ended in March due to spring sports being canceled because of the COVID-19 pandemic. UCF led the series 36–9 at the time of the cancellation^[21] and was awarded the victory for the season, even though the schedule was not complete and UCF did not meet the point thresholds for winning in a normal season. This marked UCF's fourth-consecutive win in the War on I-4.

The pandemic also caused the point system to slightly change for the 2020–21 edition of the rivalry. The AAC Women's Indoor Track & Field Championship was canceled, so the higher finisher at the AAC Women's Outdoor Track & Field Championship received 6 points instead of 3. Men's tennis and men's soccer both met twice in the regular season instead of once, so each of these matches counted for 3 points toward the victor's total rather than the usual 6.^[22] In addition there were four softball games and eight baseball games instead of the usual three of each, so each game was worth 1.5 and 0.75 points respectively rather than 2.^[23] UCF clinched the overall competition for the fourth time on April 17, 2021, with a 5–4 baseball win in Orlando. The point series ended on May 16 when UCF finished one place above USF in the women's outdoor track and field championship, making the total score 59.25–24.75, but the last meeting of the season between the two schools took place on May 30 when USF beat UCF in the 2021 American Athletic Conference baseball tournament championship game, though this did not add to USF's point total as it was a postseason meeting.^[24]

For the 2021–22 season, most of the sports reverted back to their usual schedules, with the exception of men's soccer staying at two games per year and baseball changing to six games per year. On April 16, 2022, UCF officially clinched the series for the 2021–22 season, securing the 43 points needed after defeating USF 4–0 in women's tennis. The final score for the season was 58–26.

During 2022–23, the final season with both teams in the American Athletic Conference, UCF started out with scoring 24 of the first 30 points (only losing the Men’s Soccer game) to take an early commanding 24–6 lead, but USF would rally to score 14 of the next 17 points (only being outranked in the Women’s AAC Indoor Track & Field Championship) to cut the UCF lead to a closer 27–20 before UCF scored 36 of the last 37 points (losing only one Men’s Baseball game) to win in a 63–21 blowout, officially clinching after finishing higher than USF in the AAC women's golf championship on April 19, 2023.

During 2023–24, the first non-conference season since 2012–13 and the continued awarding of the trophy being uncertain, the two schools only played regular season games in Women’s Soccer, Men’s Tennis, and Baseball, resulting in 18 points up for grabs with 10 needed to win. UCF won the Women’s Soccer game to take a 6–0 lead on September 10, which would be the last meeting between the two schools for almost six months before the two schools met again on March 1 in both Men’s Tennis and game one of the 3-game baseball series. UCF won both games that day, clinching the point series. USF would win one of the two remaining baseball games for a 16–2 UCF win. It is unknown if UCF officially won the trophy this season or not, as they have not officially been announced to have won the trophy, and would retain possession of the trophy regardless of if it was officially awarded this season or not. The two schools would also meet in round one of the 2024 National Invitation Tournament in men’s basketball, a meeting which USF beat UCF 83–77.

The two schools began competing against one another in men's basketball during the 1971–72 season and have met 48 times to date. The Bulls currently hold a 27–19 edge over the Knights, however two Knights' victories were vacated due to NCAA sanctions, and UCF holds a 14–7 series lead since both teams joined the American Athletic Conference.^[43] USF and UCF are both tied for the longest win streaks in the series with the Bulls having won nine consecutive games against their rival from 1994 to 2007, while the Knights won nine straight from 2016 to 2020.^[44][45] The schools met in the postseason for the first time when they played in the first round of the 2022 American Athletic Conference tournament, which UCF won 60–58; they were scheduled to face each other in the first round of the 2020 edition before it was canceled less than an hour before tip-off due to the COVID-19 pandemic.^[46]

Bold dates indicate conference games
Italic dates indicate games that count toward the trophy series

^A 2022 American Athletic Conference tournament – First round
^B 2024 National Invitation Tournament – First round

USF and UCF claim two different women's basketball records, due to when they declare the first meeting occurred. According to USF, they lead the women's basketball series 32–17, with the first meeting occurring on January 20, 1973, with a 41–30 Bulls win in Tampa.^[47] According to UCF, the first meeting occurred on January 12, 1978, with USF winning 81–70 in Tampa, resulting in a 29–14 USF lead in the series.^[48] South Florida has won two of the three times the schools met in the American Athletic Conference tournament (the 2018 semifinal and the 2021 championship game, with UCF winning in the 2022 championship game). The Bulls hold a 12–8 lead in conference play.^[49][50][51] In 2021, the Bulls and Knights were in first and second place in the conference respectively going into the final two games of the regular season, both of which were War on I-4 matchups. UCF needed to win both games to clinch the title, while USF only needed to win one. The Bulls beat the Knights in Tampa in the first game to win the conference championship.^[52] The Bulls beat the Knights again nine days later in the AAC Tournament championship game.^[53] They met again in the championship game the following season, where the Knights came away victorious. The Bulls also won the 2023 regular season AAC title in a win at UCF on February 15.

Bold dates indicate conference games
Italic dates indicate games that count toward the trophy series

^A 2018 American Athletic Conference tournament – Semifinal
^B 2021 American Athletic Conference tournament – Championship game
^C 2022 American Athletic Conference tournament – Championship game

The schools claim two different baseball records due to when they declare the first meeting occurred. According to USF, they lead the baseball series 85–83, with the first meeting occurring on March 13, 1971, with the Bulls winning 5–1 in Tampa.^[54][55][56] However, according to UCF the first meeting was FTU's 6–3 victory over USF on April 12, 1973 in Orlando, making the series an 82–82 tie. UCF has a 23–20 lead in the series since both teams have played in the same conference.

It is by far the most-played sport between the two teams, with 168 (or 164 according to UCF) meetings.^[56][57] The two teams have played four times in the NCAA tournament (all of which coming in Regional play), splitting the games 2–2. Each team has won once head-to-head in the American Athletic Conference baseball tournament, with the Knights winning in the 2017 quarterfinal and the Bulls winning in the 2021 championship game.

Bold dates indicate conference games
Italic dates indicate games that count toward the trophy series

^A 1993 NCAA tournament – Regional second round
^B 1997 NCAA tournament – Regional first round
^C 2002 NCAA tournament – Regional first round
^C 2002 NCAA tournament – Regional second round
^E 2017 American Athletic Conference tournament – Quarterfinal
^F 2021 American Athletic Conference tournament – Championship game

USF and UCF claim different records in men's soccer, due to when they declare the first meeting occurred. USF claims the first meeting occurred in 1974 with USF winning 2–1, giving the Bulls a 29–9–4 lead. According to UCF the first meeting occurred in 1975 with USF winning 4–1, giving the Bulls a 28–9–4 lead. The sides have met in the NCAA tournament twice with each team winning one of those meetings. USF won the only meeting in the American Athletic Conference tournament and leads the series 8–5 for conference games as a whole.^[58][59][60]

On August 17, 2023, the two schools faced off in an exhibition game, which does not count in the records, that USF won 2–0.

Bold dates indicate conference games
Italic dates indicate games that count toward the trophy series

^A 2010 NCAA tournament – Regional first round
^B 2011 NCAA tournament – Regional second round
^C 2016 American Athletic Conference tournament – Semifinal

The first women's soccer meeting between the teams occurred in 1998 with USF winning 4–0 in Tampa. UCF currently leads the series 13–6–4, the best record of any of their teams against the Bulls. The schools have met in the American Athletic Conference tournament four times, with South Florida leading those matches 2–0–2. In the two tournament games that ended in ties, each side advanced on penalty kicks one of those times. The series is tied 5–5–4 in conference games between the schools.^{[61][62][63][64][65]}

Bold dates indicate conference games
Italic dates indicate games that count toward the trophy series

^A 2013 American Athletic Conference tournament – Semifinal
^B 2015 American Athletic Conference tournament – Semifinal
^C 2017 American Athletic Conference tournament – Championship game
^D 2019 American Athletic Conference tournament – Semifinal

Softball was first played between the Bulls and then-Golden Knights on April 16, 2003, in a doubleheader in Tampa.^[7][66][67] USF won both games 9–0 and 5–4 respectively. The two schools have played each other in the NCAA tournament four times with USF holding a 3–1 lead while UCF won all three American Athletic Conference tournament meeting between the schools.^{[68][69][70][71][72]} Sara Nevins of USF threw the only no hitter in the series in the first game of a doubleheader on April 12, 2014, the first game where USF and UCF were in the same conference. USF and UCF are tied 19–19. UCF has a 17–10 lead since both teams joined the American.