The primary, fiercest, and most historic athletic rivalry for the University of Central Florida football program is against the University of South Florida, a legendary series universally known as the "War on I-4." This heated in-state showdown features intense regional animosity, passionate student sections, and massive fan engagement across Florida. Additionally, historical conference battles against other regional opponents have fueled competitive excitement, but the annual clash against South Florida remains the absolute centerpiece of the Knights' rivalry calendar.