Events such as UFC 72, which took place in Belfast, Northern Ireland, were sold on pay-per-view, but due to tape-delay, purchase rates were not as high as events that aired at a traditional starting time. Most of the 'numbered' events have taken place on pay-per-view, though there have been a few exceptions for reasons such as tape-delay. 'UFC Live' events, formerly aired on Versus.'UFC on Fuel TV' events, formerly aired on Fuel TV.'UFC on FX' events, formerly aired on FX.' UFC on Fox' events, formerly aired on Fox.'UFC on ESPN' events, currently airing on ESPN.'UFC on ABC' events, currently airing on ABC.'The Ultimate Fighter Finale' events, currently airing on ESPN+, formerly aired on Spike, FX, Fox Sports 1 or UFC Fight Pass.'Fight Night' events, currently airing on ESPN+, formerly aired on Spike, Fox Sports 1, Fox Sports 2 or UFC Fight Pass.'Numbered' events, currently airing on pay-per-view, with some exceptions.
UFC events are separated into nine different formats: Traditionally, every event starts off with a preliminary card followed by a main card, with the last fight being known as the main event. UFC's first event, UFC 1, took place on November 12, 1993. This is a list of events held and scheduled by the Ultimate Fighting Championship (UFC), a mixed martial arts promotion based in the United States. All UFC bouts take place inside the Octagon.