Ultimate Brazil marked the first UFC event (other than UFC 9) to not utilize the tournament format which, aside from UFC 23, was abandoned completely in following events. The event featured the first ever UFC Lightweight Championship fight, as well as a Middleweight Championship fight.
Ultimate Brazil was the first UFC event (excluding UFC 9) to not utilize a tournament format, which led to the complete abandonment of this format in subsequent events. This event also marked the introduction of the UFC Lightweight Championship and the Middleweight Championship fight.