[1] The event was seen live on pay per view in the United States, and later released on home video.

UFC 12 was the first UFC event to feature weight classes; heavyweights (200 lb and over) and lightweights (under 200 lb) battled in two separate mini tournaments, each consisting of two semifinal bouts and a finals match.

"Judgement Day" also featured two alternate bouts in case of tournament injury.

[2]It was first announced that UFC 12 would be held in Niagara Falls, New York, to which it was ultimately denied sanctioning rights.

Finally, the UFC returned to Alabama, where it appeared in the small city of Dothan, located about 200 miles southeast of Birmingham.