Jens Pulver
After his second victory over Matt Hughes, Hallman moved down in weight and fought Hughes' teammate Jens Pulver for the lightweight UFC championship in September 2001. Both Hallman and Pulver wrestled at the high school level in Washington. Hallman claimed to know Pulver since high school and expressed dislike toward the fighter. Although Pulver denied knowing Hallman personally, he knew of Hallman through their state champion wrestling careers (at different weight classes).