UFC 61: Bitter Rivals was a mixed martial arts event held by the Ultimate Fighting Championship on Saturday, July 8, 2006. The main event was a Heavyweight Championship match between champion Tim Sylvia and former champion Andrei Arlovski. The co-main event was the highly anticipated re-match of TUF 3 coaches Tito Ortiz and Ken Shamrock.

UFC 61: Bitter Rivals

UFC 110: Nogueira vs. Velasquez was a mixed martial arts event held by the Ultimate Fighting Championship (UFC) on Sunday, 21 February 2010 in Sydney, New South Wales, Australia, at Acer Arena.

UFC 110: Nogueira vs. Velasquez

UFC 127: Penn vs. Fitch was a mixed martial arts event held by the Ultimate Fighting Championship on Sunday, 27 February 2011 at Acer Arena in Sydney, Australia.

UFC 127: Penn vs. Fitch

UFC 138: Leben vs. Muñoz was a mixed martial arts event held by the Ultimate Fighting Championship on November 5, 2011 at LG Arena in Birmingham, United Kingdom. The event aired on the same day, via tape delay, on Spike TV in the United States and live on Sportsnet in Canada. The event was the second that the UFC has hosted in Birmingham, the first was UFC 89 back in 2008 also featuring Chris Leben in the main event. The main event was the first non-title five round fight in the history of the UFC.