UFC 81 Results

PPV Fights:
- Tyson Griffin def. Gleison Tibau via Unanimous Decision (30-27, 30-27, 30-27) after 3 Rounds.
- Ricardo Almeida def. Rob Yundt via Submission (guillotine choke) at 1:08 of Round 1.
- Nate Marquardt def. Jeremy Horn via Submission (guillotine choke) at 1:37 of Round 2.
- Frank Mir def. Brock Lesnar via Submission (kneebar) at 1:30 of Round 1.
- Antonio Rodrigo Nogueira def. Tim Sylvia via Submission (guillotine choke) at 1:28 of Round 3 to become interim UFC Heavyweight champion

Prelim Fights:
- Rob Emerson def. Keita Nakamura via Split Decision (30-27, 29-28, 30-27) after 3 Rounds.
- Marvin Eastman def. Terry Martin via Unanimous Decision (30-27, 29-28, 30-27) after 3 Rounds.
- Tim Boetsch def. David Heath via TKO (strikes) at 4:52 of Round 1.
- Chris Lytle def. Kyle Bradley via TKO (strikes) at 0:33 of Round 1