☰
| Team | Power MMA Team |
|---|---|
| Age | 50 |
| Gender | Male |
| Height | 6' 0" |
| Weight Class | Welterweight |
| Out of | Phoenix, AZ, AZ |
| Born | Gunnison, CO |
Aaron Simpson is a MMA fighter with a professional fight record of 11 wins, 5 losses and 0 draws
| Pro Record | 11-5-0 (Win-Loss-Draw) |
|---|---|
| Career Length | 12 years, 11 months, 6 days |
| Rounds Fought | 30.0 |
| Avg. Fights/Year | 1.2 |
| Longest Layoff | 7 years, 9 months, 16 days |
| Quickest Turnaround | 2 months, 24 days |
| Date | Opponent | Weightclass | Method | Round | Time | |||
|---|---|---|---|---|---|---|---|---|
 | 03/23/2013 | L (11-4-0) | Josh Burkman (24-9-0) | WW (170.0 vs. 171.0) | KO World Series of Fighting 2 | 1 | 03:04 | |
| | 10/05/2012 | L (11-3-0) | Mike Pierce (16-4-0) | WW (171.0 vs. 171.0) | KO UFC on FX: Browne vs. Bigfoot | 2 | 00:29 | |
| | 07/11/2012 | W (10-3-0) | Kenny Robertson (11-1-0) | WW (171.0 vs. 170.0) | Decision (Unanimous Decision) UFC Fuel 4: Munoz vs. Weidman | 3 | 05:00 | |
| | 02/15/2012 | L (10-2-0) | Ronny Markes (11-1-0) | MW (186.0 vs. 185.0) | Decision (Split Decision) UFC on Fuel: Sanchez vs. Ellenberger | 3 | 05:00 | |
| | 10/08/2011 | W (9-2-0) | Eric Schafer (13-6-2) | MW (186.0 vs. 185.5) | Decision (Unanimous Decision) UFC 136 Edgar vs Maynard III | 3 | 05:00 | |
| | 07/02/2011 | W (8-2-0) | Brad Tavares (7-0-0) | MW (185.0 vs. 186.0) | Decision (Unanimous Decision) UFC 132: Cruz vs.Faber | 3 | 05:00 | |
| | 03/26/2011 | W (7-2-0) | Mario Miranda (10-2-0) | MW (185.0 vs. 185.0) | Decision (Unanimous Decision) UFC Fight Night 24 | 3 | 05:00 | |
| | 11/20/2010 | L (7-1-0) | Mark Munoz (8-2-0) | MW (185.0 vs. 185.0) | Decision (Unanimous Decision) UFC 123: Jackson vs. Machida | 3 | 05:00 | |
| | 06/19/2010 | L (7-0-0) | Chris Leben (17-7-0) | MW (186.0 vs. 186.0) | TKO/RSC (Referee Stoppage from Strikes) The Ultimate Fighter: Team Liddell vs. Team Ortiz Finale | 2 | 04:17 | |
| | 01/11/2010 | W (6-0-0) | Tom Lawlor (6-1-0) | MW (185.0 vs. 185.0) | Decision (Split Decision) UFC Fight Night: Maynard vs Diaz | 3 | 05:00 | |
| | 08/29/2009 | W (5-0-0) | Ed Herman (15-7-0) | MW (185.0 vs. 185.0) | TKO/RSC (Injury) UFC 102: Couture vs. Nogueira | 2 | 00:17 | |
| | 04/01/2009 | W (4-0-0) | Tim McKenzie (10-5-0) | MW | TKO/RSC (Referee Stoppage from Strikes) UFC Fight Night: Condit vs Kampmann | 1 | 01:40 | |
| | 11/05/2008 | W (3-0-0) | David Avellan (5-0-0) | MW (184.5 vs. 185.0) | KO (Strike) WEC 36: Faber vs. Brown | 1 | 00:18 | |
| NSF | 05/31/2008 | W (2-0-0) | Travis Degraw (0-0-0) | TKO/RSC FMF 2 - Full Moon Fighting 2 | 3 | 03:22 | ||
| | 02/01/2008 | W (1-0-0) | Scott Dingman (0-0-0) | LHW (197.0 vs. 202.0) | TKO/RSC Bodog Fight: Las Vegas | 1 | 02:40 | |
| NSF | 04/16/2000 | W (0-0-0) | Billy Onlewski (0-0-0) | Submission (Rear Naked Choke) Arizona Cage Combat 04/16/2000 | 1 | 04:02 |
| * Bouts marked with an 'Official' logo denote results which have been verified by an ABC-recognized athletic commission * Bouts marked with an (*) are considered exhibition bouts and do not count towards the fighter's record * Weights marked with an (*) denote those over the limit for the weight class |