| Amateur Record: | 2-3-0 (Win-Loss-Draw) |
| Team: | |
| Age: | 37 |
| Sex: | Male |
| Height: | 5 Feet. 11 Inch(es). |
| Weight: | 176 lbs. |
| Out of: | MO |
William Marquess's Amateur Record
| Date | Result | Opponent | Event | Method | Round | Time | ||
|---|---|---|---|---|---|---|---|---|
| NSF | 04/28/2012 | Loss | Joe Conner | Lesia Smith Memorial Fight | Submission Arm Triangle Choke | 1 | 1:58 | |
| NSF | 03/10/2012 | Win | Richard Cramer | ISCF Fight Night Legends | Submission Guillotine Choke | 1 | 1:19 | |
| NSF | 12/09/2011 | Win | Quincy Washington | E-Treme X-Mas Wars | Submission Triangle Choke | 1 | 1:15 | |
| NSF | 07/30/2011 | Loss | James Register | Ron Garrison: Summer Slam | Submission Arm Bar | 1 | 1:26 | |
| NSF | 05/21/2011 | Loss | Brandon Hill | Redemption | Submission Rear Naked Choke | 1 | 1:16 |
 : |
Bout results verified by an official State, Tribal, Provincial, or Municipal Commission. |
| NSF: | Non Sanctioned Fight |
| * : | For a variety of reasons, including weight disparity and the demands of entertainment, Exhibition Bouts are held, in which the contest is unscripted and hard fought, but the results do not count on a fighter's Official Record. |
| NC: | Fight Declared No Contest |
