| Pro Record: | 1-3-0 (Win-Loss-Draw) |
| Team: | US Marine Corps |
| Sex: | Male |
| Weight: | 160 lbs. |
Sean Williams's Professional Record
| Date | Result | Opponent | Event | Method | Round | Time | ||
|---|---|---|---|---|---|---|---|---|
| NSF | 03/18/2011 | Win | Anthony Jeffries | Ultimate Cage Championships 7: Unfinished Business | Submission Guillotine Choke | 1 | 0:54 | |
| NSF | 02/17/2008 | Loss | Graham Armstrong | Cage Kombat 6 | Submission Kimura | 2 | 1:57 | |
| NSF | 11/08/2007 | Loss | Adam Waterfield | Storm Force 6 | Submission Guillotine Choke | 1 | 1:11 | |
| NSF | 01/27/2001 | Loss | Edwin Dewees | Rage in the Cage 24 | Submission Arm Bar | 1 | 1:38 |
Sean Williams's Amateur Record
| Date | Result | Opponent | Event | Method | Round | Time | ||
|---|---|---|---|---|---|---|---|---|
| NSF | 10/30/2010 | Loss | Steve Hodgson | Cage Conflict 7 | Submission Triangle Choke | 1 | 0:00 | |
| NSF | 11/07/2009 | Loss | Anthony Jeffries | Burnley Brawl 2 | Submission Rear Naked Choke | 1 | 0:00 | |
| NSF | 11/22/2008 | Win | Dean Thorpe | Mapp UK: The Champions 3 | Submission Triangle Choke | 1 | 3:50 |
 : |
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 |
