| Amateur Record: | 5-3-0 (Win-Loss-Draw) |
| Team: | |
| Age: | 34 |
| Sex: | Male |
| Height: | 5 Feet. 8 Inch(es). |
| Weight: | 145 lbs. |
| Out of: | OH |
Brett Gruber's Amateur Record
| Date | Result | Opponent | Event | Method | Round | Time | ||
|---|---|---|---|---|---|---|---|---|
| 07/16/2011 | Win | Nate Mango | NAAFS Proving Ground Series 9 | Submission Guillotine Choke | 1 | 1:23 | ||
| 12/04/2010 | Loss | Isaiah Chapman | NAAFS: Night of Champions 2010 | Decision Unanimous Decision | 3 |
|
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| 10/09/2010 | Win | Brandon Poindexter | NAAFS: Caged Fury 12 | Decision Unanimous Decision | 3 | |||
| 07/24/2010 | Win | Mario Micale | NAAFS: War on the Shore 4 | Submission Triangle Choke | 1 | 2:31 | ||
| 04/17/2010 | Win | Matt Montgomery | NAAFS: North Coast Showdown 5 | Submission Triangle Choke | 2 | 1:34 | ||
| 02/27/2010 | Win | Jarred Mayforth | Rude Awakening | Submission Triangle Choke | 2 | 1:43 | ||
| 08/08/2009 | Loss | Dan Farnworth | NAAFS: Ruckus at the Riverside | Decision Split Decision | 3 | |||
| 04/25/2009 | Loss | Jared Lijoi | NAAFS: Midwest Combat Challenge 7 | TKO/RSC | 1 | 0:17 |
| 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 |

