| Age | 23 |
|---|---|
| Gender | Male |
| Height | 6' 1" |
| Weight Class | Welterweight |
Roman Guillen is a MMA fighter with a amateur fight record of 4 wins, 3 losses and 0 draws
| Amateur Record: | 4-3-0 (Win-Loss-Draw) |
|---|---|
| Career Length | 1 year, 6 months, 16 days |
| Rounds Fought | 11.3 |
| Avg. Fights/Year | 4.7 |
| Longest Layoff | 5 months, 28 days |
| Quickest Turnaround | 1 month, 11 days |
| Date | Opponent | Weightclass | Method | Round | Time | |||
|---|---|---|---|---|---|---|---|---|
| | 03/01/2024 | L (4-2-0) | Jackson Hemauer (3-0-0) | WW (170.0 vs. 170.0) | Decision (Unanimous Decision) 559 Fights 104 "Johnson vs. Firinaiu" | 3 | 03:00 | |
| | 12/22/2023 | W (3-2-0) | Vlad Burian (2-2-0) | WW (170.0 vs. 170.0) | KO 559 Fights 102 "Reyes vs. Anguiniga" | 1 | 02:02 | |
| | 06/24/2023 | L (3-1-0) | Jared Sutherland (3-1-0) | WW (170.0 vs. 170.0) | TKO/RSC 559 Fights 98 "Guillen vs. Sutherland" | 2 | 02:04 | |
| | 03/10/2023 | W (2-1-0) | Michael Ramirez (2-1-0) | WW (170.0 vs. 170.0) | Decision (Majority Decision) 559 Fights 95 - Torres vs. Benevidez | 3 | 03:00 | |
| | 11/19/2022 | L (2-0-0) | Nate Santos (2-1-0) | WW (170.0 vs. 170.0) | Decision (Unanimous Decision) 559 Fights 92 | 3 | 02:00 | |
| | 09/24/2022 | W (1-0-0) | Daniel Bradley (4-3-0) | WW (170.0 vs. 170.0) | Submission 559 Fights 90 "Maldonado vs. Burgos 2" | 1 | 01:17 | |
| | 08/13/2022 | W (0-0-0) | Sang Han (0-0-0) | WW (170.0 vs. 170.0) | TKO/RSC 559 Fights 89 "Ozuna vs. Sandoval" | 1 | 01:33 |
| * 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 |