| Gender | Male |
|---|---|
| Height | 0' 0" |
| Weight Class | Lightweight |
| Out of | Ireland |
Darren O'Brien is a MMA fighter with a amateur fight record of 5 wins, 5 losses and 0 draws
| Amateur Record: | 5-5-0 (Win-Loss-Draw) |
|---|---|
| Career Length | 7 years, 11 months, 15 days |
| Rounds Fought | 18.9 |
| Avg. Fights/Year | 1.3 |
| Longest Layoff | 2 years, 4 months, 28 days |
| Quickest Turnaround | 1 month, 11 days |
| Date | Opponent | Weightclass | Method | Round | Time | |||
|---|---|---|---|---|---|---|---|---|
| NSF | 03/24/2024 | L (5-4-0) | Evan Horgan (2-1-0) | LW | Decision Cage Legacy 21 | 3 | 03:00 | |
| NSF | 04/03/2022 | W (4-4-0) | Karl McConway (9-6-0) | BW | Decision (Unanimous Decision) Iur Fighting Championships 3 | 3 | 03:00 | |
| NSF | 10/16/2021 | L (4-3-0) | Nauris Bartoska (2-1-0) | FTW | TKO/RSC (Referee Stoppage from Kicks) Cage Legacy Fighting Championship 13 | 1 | 00:09 | |
| NSF | 09/05/2021 | W (3-3-0) | Abanoub Fares (1-4-0) | Catchweight | Submission (Rear Naked Choke) Iur Fighting Championships 1 | 3 | 02:17 | |
| NSF | 04/07/2019 | W (2-3-0) | Kamil Wincenciak (2-3-0) | BW | TKO/RSC Akuma Fighting Championship 13 | 2 | 00:23 | |
| NSF | 09/29/2018 | L (2-2-0) | Maksim Zamurakin (2-2-0) | Decision (Unanimous Decision) Battle Arena 53 | 3 | 03:00 | ||
| NSF | 07/22/2017 | L (2-1-0) | Mattis Zaharovs (4-2-0) | Decision (Unanimous Decision) Cage Legacy Fighting Championship 3 | 3 | 03:00 | ||
| NSF | 02/11/2017 | W (1-1-0) | Daryl Clarke (5-3-0) | BW | TKO/RSC Cage Legacy Fight Night - Drogheda | 1 | 03:00 | |
| NSF | 07/23/2016 | L (1-0-0) | Mattis Zaharovs (1-1-0) | Submission (Arm Bar) Celtic Gladiator - Fight Night 1 | 1 | 03:00 | ||
| NSF | 04/09/2016 | W (0-0-0) | Dylan Kennedy (0-0-0) | TKO/RSC Total Extreme Fighting Championship 04/09/16 | 1 | 03:00 |
| * 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 |