| Gender | Male |
|---|---|
| Height | 5' 8" |
| Weight Class | Lightweight |
Ronald Mastrana Siahaan is a MMA fighter with a professional fight record of 8 wins, 2 losses and 0 draws
| Pro Record | 8-2-0 (Win-Loss-Draw) |
|---|---|
| Career Length | 4 years |
| Rounds Fought | 15.0 |
| Avg. Fights/Year | 2.5 |
| Longest Layoff | 7 months, 11 days |
| Quickest Turnaround | 1 month, 12 days |
| Date | Opponent | Weightclass | Method | Round | Time | |||
|---|---|---|---|---|---|---|---|---|
| NSF | 04/11/2026 | (8-2-0) | Wendris Patilima (11-2-0) | LW | One Pride MMA 89 | 5 | 05:00 | |
| NSF | 06/14/2025 | W (7-2-0) | Alan Darmawan (4-2-0) | LW | Decision (Unanimous Decision) One Pride MMA 87 | 5 | 05:00 | |
| NSF | 11/02/2024 | W (6-2-0) | Sukma Prawira Aditya (5-2-0) | LW | Submission (Rear Naked Choke) One Pride MMA 84 | 1 | 04:26 | |
| NSF | 06/08/2024 | W (5-2-0) | Derigun Yi (5-6-0) | LW | Submission (Rear Naked Choke) One Pride MMA 79 - Day 2 | 1 | 01:52 | |
| NSF | 11/11/2023 | W (4-2-0) | Angga Angga (3-2-0) | LW | Submission (Rear Naked Choke) One Pride MMA 74 | 2 | 02:03 | |
| NSF | 07/08/2023 | W (3-2-0) | Supriandi Naibaho (0-1-0) | LW | TKO/RSC (Referee Stoppage from Punches) One Pride MMA 70 | 2 | 02:15 | |
| NSF | 12/03/2022 | W (2-2-0) | Alan Darmawan (0-0-0) | LW | TKO/RSC (Referee Stoppage from Kicks) One Pride MMA 65 | 2 | 02:10 | |
| NSF | 05/21/2022 | W (1-2-0) | Alfons Ap (2-4-0) | LW | Submission (Guillotine Choke) One Pride MMA 58 | 1 | 03:14 | |
| NSF | 11/06/2021 | L (1-1-0) | Sukma Prawira Aditya (0-1-0) | Submission (Rear Naked Choke) One Pride MMA 52 | 1 | 02:14 | ||
| NSF | 09/25/2021 | W (0-1-0) | Supriandi Naibaho (0-0-0) | Decision (Unanimous Decision) One Pride MMA 49 | 3 | 05:00 | ||
| NSF | 06/12/2021 | L (0-0-0) | Deni Daffa (0-0-0) | LW | Submission (Arm Triangle Choke) One Pride MMA 46 | 1 | 01:44 |
| * 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 |