Ronald Mastrana Siahaan
“The Kick of Death”
Standout achievements
Ronald Mastrana Siahaan is an Indonesian mixed martial artist with a professional record of 10-2 across 12 bouts. They've won 2 by KO/TKO, 6 by submission and 2 by decision — a 80 % finish rate. Most wins come by submission. Currently on a 9-fight win streak. Last competed April 2026 (active). Has fought most often in Indonesia (12 bouts).
Fight locations (4 venues)
Career timeline — fights by year
Frequently asked
What is Ronald Mastrana Siahaan's MMA record?
Ronald Mastrana Siahaan has a professional MMA record of 10-2 — 2 wins by KO/TKO, 6 by submission, 2 by decision.
How does Ronald Mastrana Siahaan usually win?
They most often win by submission (6 of 10 wins).
How does Ronald Mastrana Siahaan usually lose?
Most of Ronald Mastrana Siahaan's losses come by submission (2 of 2).
Is Ronald Mastrana Siahaan still active?
Ronald Mastrana Siahaan last competed in April 2026, and is considered active (no bout in over two years).
What is Ronald Mastrana Siahaan's fastest finish?
submission of Derigun Yi in 1:52 (Rd 1) at One Pride MMA Fight Night 79 - Pride of the Nation: Day 2.
Where is Ronald Mastrana Siahaan from?
Ronald Mastrana Siahaan is a Indonesian mixed martial artist.
What is Ronald Mastrana Siahaan's longest MMA win streak?
Ronald Mastrana Siahaan's longest winning run on record is 9 straight victories.
Where does Ronald Mastrana Siahaan rank in MMA?
Ronald Mastrana Siahaan sits at #2,681 of 32,631 fighters in the Fight Forensics global MMA rankings.