Sebastian Sierra is an Argentine mixed martial artist with a professional record of 5-0 across 5 bouts. They've won 0 by KO/TKO, 4 by submission and 1 by decision — a 80 % finish rate. Most wins come by submission. Currently on a 5-fight win streak. Last competed September 2025 (active). Has fought most often in Argentina (4 bouts).
Fight locations (1 venues)
Career timeline — fights by year
Frequently asked
What is Sebastian Sierra's MMA record?
Sebastian Sierra has a professional MMA record of 5-0 — 0 wins by KO/TKO, 4 by submission, 1 by decision.
How does Sebastian Sierra usually win?
They most often win by submission (4 of 5 wins).
Is Sebastian Sierra still active?
Sebastian Sierra last competed in September 2025, and is considered active (no bout in over two years).
What is Sebastian Sierra's fastest finish?
submission of Giovanni Cubelli in 0:54 (Rd 1) at UPL 6 - 1st National Tournament: Argentina vs. Uruguay.
Where is Sebastian Sierra from?
Sebastian Sierra is a Argentine mixed martial artist.
What is Sebastian Sierra's longest MMA win streak?
Sebastian Sierra's longest winning run on record is 5 straight victories.