Bacillo Mefi Monterroso
“ Lil Monsta ”
Standout achievements
Bacillo Mefi Monterroso is an American mixed martial artist with a professional record of 6-6 across 12 bouts. They've won 2 by KO/TKO, 1 by submission and 3 by decision — a 50 % finish rate. Most wins come by decision. Currently on a 3-fight skid. Last competed June 2025 (active). Has fought most often in United States (16 bouts).
Fight locations (11 venues)
Career timeline — fights by year
Frequently asked
What is Bacillo Mefi Monterroso's MMA record?
Bacillo Mefi Monterroso has a professional MMA record of 6-6 — 2 wins by KO/TKO, 1 by submission, 3 by decision.
How does Bacillo Mefi Monterroso usually win?
They most often win by decision (3 of 6 wins).
How does Bacillo Mefi Monterroso usually lose?
Most of Bacillo Mefi Monterroso's losses come by KO/TKO (2 of 6).
Is Bacillo Mefi Monterroso still active?
Bacillo Mefi Monterroso last competed in June 2025, and is considered active (no bout in over two years).
What is Bacillo Mefi Monterroso's fastest finish?
KO/TKO of Isaiah Wright in 0:15 (Rd 1) at WFC 18 - Fight Night Sacramento.
Where is Bacillo Mefi Monterroso from?
Bacillo Mefi Monterroso is a American mixed martial artist.
What is Bacillo Mefi Monterroso's longest MMA win streak?
Bacillo Mefi Monterroso's longest winning run on record is 3 straight victories.
Where does Bacillo Mefi Monterroso rank in MMA?
Bacillo Mefi Monterroso sits at #22,818 of 32,631 fighters in the Fight Forensics global MMA rankings.
Pro MMA (12)
Amateur (6)
Amateur bouts — not counted toward the pro record.