Standout achievements
William Rentz is an American mixed martial artist with a professional record of 8-2 across 10 bouts. They've won 8 by KO/TKO, 0 by submission and 0 by decision — a 100 % finish rate. Most wins come by KO/TKO. Currently on a 5-fight win streak. Last competed June 2026 (active). Has fought most often in United States (14 bouts).
Fight locations (4 venues)
Career timeline — fights by year
Frequently asked
What is William Rentz's MMA record?
William Rentz has a professional MMA record of 8-2 — 8 wins by KO/TKO, 0 by submission, 0 by decision.
How does William Rentz usually win?
They most often win by KO/TKO (8 of 8 wins).
How does William Rentz usually lose?
Most of William Rentz's losses come by decision (1 of 2).
Is William Rentz still active?
William Rentz last competed in June 2026, and is considered active (no bout in over two years).
What is William Rentz's fastest finish?
KO/TKO of Nick McCarty in 0:22 (Rd 1) at CN - Combat Night: Tampa.
Where is William Rentz from?
William Rentz is a American mixed martial artist.
What is William Rentz's longest MMA win streak?
William Rentz's longest winning run on record is 5 straight victories.
Where does William Rentz rank in MMA?
William Rentz sits at #7,113 of 32,631 fighters in the Fight Forensics global MMA rankings.
Pro MMA (10)
Amateur (4)
Amateur bouts — not counted toward the pro record.