Standout achievements
Zachary Siemasko is an American mixed martial artist with a professional record of 5-2 across 7 bouts. They've won 5 by KO/TKO, 0 by submission and 0 by decision — a 100 % finish rate. Most wins come by KO/TKO. Last competed June 2026 (active). Has fought most often in United States (7 bouts).
Career timeline — fights by year
Frequently asked
What is Zachary Siemasko's MMA record?
Zachary Siemasko has a professional MMA record of 5-2 — 5 wins by KO/TKO, 0 by submission, 0 by decision.
How does Zachary Siemasko usually win?
They most often win by KO/TKO (5 of 5 wins).
How does Zachary Siemasko usually lose?
Most of Zachary Siemasko's losses come by KO/TKO (2 of 2).
Is Zachary Siemasko still active?
Zachary Siemasko last competed in June 2026, and is considered active (no bout in over two years).
What is Zachary Siemasko's fastest finish?
KO/TKO of Jonif Tucker in 0:34 (Rd 1) at ECF 47 - Fight Zone.
Where is Zachary Siemasko from?
Zachary Siemasko is a American mixed martial artist.
What is Zachary Siemasko's longest MMA win streak?
Zachary Siemasko's longest winning run on record is 4 straight victories.