1-1
Pro W–L
Josh Costello is an Australian mixed martial artist with a professional record of 1-1 across 2 bouts. They've won 1 by KO/TKO, 0 by submission and 0 by decision — a 100 % finish rate. Last competed November 2025 (active). Has fought most often in Australia (2 bouts).
Finish rate
100 %
Wins by
1 KO · 0 SUB · 0 DEC
Usually wins by
KO/TKO
Usually loses by
decision
Fastest win
5:26 (Rd 2)
vs Saxon Stonehouse
Most fights in
Australia 2
Last fought
Nov 2025 · Active
Frequently asked
What is Josh Costello's MMA record?
Josh Costello has a professional MMA record of 1-1 — 1 wins by KO/TKO, 0 by submission, 0 by decision.
How does Josh Costello usually win?
They most often win by KO/TKO (1 of 1 wins).
How does Josh Costello usually lose?
Most of Josh Costello's losses come by decision (1 of 1).
Is Josh Costello still active?
Josh Costello last competed in November 2025, and is considered active (no bout in over two years).
What is Josh Costello's fastest finish?
KO/TKO of Saxon Stonehouse in 5:26 (Rd 2) at NBCSP - Showdown 23.
Where is Josh Costello from?
Josh Costello is a Australian mixed martial artist.