MatstoriesUpset win
Ended a 6-match win streak
Beat Lochlann McCosker at Grappling Industries BRISBANE while they were on a 6-match run.
Arte Suave Brazilian Jiu Jitsu
Declan Mulheran is a Blue belt Brazilian jiu-jitsu competitor from Arte Suave Brazilian Jiu Jitsu, with a recorded Australian record of 23–5.
Fought 8 recorded matches as Blue since June 2026
Blue, 8 recorded matches at this beltUpset win
Ended a 6-match win streak
Beat Lochlann McCosker at Grappling Industries BRISBANE while they were on a 6-match run.
Wins
23
Win rate
82%
Losses
5
Gi
-
No matches
No-Gi
82%
23–5 · 28 matches
By belt
Finished events, newest first. Each one opens that event recap.
Recorded Australian matches Matstories has synced. Not a world record.
6 rows