MatstoriesWin streak
4 in a row
Won the last 4 recorded matches. Those results are at the top of the match list.
Koen Cook is a Grey belt Brazilian jiu-jitsu competitor from Evolve Brazilian Jiu Jitsu, with a recorded Australian record of 6–5.
Fought 11 recorded matches as Grey since Feb 2026
Grey, 11 recorded matches at this beltWin streak
4 in a row
Won the last 4 recorded matches. Those results are at the top of the match list.
Wins
6
Win rate
55%
Losses
5
Gi
57%
4–3 · 7 matches
No-Gi
50%
2–2 · 4 matches
By belt
Finished events, newest first. Each one opens that event recap.
Mat Score
All-time on the current belt board
Recorded Australian matches Matstories has synced. Not a world record.
4 rows