Jack Duncan

Waterloo Jiu Jitsu

1–3
Record
0%
Submission rate
2y 6m
Career
1:53
Avg match
2.5
Avg place

Brazilian Jiu-Jitsu competitor. 4 matches across 1 event since Apr 2024, from Smoothcomp results.

Provisional rating · 8 more matches to get ranked

Rating 1177

Apr 13, 2024 · Canadian Sport Jiu-Jitsu and Self Defence National Championships · 1–3

L10 L L L W
3-loss streak
Best win
OpponentTheir rating
  • 1
    Kai Skarupa Canadian Sport Jiu-Jitsu and Self Defence National Championships · Apr 2024
    1278

Opponents & match history

4 matches

Newest first, grouped by tournament. Each tournament shows its rating change and the wins we expected; tournaments rated together are one entry.

Canadian Sport Jiu-Jitsu and Self Defence National ChampionshipsApr 13, 2024 · expected 1.6 wins 1–3first rating
L
Kai SkarupaHamilton School of Martial Arts
points2:00
L
Karina SpeharMilton Jiu-jitsu
points3:00
L
Andres CasasNexus Martial Arts Beamsville
fullippon2:01
W
Kai SkarupaHamilton School of Martial Arts
disqualification0:29
Full event results →

Jack Duncan is a Brazilian Jiu-Jitsu competitor out of Waterloo Jiu Jitsu. JitsDex holds 4 matches across 1 event, going back to Apr 2024 — a 1–3 record compiled from Smoothcomp tournament results. JitsDex rates Jack Duncan 1177 (provisional: not yet ranked on a board).

1 events · 4 matches · first event on record Apr 2024 · jitsdex.com

Rating 1177 · skill 1411 ± 147 · quality wins 0/8 · data as of 2026-10-24

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