4 of 4 brackets ·
(Kids/Youth Gi / Yellow Belt / 10 -12 years / 79 – 88 lbs.) (Bracket 125) 3 matches Winner Harlow Jones
Final
Harlow Jonescareer 44-23
W
Max Adlemancareer 1-2
L
Final
Max Adlemancareer 1-2
W
Harlow Jonescareer 44-23
L
Final
Harlow Jonescareer 44-23
W
Max Adlemancareer 1-2
L
(Kids/ Youth Gi / Grey Belt / 10 - 11 years / 71 - 80 lb.) (Bracket 128) 2 matches Winner Jase Cook
Final
Jase Cookcareer 132-22
W
James Hansoncareer 0-3
L
Final
Jase Cookcareer 132-22
W
Shannon Pollardcareer 0-1
L
(Kids/Youth No-Gi / Advanced / 10 years / 63 – 79 lb.) (Bracket 224) 2 matches Winner Samwise Curtis
Final
Samwise Curtiscareer 16-8
W
Harlow Jonescareer 44-23
L
Final
Samwise Curtiscareer 16-8
W
Harlow Jonescareer 44-23
L
(Kids/Youth No-Gi / Intermediate / 11 - 12 years / 69 – 80 lb.) (Bracket 219) 2 matches Winner Jase Cook
Final
Jase Cookcareer 132-22
W
Lincoln Nguyencareer 0-2
L
Final
Jase Cookcareer 132-22
W
Lincoln Nguyencareer 0-2
L
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Gym standings
Ranked on win rate adjusted for how many matches a gym actually had, so a 2–0 team doesn't outrank a 15–6 one. Medals appear once the organiser publishes placements.
| Gym | W–L | Win % | Sub % | |
|---|---|---|---|---|
| 1 | Westcoast BJJ | 4–0 | 100% | 100% |
| 2 | On Guard Brazilian Jiu Jitsu | 2–0 | 100% | 100% |
| 3 | Gentle Human BJJ | 2–3 | 40% | 0% |
| 4 | Kindred Jiu-Jitsu | 1–2 | 33% | 100% |
| 5 | Gig Harbor Mixed Martial Arts | 0–1 | 0% | 0% |
| 6 | Shaolin Mixed Martial Arts | 0–1 | 0% | 0% |
| 7 | Definitive Jiu-Jitsu | 0–2 | 0% | 0% |
Proving Grounds Submission Only BJJ/No-Gi Grappling Tournament XXVIII · 2025-09-13 · Bellevue, Wa. 25 competitors from 7 gyms across 31 brackets, 9 matches, 0% ended by submission. Every name on this page links to that competitor's full record.