Submission Only Grappling Tournament. We believe in “no points and no excuses.” At the Proving Grounds, leaving it to the referee is not an option.
The Proving Grounds Submission Only Grappling Tournament was designed to allow BJJ and Submission Grappling players a venue to test and showcase their skills in a safe and fair environment. It is our goal to be THE home of the best submission finishers on the planet.
05/04/2026
It’s that time. Come join in for Proving Grounds 30th event. As Washington State’s Longest Running Submission Only Tournament we would like to thank you all for your years of support.
Also as a reminder, women and girls sign up early so we can get you into brackets. At all ages, we will do our best to keep the girls in their own brackets separate from the boys.
05/01/2026
Ladies, register early and let’s fill some brackets. No better way to test your skills and make some new friends. Proving Grounds’ 30th event will be a blast👊🏿🤼
03/09/2026
02/06/2026
Our guest instructor for February! Sign-up and Reserve your spot at www.bellinghammma.com
01/14/2026
GROUND CONTROL: SUPERFIGHTS — Matchups Coming Soon
We’re assembling the March 21, 2026 superfight card and will be announcing matchups shortly. The event takes place at Rebellion Jiu Jitsu (Burien, WA) and will be streamed live via Smoothcomp.
If your squad has what it takes, we are also looking for a quintet team.
5v5
800lb weight limit
Finishers only
📅 March 21, 2026
📍 Rebellion Jiu Jitsu — Burien, WA
📺 Live Stream: Smoothcomp
🎟️ Tickets & Info: www.kyspromotions.com
Athlete Interest (GI / NO-GI):
If you’d like to be considered for a superfight, please message or comment with:
• Name / Team
• Belt / Weight
• GI or NO-GI (or both)
• Smoothcomp profile link
• Recent competition highlights (optional)
Fans: Feel free to tag athletes or suggest matchups in the comments.
01/01/2026
Proving Grounds returns March 07. Gi + No‑Gi. Fair brackets. Real matches. Registration is officially open. More matches, More learning. Round Robin allday — link in bio.