Onesie Worlds
MARCH 29, 2026
Location
Head Over Heels Athletic Arts
4701 Doyle St., Emeryville 94608
**at the back of the gym**
Pricing
Price
Athlete Entry Fee: $20
Athlete Entry with Shirt: $40
Spectators: $5
Registration closes on Wednesday, March 25th, at 11:59PM.
*All funds raised go to supporting the Misfit Combat continued mission of providing free community classes and reduced membership pricing*
Schedule
9:30 AM – Doors Open
10:00 AM – Kids Tournament
12:00 PM – Adult Tournament
We will be selling food and beverages throughout the event.
Onesie Worlds returns on March 29th!
Onesie Worlds is the one and only (that we know of) Onesie Submission Only Grappling Competition!
We started this tournament in 2018 and now it’s poised to be our annual FUNdraiser. And we’re making it bigger than ever! Onesie Worlds now has a kids division as well as the adult division. And we’ll be selling food all day long.
So come by, have fun, eat food. Beginners are welcome. Kids will love it. And don’t forget to fear the pit.
*All funds raised go to supporting the Misfit Combat continued mission of providing free community classes and reduced membership pricing*
What’s New
For years we’ve let adults have all the Onesie fighting fun, but we’ve finally opened our tournament up for kids. For the kids division, we will stick to IBJJF point rules rather than submission only rules. At the end of the 2 and a half minute match, if the score is tied, the kids will play the sumo game over the foam pit.
Enjoy made-to-order pancakes and other refreshments as we offer food and drinks for the first time at Onesie Worlds.
We crowned a Hanging Hold Champion last year in the endurance games and now you have a chance to dethrone the king and take the 2026 title. Test your strength and stamina with the Hanging Hold challenge, 20 Burpee Challenge, and Pin the Horn on the Unicorn Challenge. The longest Hanging hold wins, while the fastest Burpee and Pin times win. Prizes will be awarded for the games.
| No Gi. Onesies only. Holds and submissions using parts of your onesie or opponent’s onesie not allowed. |
| Submission Only. If no successful submission, winner will be determined by sudden death sumo challenge in the foam pit. |
| Don’t destroy your opponent’s onesie (or each other). |
| 4 min matches |
| No weigh ins, honor system |
| Minimum Age: 16+ |
| 4+ Competitors: Single Elimination |
| 3 Competitors: Round Robin |
| 2 Competitors: Best 2 out of 3 |
| If a competitor is a no show the bracket will continue and consider the no show fighter as disqualified. |
| We will have women’s, men’s, and mixed divisions. We will strive to arrange brackets so you are matched with opponents close to your weight class/belt rank. But due to the casual/small nature of this event, you may be matched with competitors of different weight class/belt rank. Please have fun and don’t kill each other. |
| Rules |
| No Gi. Onesies only. Holds and submissions using parts of your onesie or opponent’s onesie not allowed. |
| Don’t destroy your opponent’s onesie (or each other). |
| 2.5 min matches |
| See point scoring and regulations below. Unlike adult brackets, kids’ matchups will not be submission-only. |
| If tied points and no submissions, winner will be determined by sudden death sumo challenge in the foam pit. |
| No weigh ins, honor system |
| Age Divisions |
| Kids: 5-12 (If more sign-ups, we will add another age division) |
| PreTeens/Teens: 13-15 |
| Brackets |
| 4+ Competitors: Single Elimination |
| 3 Competitors: Round Robin |
| 2 Competitors: Best 2 out of 3 |
| Brackets will be arranged to pair kids with competitors close in weight and belt rank whenever possible. No matchups will exceed a 10 lb weight difference or a one-belt rank difference. |
| Points & Regulations |
| https://ibjjf.com/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBbTRaIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19–c53798f1b94f5ebc202702cb44e9428a7606a19b/2024JUN_IBJJF_Rules_EN.pdf |
Sudden death sumo challenge! Push your opponent off the platform into the foam pit. First competitor to touch foam loses.
