Big Jiu-Jitsu stars have already signed in to compete for some of the $30K bounty the IBJJF is offering to division winners.
Four-time world champion Leandro Lo is in; roosterweight runner up at the 2015 Worlds, João Miyao, is also in after dropping out of the 2015 ADCC roster.
Vitor Oliveira, Tanner Rice, Eliot Kelly, Osvaldo Moizinho, Arnaldo Maidana, Marcelo Mafra, Lucas Rocha are other names already signed in.
If you are thinking of competing, know that you have less than 24 hours to register.
The final deadline is midnight tonight.
Adult black belt athletes need 10pts on the IBJJF ranking to register.
All other divisions and age groups are free to register.
Click here to register now.
Here are the money prizes being offered.