Submission Underground 28 took place Sunday, October 31, 2021 with 10 fights in Portland, Oregon.

Submission Underground 26 takes place on August 13, 2021 in Portland, Oregon.

Submission Underground 25 took place Sunday, July 18, 2021 with 9 fights in Portland, Oregon.

Submission Underground 29 took place Sunday, December 12, 2021 with 9 fights in Portland, Oregon.

Mason Fowler will be defending his belt for the third time against Bellator heavyweight champion and former light heavyweight champion Ryan Bader. A former NCAA wrestling standout, Bader presents a different challenge than previous defenses. Also on the card, Craig Jones will face Vinny Magalhaes, who are both decorated Brazilian Jiu-Jitsu practitioners, along with former judo Olympic gold medalist Satoshi Ishii. Fowler won all of his previous defenses in the overtime ruleset.

UFC FIGHT PASS Invitational Returns to UFC APEX with Four-Team Elimination Event Featuring Jorge Masvidal’s iKon MMA, Anthony Pettis Fighting Championship, Urijah Faber’s A1 Combat, and James Krause’s Fighting Alliance Championship $25,000 CASH Prize Awarded to Winning Team Competition to Stream Live and Exclusively on UFC FIGHT PASS On Sunday, July 3, at 5:00 p.m. ET / 2:00 p.m. PT The UFC FIGHT PASS INVITATIONAL 2 will also feature individual matches between notable MMA athletes and stars of the BJJ world. UFC featherweight Andre Fili is set to face second degree BJJ black belt Shane Shapiro, while second degree BJJ black belt and IBJJF black belt champion Jerry Shapiro will square off against current No. 5-ranked UFC flyweight Brandon Royval. In a thrilling women’s match, UFC veteran Roxanne Modafferi takes on BJJ black belt Michele Oliveira.

UFC Fight Pass Invitational 3, a pro-grappling event, took place on Thursday, December 15, 2022 at UFC Apex in Las Vegas with an exciting prize of $25,000 in the line.

Craig Jones Invitational: Day 1 was an international submission grappling tournament that took place on August 16, 2024 at the Thomas & Mack Center in Las Vegas, Nevada in the United States.

The submission grappling event created by Chael Sonnen, Submission Underground, returns for its 19th event and the final for 2020 with a barn burner of jiu-jitsu matches from Oregon. The line-up is peppered with UFC fighters including Donald Cerrone, Rafael dos Anjos, Felicia Spencer and Anthony “Rumble” Johnson amongst former fighters and Bellator standouts.

Submission Underground 18 took place Sunday, October 4, 2020 with 10 fights in Portland, Oregon.