Submission Underground 11 took place Sunday, February 23, 2020 with 3 fights at Roseland Theater in Portland, Oregon.

Submission Underground 13 took place Sunday, April 26, 2020 with 10 fights in Portland, Oregon

Submission Underground 8 took place Sunday, May 12, 2019 with 6 fights at Roseland Theater in Portland, Oregon.

Submission Underground 14 took place Sunday, May 31, 2020 with 10 fights in Portland, Oregon.