Submission Underground 18 took place Sunday, October 4, 2020 with 10 fights in Portland, Oregon.
Mason Fowler
Self
Vinny Magalhães
Kendall Reusing
Leah Taylor
William Tackett
Gabriel Checco
Keith Kirkorian
Rafael Domingos
Kody Steele
Bryan Nuro
Hunter Colvin
Emil Fischer
Beautiful Disaster
2023
Never Back Down
2008
Gladiator Underground
2025
Never Back Down: Revolt
2021
Undisputed III: Redemption
2010
Never Back Down 2: The Beatdown
2011
Unleashed
2005
...All the Marbles
1981
The Quest
1996
Never Back Down: No Surrender
2016
Mortal Kombat Legends: Battle of the Realms
In Hell
2003
