WSOF's “Who’s The Toughest?” series kicked off at The Theater at Madison Square Garden where 2 Marine Corp veterans Shane Kruchten and Jeremy Mahon battled in a catchweight fight on New Year's Eve.

Jon Fitch vs. Jake Shields
WSOF 34 - Gaethje vs. Firmino

Vagab Vagabov vs. Bruno Santos
WSOF 34 - Gaethje vs. Firmino

Andre Harrison vs. Bruce Boyington
WSOF 34 - Gaethje vs. Firmino

Marlon Moraes vs. Josenaldo Silva
WSOF 34 - Gaethje vs. Firmino

Justin Gaethje vs. Luiz Firmino
WSOF 34 - Gaethje vs. Firmino

Jon Fitch vs. Jake Shields
WSOF 34 - Gaethje vs. Firmino

Tom Marcellino vs. Matt Denning
WSOF 34 - Gaethje vs. Firmino

Wagaba Vahabov vs Brian "Pretty Boy" Grinnell
WSOF 23 - Gaethje vs. Palomino 2

Dave Branch vs Ted Holder
WSOF 23 - Gaethje vs. Palomino 2

Chris Gutierrez vs. Timur Valiev
WSOF 33 - Gaethje vs. Dugulubgov

Timur "Lucky" Valiev vs Tito Jones
WSOF 23 - Gaethje vs. Palomino 2

Josh Cavan vs Chris Hocum
WSOF 29 - Gaethje vs. Foster
Main Card Fights

Justin Gaethje vs Gesias Cavalcante Fight Video WSOF 2 - Arlovski vs. Johnson

Ian Heinisch vs Tyler Vogel
WSOF 29 - Gaethje vs. Foster
Preliminary Fights