Justin Gaethje fights the way a certain kind of dad builds a shed -- loudly, with every available tool, taking damage to give damage, and producing something memorable in the process. The Arizona-raised former NCAA Division I wrestler abandoned conventional wisdom to become the most terrifying stand-up fighter in lightweight history.
In January 2026, Gaethje won the UFC Interim Lightweight Championship by beating Paddy Pimblett at UFC 324, putting the division on notice that the Highlight is still operating at the highest level. With Topuria holding the undisputed title, Gaethje is the mandatory challenger and the fight everyone wants to see.
Gaethje has fought for the UFC Lightweight Championship three times now -- losing to Khabib Nurmagomedov and Islam Makhachev in previous shots. The interim title victory is his latest statement that he deserves a fourth shot at gold. His legacy is as the most entertaining lightweight of his era -- pure heart, elite-level striking, and underrated wrestling.
- UFC Interim Lightweight Champion (beat Paddy Pimblett, UFC 324, Jan 2026)
- Former UFC Interim Lightweight Champion (defeated Tony Ferguson)
- Won BMF title against Michael Chandler at UFC 268
- WSOF Lightweight Champion before UFC career
- KO'd Max Holloway at UFC 300 in legendary finish
- All-American wrestler at Northern Arizona University
- 01Leg kick accumulation (the calf kick that ended McGregor)
- 02Right hand over the top
- 03Body kick to right hand combination
- 04Short right uppercut in the pocket
- 05Overhand left in counter
- 06Front kick to the face off the retreat
Gaethje is the most fun fighter in the UFC to watch with new fans. Interim champ again at 36. Fights like he's got something to prove every single time. Pure heart. The kind of fighter that makes you care about the sport.