Rainn Guerrero Record: 6-2-0

Building a winning run

Guerrero settled into a groove through 2022. After a decision over Olivia Beeskau, she stepped up to face the experienced Christina Marks at Fury FC 71 in November 2022, taking a decision over the veteran to extend her momentum. That stretch positioned her for a major opportunity, and in September 2023 she landed a spot on Dana White's Contender Series, the high-profile platform that has launched countless UFC careers.

Contender Series test and a marquee win

The Contender Series proved a hard night. Guerrero met the dangerous Dione Barbosa and was caught in a first-round armbar, with a planned bout against Corinne Laframboise around that period not materializing. She answered the setback with the biggest win of her career: in May 2024, she defeated former UFC fighter Pearl Gonzalez by decision at XFC: Detroit Grand Prix 2, outpointing the experienced 11-5 veteran to move to 6-2.

Fighting style

Guerrero is a volume-and-pace fighter whose bread and butter is winning rounds – four of her six wins have come by decision, reflecting a game built on cardio, output, and ring generalship rather than one-punch power. She has shown she can finish, with a TKO and a rear-naked choke on her ledger, but her identity is a relentless, well-conditioned pressure style that wears opponents down. The clearest area to attack has been her defensive grappling, exposed in the first-round armbar loss to Barbosa. At her best, she is a hard-working, hard-to-outpace operator who banks rounds and pushes a steady tempo.

Career highlights

• Win over a former UFC fighter — decisioned 11-5 veteran Pearl Gonzalez at XFC: Detroit Grand Prix 2, the signature victory of her career.
• Contender Series competitor — earned a spot on Dana White's Contender Series, the sport's premier proving ground for prospects.
• Finishing range — owns both a TKO and a first-round rear-naked choke among her wins, showing she can end fights as well as outpoint opponents.