Less than a month after improving to 3-0 in MMA, Mackenzie Dern returned to the jiu-jitsu mats at the IBJJF’s Rio Falls at the Tijuca Tenis Club gymnasium Saturday night in Rio de Janeiro, and things didn’t go her way.

Dern suffered her first submission loss in years.

Facing three-time jiu-jitsu world champion Bia Mesquita in the absolute final, Dern was submitted in less than two minutes, tapping to a choke. Mesquita also won the gold medal in her weight category.