Which fighter wore one boxing glove at UFC 1?

Art Jimmerson wore one boxing glove at UFC 1. The professional boxer entered his quarterfinal bout against Royce Gracie with a glove on his lead hand and no glove on the other, a sight that became one of the event’s most memorable images.

Jimmerson was a skilled conventional boxer, but UFC 1 allowed fighters from different disciplines to compete with minimal restrictions. Gloves were permitted but not mandatory, and there were no modern requirements for standardized MMA gloves. Jimmerson’s choice appears to have been intended to protect his punching hand while leaving the other hand available for grappling or balance.

The experiment did not work against Gracie’s Brazilian jiu-jitsu. Gracie took Jimmerson to the ground, secured the mount, and controlled him so effectively that the boxer had only one free arm. Jimmerson conceded the match after roughly two minutes and eighteen seconds, ending his MMA career at 0–1.

The common mistake is to remember Jimmerson simply as the boxer who lost at UFC 1. His unusual equipment choice also earned him the lasting nickname “One Glove,” and it illustrated how unprepared early competitors were for mixed-rules combat.