Overview
Who's Number One (WNO) is a premier professional no-gi grappling event series created by FloGrappling. Designed to showcase elite talent in modern submission grappling, it features superfight-style matchups, championship belts, and a ruleset built to encourage continuous action and submission-oriented competition. The promotion has become one of the most visible platforms in the sport, highlighting rising talent and established champions alike.
The matches typically run under a submission-only–inspired ruleset with judges’ criteria based on aggression, positional dominance, and submission threats. With professionally produced broadcasts, athlete spotlights, and consistent high-level matchups, Who's Number One has grown into one of the most influential stages for no-gi grapplers looking to build international recognition.