Fight Night: Vieira vs Bryczek — Robert Bryczek

Kalshi — primary rule

If Robert Bryczek wins the Vieira vs Bryczek professional MMA fight originally scheduled for Sep 26, 2026, then the market resolves to Yes.

Polymarket — resolution criteria

This market will resolve to "Robert Bryczek" if Robert Bryczek is officially declared the winner of the fight against Rodolfo Vieira at UFC Fight Night: Rosas Jr. vs. Barcelos, scheduled for September 26, 2026. It will resolve to "Rodolfo Vieira" if Rodolfo Vieira is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond October 10, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.