This market will resolve to "Yes" if Mark Vologdin defeats John Castaneda at UFC Fight Night: Burns vs. Malott, scheduled for April 18, 2026, by KO or TKO, including referee stoppage, doctor stoppage, or corner stoppage. Otherwise, it will resolve to "No." If the fight ends in a draw or by disqualification (either fighter), it will resolve "No." If the bout is ruled a No Contest, not scored, canceled, or postponed beyond May 2, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.