Petr Yan holds the leading 57.5% implied probability to remain UFC bantamweight champion through the end of 2026, driven by his December 2025 unanimous decision victory over Merab Dvalishvili at UFC 323 that reclaimed the title and snapped the Georgian’s 14-fight win streak. Dvalishvili sits at 40.5% as the clear top challenger entering their October 24 trilogy bout at UFC 333, where the rested former champion seeks to even the head-to-head series after three successful 2025 title defenses. The market’s heavy concentration on these two reflects their sustained dominance, stylistic familiarity, and recent form, while the sub-2% odds on Song Yadong, Sean O’Malley, Umar Nurmagomedov, and others underscore limited near-term pathways for additional contenders amid the division’s focus on the ongoing rivalry.