The heavyweight division's volatility, driven by Tom Aspinall's extended recovery from double eye surgery after his no-contest against Ciryl Gane, has created a wide-open race for the title by December 2026. Traders see a tight cluster of contenders—led by Serghei Spivac, Sergei Pavlovich, and Jailton Almeida—each around 47-48% implied probability because recent form, ranking climbs, and scheduled bouts like Gane's interim title fight versus Alex Pereira on June 14 offer multiple realistic paths to the belt. Spivac's unanimous decision win over Ante Delija and Pavlovich's upcoming matchup underscore the division's depth and knockout-heavy style, while Aspinall's uncertain return timeline limits any single fighter's dominance in the crowd-sourced pricing. This competitive balance keeps probabilities bunched as no one holds a decisive edge heading into the back half of the year.