The betting landscape for the UFC 321 heavyweight title fight between Tom Aspinall and Ciryl Gane has demonstrated clear market trends throughout fight week, with oddsmakers steadily increasing confidence in the British champion while public money has heavily backed the favorite in what represents one of the most lopsided betting splits of recent UFC pay-per-view events.
UFC 321Opening Line and Initial Movement
When UFC CEO Dana White announced the UFC 321 main event in late July 2025, sportsbooks released opening lines that positioned Aspinall as a substantial but not overwhelming favorite. Some, including best bitcoin sportsbooks, established the initial market at Aspinall -350 and Gane +285, reflecting confidence in the champion while still acknowledging the challenger’s technical striking credentials and previous championship experience.