O'Neill vs Moura Prediction 19 September 2026
💣 The women’s flyweight division at UFC 331 will feature a high-stakes showdown as Scotland’s Casey O’Neill squares off against Brazil’s Eduarda Moura. O’Neill is determined to cement her triumphant return to the elite ranks after a lengthy layoff and a string of impressive victories. Meanwhile, Moura heads to Los Angeles eager to bounce back and redeem herself following recent setbacks against top-tier opponents.
Casey O'Neill Player Overview
The 28-year-old Scot Casey O’Neill enters this matchup boasting a solid professional record of 14 wins and 3 losses. After navigating a challenging stretch in her career, O’Neill took time off for a full reset and returned to the Octagon as a far more seasoned fighter. In March 2026, she delivered an impressive performance against Gabriella Fernandez, earning a convincing stoppage victory and reaffirming her credentials as a contender for the division’s top spots. O’Neill’s greatest strengths remain her tremendous cardio, relentless striking pace, and aggressive top control on the ground. The Scot never takes her foot off the gas, systematically wearing down her opponents with constant pressure throughout every round.
Match Results: Casey O'Neill
Eduarda Moura Player Overview
The 29-year-old Brazilian Eduarda Moura boasts a professional record of 13 wins and 2 losses, and for a long time was regarded as one of the league’s brightest prospects. However, her momentum stalled as she began facing tougher opponents: in her last four bouts, she suffered significant defeats against Denise Gomes and Kon Wan. Moura is known for her strong wrestling background and impressive physicality, always looking to take the fight to the mat as quickly as possible. Yet, in longer contests, she often struggles with cardio, and her striking defense tends to falter under sustained pressure. Heading into the bout against O’Neill, Moura will be highly motivated to reclaim her standing in the division.
Match Results: Eduarda Moura
⭐ Editorial Prediction
Both fighters are remarkably resilient and possess outstanding survival skills when the going gets tough inside the Octagon. Moura will look to press the action against the cage early and hunt for a takedown, but O’Neill’s solid defensive skills should keep the Brazilian from securing a quick finish. On the feet, Casey is likely to stick to a measured, combination-heavy approach, steering clear of reckless exchanges to minimize unnecessary risk. Eduarda’s physicality and her ability to tie up opponents in the clinch are bound to slow the pace at times. With two evenly matched athletes squaring off, this bout is highly likely to go the distance. That’s why our pick is over 2.5 rounds.
