Polymarket is buzzing with action for the UFC Fight Night main event featherweight showdown between Arnold Allen and Melquizael Costa. The market has a 24-hour trading volume of $1,564,772, with liquidity at $610,310 and a total cumulative volume of $1,690,900.23. Current odds show Arnold Allen at 100.0% and Melquizael Costa at 0.1%.
The page states that this market will settle based on the official result of the UFC Fight Night: Allen vs. Costa on May 16, 2026: If Arnold Allen is officially declared the winner, the market settles at "Arnold Allen"; if Melquizael Costa wins, it settles at "Melquizael Costa". In the case of a draw, technical draw, no result, no score, cancellation, or if the fight is postponed past May 30, 2026, it will settle at "50-50". The market's end date is May 17, 2026.
For prediction market users, the focus here is usually not just on the outcome itself but also on whether the trading volume, liquidity, and odds shifts remain concentrated in one direction as the fight approaches.
The page states that this market will settle based on the official result of the UFC Fight Night: Allen vs. Costa on May 16, 2026: If Arnold Allen is officially declared the winner, the market settles at "Arnold Allen"; if Melquizael Costa wins, it settles at "Melquizael Costa". In the case of a draw, technical draw, no result, no score, cancellation, or if the fight is postponed past May 30, 2026, it will settle at "50-50". The market's end date is May 17, 2026.
For prediction market users, the focus here is usually not just on the outcome itself but also on whether the trading volume, liquidity, and odds shifts remain concentrated in one direction as the fight approaches.