TOTAL VOLUME:
$134.1b
24H VOL:
$133,388,117
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,436,095,462
405,232
Markets across
30,526
events
MATCHED EVENTS:
2,693
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 18, 11:14 PM EST
Kalshi
This market tracks the outcome and fight dynamics of the UFC Fight Night matchup between Kamaru Usman and Dricus Du Plessis scheduled for July 18, 2026. The aggregated consensus across Polymarket and Kalshi shows 100.0% probability for the Over/Under 2.5 Rounds outcome, reflecting strong market agreement on fight duration expectations. Resolution will be determined by official UFC records. Watch the fight conclusion on July 18, 2026, to see whether the bout resolves above or below the 2.5-round threshold.
This market will resolve to "Kamaru Usman" if Kamaru Usman is officially declared the winner of the fight against Dricus Du Plessis at UFC Fight Night: Du Plessis vs. Usman, scheduled for July 18, 2026. It will resolve to "Dricus Du Plessis" if Dricus Du Plessis is officially declared the winner. If the fight is declared a draw or technical draw, ruled a No Contest, not scored, canceled, or postponed beyond August 1, 2026, this market will resolve "50-50." The resolution source for this market will be official information from the UFC.
Resolution depends on the official fight outcome. If the fight is postponed or delayed, the market remains open and closes after the rescheduled bout concludes within two weeks. Ties or no-contests resolve at 50/50 for both fighters. If the fight is cancelled or rescheduled beyond two weeks, the market resolves to a fair price per standard rules.
Prediction markets and sportsbooks price fights differently because they operate under distinct mechanisms. Sportsbooks set odds to balance their book and manage risk, often incorporating sharp-money signals but ultimately controlling the line for profitability. Prediction markets, by contrast, derive prices from continuous trader supply and demand, reflecting aggregate belief without a house edge. This market typically shows tighter spreads and faster reaction to breaking news than traditional sportsbooks, though sportsbook lines can occasionally lead if they attract early professional action before prediction market traders react.
Fighter injury reports, training camp updates, and weigh-in results typically drive sharp repricing in the days leading up to fight night. Social media sentiment, analyst commentary, and betting action from known professional bettors can shift odds quickly. Late-breaking news such as corner changes, weight-cut complications, or fighter statements may trigger volatility. On fight night itself, early round performance, visible damage, and crowd reaction often cause rapid swings as traders reassess win probability in real time. Monitor official MMA media and fighter social accounts for catalysts that could reshape this market's trajectory.