TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 11, 5:25 PM EST
Kalshi
This market concerns whether the UFC 329 fight between Alessandro Costa and Cody Durden, scheduled for July 11, 2026, will last the full duration without an early stoppage. A fight "goes the distance" when neither fighter is knocked out, submitted, or stopped by the referee before the final bell.
If the Alessandro Costa vs. Cody Durden 329 fight originally scheduled for Jul 11, 2026 goes the distance, then the market resolves to Yes.
Prediction market odds and sportsbook odds often diverge because they reflect different trader bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one aggregate the beliefs of traders risking real capital on the outcome. This market's odds can move faster in response to breaking news—such as fighter injuries or training updates—since traders update their positions instantly. Comparing the two can reveal where smart money sees value relative to traditional betting lines.
On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares representing yes or no outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each share reflects the collective probability estimate: a share trading at 65 cents implies roughly a 65% chance of that outcome occurring. As new information emerges or trader sentiment shifts, bids and asks adjust, moving the market price up or down. This continuous price discovery process ensures the odds stay aligned with real-time expectations about whether the fight will go the distance.
This market resolves around Jul 12, 2026, once the Costa vs. Durden fight concludes and the result is verifiable from credible public sources. The outcome hinges on whether the bout reaches a decision—meaning all three rounds are completed and judges render a verdict—or ends early via knockout, submission, or disqualification. Traders holding yes shares win if the fight goes the full distance; those holding no shares win if it ends before the final bell.
Several catalysts could shift odds significantly before the fight. Fighter injuries, training camp updates, or official weight-miss announcements often trigger sharp moves, as do changes in opponent matchups or venue details. Weigh-in results and fighter conditioning reports in the days leading up to the bout can also sway traders' expectations about fight pace and durability. Media narratives around fighting styles—such as reports of improved wrestling or cardio—may influence whether bettors expect an early finish or a grinding decision. Real-time commentary during the fight itself will drive final adjustments as traders react to visible fatigue or damage.