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 11, 5:35 PM EST
Kalshi
This market focuses on how the Alessandro Costa versus Cody Durden UFC 329 fight on July 11, 2026 will finish, regardless of which fighter wins. Possible outcomes include knockout/technical knockout/disqualification, submission, decision, or draw/no contest.
The Alessandro Costa vs. Cody Durden fight scheduled for July 11, 2026 resolves based on the method of finish, independent of which competitor prevails. If either fighter wins by knockout, technical knockout, or disqualification, that outcome resolves affirmatively. If either fighter wins by submission, that outcome resolves affirmatively. If the fight goes to a judges' decision with a winner declared, that outcome resolves affirmatively. Finally, if the fight ends in a draw or is declared a no contest, that outcome resolves affirmatively. These four method categories are mutually exclusive and collectively exhaustive, with exactly one resolving based on the actual fight result.
Prediction market odds and sportsbook odds often diverge because they serve different purposes and audiences. Sportsbooks set odds to balance action and manage risk, incorporating their own margins. Prediction markets like this one aggregate trader beliefs through continuous price discovery, typically reflecting longer-term consensus on outcomes. For finish methods specifically, sportsbooks may emphasize high-volume bets on decision or knockout, while prediction traders might weight submission probability differently based on technical analysis of fighter matchups. Neither is inherently more accurate; they represent different information pools. Comparing both can reveal where smart money sees value relative to traditional sports betting markets.
On Kalshi, this market is priced through continuous order-book trading, where buyers and sellers submit bids and offers for each finish method outcome. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders stake capital on their preferred outcome, and the equilibrium price reflects the collective probability estimate. Each finish method—decision, knockout, submission, disqualification—trades as a separate contract, with prices ranging from near-zero to near-100 cents. As new information emerges (fighter injury reports, weigh-in results, training updates), traders adjust positions, moving prices dynamically. The platform's matching engine ensures transparent price discovery without intermediaries setting odds unilaterally.
This market resolves around Jul 12, 2026, once the Costa vs. Durden bout concludes and the finish method is verified against credible public sources. The outcome is determined by how the fight officially ends—whether by referee decision, knockout, submission, or disqualification. Traders holding contracts on the correct finish method receive their payout when the result is confirmed. Until that point, prices may shift based on pre-fight developments, fighter statements, or updated odds from other venues. Resolution is binary and final once the event is complete and publicly reported.
Several catalysts can shift odds in this market before Jul 12, 2026. Fighter injury announcements or withdrawal news would dramatically reprrice finish probabilities. Weigh-in results, training footage leaks, or coaching changes can signal striking or grappling readiness, moving knockout or submission odds. Betting line movement at major sportsbooks often precedes prediction market repricing as sharp money enters. Recent fight footage, analyst commentary, or updated fighter rankings may alter trader conviction. Venue or rule changes, referee assignments, or last-minute opponent adjustments also influence finish method expectations. Social media sentiment and betting volume spikes can accelerate price moves as retail and professional traders react to breaking news.