TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 12, 11:09 PM EST
Kalshi
This market tracks the outcome of the Jai Opetaia vs. Noel Mikaelian cruiserweight boxing match, part of the Zuffa Boxing event on September 12, 2026. Currently, the consensus probability across Polymarket and Kalshi indicates a 100.0% chance of Zuffa Boxing: Opetaia vs. Mikaelian (Cruiserweight, Main) winning, as determined by official results reported on https://www.ufc.com/. The market will resolve based on which fighter is officially declared the winner, with potential implications for outcomes defined beyond September 26, 2026, as detailed in the resolution rules. Keep a close watch on the fight itself, scheduled for September 12, 2026, to see how the bout unfolds.
This market will resolve to "Opetaia" if Jai Opetaia is officially declared the winner of the fight against Noel Mikaelian at Zuffa Boxing: Benn vs. Garcia, scheduled for September 12, 2026. It will resolve to "Mikaelian" if Noel Mikaelian 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 September 26, 2026, this market will resolve "50-50." The resolution source for this market will be official information from https://www.ufc.com/.
If Opetaia J. wins the Opetaia J. vs Mikaelyan N. boxing match originally scheduled for Sep 12, 2026, then the market resolves to Yes. If Mikaelyan N. wins the Opetaia J. vs Mikaelyan N. boxing match originally scheduled for Sep 12, 2026, then the market resolves to Yes.
Prediction market odds, like those seen on Polymarket and Kalshi, often reflect a wisdom-of-the-crowd effect, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set odds based on their own models and aim to balance action on both sides, while prediction markets allow participants to freely express their beliefs. This can lead to discrepancies, especially when public sentiment diverges from expert opinion. For this market, the implied probabilities from the prediction markets may differ from those offered by sportsbooks due to varying information sources and the incentive structures of each venue. Examining both can provide a more nuanced understanding of potential outcomes.
Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Differences in pricing between Polymarket and Kalshi for the Opetaia vs. Mikaelian fight can arise from several factors. Each platform attracts a different user base with potentially varying levels of expertise and access to information. Trading volume also plays a role; lower volume on one platform can lead to greater price volatility and divergence. Furthermore, the specific mechanisms for trading and order execution on each platform can influence price discovery. While both markets aim to predict the same event, these differences in participation and mechanics contribute to the observed price discrepancies, offering traders opportunities for arbitrage.