Polymarket defines three mutually exclusive binary markets (Milan win, Udinese win, draw), where exactly one resolves YES. Kalshi defines three independent markets that can ALL resolve YES simultaneously if their respective outcomes occur, creating a logical contradiction: both platforms cannot simultaneously resolve consistently for the same match outcome.
Hero Tip:
Do not assume Polymarket and Kalshi will settle identically. On Polymarket, exactly one of the three markets resolves YES. On Kalshi, all three markets can resolve YES at once (e.g., if Milan wins, the Milan market resolves YES, but the Udinese and Tie markets resolve NO). Verify your position against each platform's settlement rules independently before trading.
Critical Divergence Points:
Polymarket:
Outlier: Polymarket structures three mutually exclusive binary markets where only one outcome can occur per match. Each market (Milan win, Udinese win, draw) resolves YES or NO based on the single match result, ensuring exactly one market resolves YES and two resolve NO. Key quote: 'If AC Milan wins, this market will resolve to Yes. Otherwise, this market will resolve to No' (applied identically to all three markets, making them mutually exclusive).
Kalshi:
Outlier: Kalshi defines three independent conditional markets where each resolves YES if its named outcome occurs, allowing all three to resolve YES simultaneously if the match completes (which is logically impossible for a single match). Key quote: 'If Milan wins...then the market resolves to Yes. If Udinese wins...then the market resolves to Yes. If Tie wins...then the market resolves to Yes' (three independent YES conditions for one match).
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.