Polymarket defines three mutually exclusive binary markets (Marseille win, draw, Metz win) where exactly one resolves YES, while Kalshi defines three independent YES-only markets that all resolve YES simultaneously regardless of match outcome, creating a logical contradiction.
Hero Tip:
Do not trade across both platforms on this event. Polymarket markets are standard mutually exclusive outcomes (only one can win). Kalshi markets appear to be structured as three separate affirmations of the same match result, meaning all three Kalshi markets will resolve YES to the same outcome. Clarify Kalshi's intent before trading—if all three markets truly resolve YES for any result, this is a critical data integrity failure.
Critical Divergence Points:
Polymarket:
Distinct stance: Polymarket structures three mutually exclusive binary markets where exactly one outcome (Marseille win, draw, or Metz win) will resolve YES and the other two resolve NO. Each market has independent resolution logic tied to the match result: 'If Olympique de Marseille wins, this market will resolve to Yes. Otherwise, this market will resolve to No' for the Marseille market; 'If the game ends in a draw, this market will resolve to Yes. Otherwise, this market will resolve to No' for the draw market; and 'If FC Metz wins, this market will resolve to Yes. Otherwise, this market will resolve to No' for the Metz market.
Kalshi:
Distinct stance: Kalshi defines three markets using identical resolution language where each market resolves YES if its specified outcome occurs: 'If Marseille wins...then the market resolves to Yes,' 'If Metz wins...then the market resolves to Yes,' and 'If Tie wins...then the market resolves to Yes.' This structure implies all three markets resolve YES simultaneously for the actual match result, contradicting the standard mutually exclusive outcome model.
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.