Polymarket and Kalshi use fundamentally incompatible resolution logic for the same match. Polymarket offers three mutually exclusive binary markets (Hull win, Draw, Coventry win) where exactly one resolves YES, while Kalshi offers a single market that resolves YES for all three possible outcomes, making it logically impossible to distinguish between them.
Hero Tip:
Do not trade across these platforms assuming equivalent exposure. On Polymarket, you are betting on one specific outcome among three mutually exclusive options. On Kalshi, the single market resolves YES regardless of match result, making it a certainty bet rather than a true outcome prediction. This is a critical structural mismatch — verify your platform choice before committing capital.
Critical Divergence Points:
Polymarket: Distinct stance: Polymarket offers three separate binary markets where exactly one outcome (Hull win, Draw, or Coventry win) will resolve YES and the other two resolve NO. The description states 'If Hull City AFC wins, this market will resolve to Yes. Otherwise, this market will resolve to No' for the Hull market, and similar mutually exclusive logic for Draw and Coventry markets. This creates a true three-way outcome prediction structure.
Kalshi: Distinct stance: Kalshi offers a single market with three resolution conditions that all trigger YES: 'If Tie wins...then the market resolves to Yes. If Hull wins...then the market resolves to Yes. If Coventry wins...then the market resolves to Yes.' This means the market resolves YES for every possible match outcome, rendering it a certainty bet with no discriminative power between outcomes.
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.
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