Polymarket defines three mutually exclusive binary markets (Burnley win, Brighton win, Draw), where exactly one resolves YES. Kalshi defines three separate YES/NO markets that can all resolve YES simultaneously if any outcome occurs, creating a logical contradiction and making Kalshi's market structure fundamentally unresolvable.
Hero Tip:
Do not trade Kalshi markets in this group. Kalshi's structure violates basic market logic: all three outcomes cannot occur at once, yet all three markets are written to resolve YES for their respective outcomes. This creates ambiguity about whether you are betting on a single outcome or a portfolio. Polymarket's three binary markets are logically sound and mutually exclusive. Trade Polymarket only.
Critical Divergence Points:
Polymarket: Aligned with standard sports betting logic: Polymarket offers three mutually exclusive binary markets where exactly one outcome (Burnley win, Brighton win, or Draw) will occur and resolve YES, while the other two resolve NO. The resolution source is 'official statistics of the event as recognized by the governing body or event organizers' with a 2-hour fallback to credible reporting. All three markets reference '90 minutes of regular play plus stoppage time' and handle postponement identically (remain open until completion) and cancellation identically (resolve NO, except Draw resolves YES if canceled).
Kalshi: Outlier: Kalshi presents three separate markets framed as independent YES/NO propositions: 'If Brighton wins... then resolves to Yes', 'If Burnley wins... then resolves to Yes', and 'If Tie wins... then resolves to Yes'. This structure is logically incoherent because exactly one outcome will occur, yet all three markets are written to resolve YES for their respective outcomes, meaning traders cannot determine whether they are betting on a single outcome or a portfolio. No resolution source, postponement rules, or cancellation clause is specified. This violates fundamental market design principles and makes the market unresolvable.
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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