Polymarket and Kalshi diverge on market scope and threshold definitions. Polymarket offers multiple distinct spread and over/under markets with varying thresholds, while Kalshi provides only four binary yes/no markets based on win-margin conditions, creating different settlement pathways and outcome possibilities.
Hero Tip:
If you trade these markets across platforms, note that Polymarket's granular spread markets (e.g., -1.5, -2.5) allow you to bet on specific margin outcomes, whereas Kalshi's four binary markets collapse multiple scenarios into yes/no outcomes. A 2-goal win by Salt Lake resolves differently on each platform: on Polymarket it settles multiple markets (YES on RSL -1.5, NO on RSL -2.5), but on Kalshi it settles YES on only the 1.5-goal margin market. Verify your exact position before settlement.
Critical Divergence Points:
Polymarket: Distinct stance: Polymarket offers eight separate markets covering four spread thresholds (-1.5 and -2.5 for each team) plus four over/under total-goals markets (1.5, 2.5, 3.5, 4.5). Each market resolves independently based on its specific threshold. For example, 'Spread: Real Salt Lake (-1.5)' resolves YES if RSL wins by 2+ goals, and 'Spread: Real Salt Lake (-2.5)' resolves YES only if RSL wins by 3+ goals. All markets reference 'the official final score published on mlssoccer.com' and resolve 50-50 if the game is canceled entirely.
Kalshi: Distinct stance: Kalshi offers exactly four binary yes/no markets, each tied to a single win-margin condition: Kansas City wins by more than 2.5 goals (YES/NO), Salt Lake wins by more than 2.5 goals (YES/NO), Kansas City wins by more than 1.5 goals (YES/NO), and Salt Lake wins by more than 1.5 goals (YES/NO). Each market resolves YES if its specific condition is met after 90 minutes plus stoppage time, with no explicit cancellation or postponement clause provided in the source data.
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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