This event is for the CBB game between VCU Rams and Illinois Fighting Illini on March 21 at 12:00 PM ET.
If the game is postponed, this market will remain open until the game has been completed.
If the game is canceled entirely, with no make-up game, this market will resolve 50-50.
Polymarket and Kalshi use fundamentally different market structures for the same game. Polymarket offers moneyline, spread, and over/under markets with consistent thresholds, while Kalshi offers only binary spread-outcome markets with specific point-differential conditions that do not align with standard betting conventions.
Hero Tip:
If you trade on both platforms, note that Polymarket's spread markets (e.g., Illinois -10.5 resolves YES if Illinois wins by 11+) follow standard sportsbook logic, whereas Kalshi's markets use non-standard thresholds (e.g., 'Illinois wins by more than 1.5 points' is a YES outcome). Arbitrage opportunities may exist if the same underlying game outcome is priced differently across platforms due to these structural differences.
Critical Divergence Points:
Polymarket: Distinct stance: Polymarket offers three market types (moneyline, spread, over/under) with standard sportsbook thresholds. Spread markets resolve YES if Illinois wins by N+1 points (e.g., -10.5 spread resolves YES if Illinois wins by 11 or more). Over/under markets resolve YES if combined score meets or exceeds the stated threshold plus one (e.g., O/U 153.5 resolves YES at 154+). Quote: 'This market will resolve to Illinois Fighting Illini if the Illinois Fighting Illini win the game by 11 or more points' (for -10.5 spread).
Kalshi: Distinct stance: Kalshi offers only binary spread-outcome markets using non-standard point-differential thresholds that do not correspond to traditional spread betting. Markets resolve YES if either VCU wins by more than X points or Illinois wins by more than Y points, with thresholds including 1.5, 2.5, 4.5, 7.5, 10.5, 13.5, 16.5, 19.5, 22.5, and 25.5 points. Quote: 'If Illinois wins by more than 1.5 points in the VCU at Illinois men's college basketball game originally scheduled for Mar 21, 2026, then the market resolves to Yes.'
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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