This event group covers the Saint Louis Billikens vs. George Mason Patriots men's college basketball game scheduled for March 7, 2026 at 4:00 PM ET. Markets span moneyline (winner), spread betting (Saint Louis favored by 5.5–7.5 points), and over/under totals (146.5–148.5 combined points).
Kalshi uses a granular binary spread-threshold framework (22 separate markets covering 1.5-point increments), while Polymarket uses standard sportsbook moneyline, fixed-spread, and total markets. Both resolve on final NCAA score including overtime, but the market structures and edge-case handling differ.
Hero Tip:
Use Polymarket as your primary settlement reference—it follows standard NCAA and sportsbook conventions. Kalshi's binary framework is logically sound but creates 22 overlapping markets; treat them as spread-exposure tools rather than primary settlement sources. Confirm Kalshi's cancellation protocol before March 7.
Critical Divergence Points:
Polymarket: Four distinct markets: (1) Moneyline—winner only; (2) Spread Saint Louis -7.5 (resolves Yes if SLU wins by 8+); (3) Spread Saint Louis -6.5 (resolves Yes if SLU wins by 7+); (4) Over/Under 148.5 and 146.5 (Over if combined score ≥149 or ≥147). Cancellation with no makeup resolves 50-50. Key Quote: 'This market will resolve to Saint Louis Billikens if the Saint Louis Billikens win the game by 8 or more points.'
Kalshi: 22 binary markets, each resolving Yes if a specific spread threshold is met (e.g., George Mason >1.5, >2.5, >4.5... >22.5 points; Saint Louis >1.5, >2.5, >4.5... >22.5 points). No explicit cancellation rule stated. Key Quote: 'If George Mason wins by more than 1.5 points in the Saint Louis at George Mason men's college basketball game originally scheduled for Mar 7, 2026, then the market resolves to Yes.'
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