Chicago Cubs vs. Cincinnati Reds odds, Sep 20: Kalshi vs Polymarket
Chicago Cubs 56% on Kalshi, 55% on Polymarket. Both exchanges' prices for every outcome of Chicago Cubs vs. Cincinnati Reds, Sep 20, $39 traded in 24 hours, updated every 45 seconds.
Sun, Sep 20, 2026, 1:40 PM ET · MLB games · $39 traded in 24h across both venues
Chicago Cubs: Kalshi $0.56 vs Polymarket $0.55, +$0.01
Mid prices, in dollars on a contract that pays $1 if it happens: $0.56 is a 56% chance. The gap is Kalshi minus Polymarket.
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All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap, + = Kalshi higher |
|---|---|---|---|
| Chicago Cubs | $0.55 / $0.58 | $0.54 / $0.56 | +$0.01 |
| Cincinnati Reds | $0.39 / $0.46 | $0.44 / $0.46 | −$0.02 |
Price history, last 3 days
How this is matched
Games are matched across the two exchanges by league, team codes and date. Polymarket prices come from its live order book, Kalshi from its public API. Refreshed every 45 seconds.
What this is not
Read-only. Nothing here places or routes orders and nothing is advice. Fees, slippage and the time it takes to move money between venues are not in these numbers.