Stony Brook vs. Ball State odds: Kalshi vs Polymarket
Sat, Sep 12, 2026, 2:00 PM ET · college football games · $44 traded in 24h across both venues.
Ball State: Kalshi 87¢ vs Polymarket 87¢, -0.5 pp
Mid prices. A price is the market's probability: 87¢ means 87%. The gap is Kalshi minus Polymarket in percentage points.
Two separate exchanges, two accounts. Links may carry a referral code, which never changes what is shown. Disclosures.
-3.49¢ per $1, after fees
Buy Ball State @ Polymarket 89¢, Stony Brook @ Kalshi 13¢
All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap |
|---|---|---|---|
| Ball State | 86¢ / 87¢ | 85¢ / 89¢ | -0.5 pp |
| Stony Brook | 11¢ / 13¢ | 11¢ / 15¢ | -1.0 pp |
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.