Portland State vs. Oregon odds: Kalshi vs Polymarket
Fri, Sep 18, 2026, 10:30 PM ET · college football games · $2k traded in 24h across both venues.
Oregon: Kalshi 100¢ vs Polymarket 80¢, +20.0 pp
Mid prices. A price is the market's probability: 100¢ means 100%. 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.
-0.95¢ per $1, after fees
Buy Oregon @ Polymarket 99¢, Portland State @ Kalshi 1¢
All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap |
|---|---|---|---|
| Oregon | 99¢ / 100¢ | 60¢ / 99¢ | +20.0 pp |
| Portland State | 0¢ / 1¢ | 1¢ / 40¢ | -20.0 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.