CA Osasuna vs. RCD Espanyol de Barcelona odds: Kalshi vs Polymarket
Sat, Sep 12, 2026, 10:15 AM ET · La Liga games · $345 traded in 24h across both venues.
CA Osasuna: Kalshi 48¢ vs Polymarket 47¢, +0.5 pp
Mid prices. A price is the market's probability: 48¢ means 48%. 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.
-4.95¢ per $1, after fees
Buy CA Osasuna @ Kalshi 48¢, RCD Espanyol de Barcelona @ Polymarket 25¢, Draw @ Polymarket 28¢
All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap |
|---|---|---|---|
| CA Osasuna | 47¢ / 48¢ | 46¢ / 48¢ | +0.5 pp |
| RCD Espanyol de Barcelona | 24¢ / 25¢ | 24¢ / 25¢ | 0.0 pp |
| Draw | 26¢ / 28¢ | 27¢ / 28¢ | -0.5 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.