US Open WTA: Coco Gauff vs Elena Rybakina odds: Kalshi vs Polymarket
Thu, Sep 10, 2026, 8:55 PM ET · started · WTA tennis matches · $2.1M traded in 24h across both venues.
Coco Gauff: Kalshi 50¢ vs Polymarket 52¢, -1.5 pp
Mid prices. A price is the market's probability: 50¢ means 50%. 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.
-3.25¢ per $1, after fees
Buy Coco Gauff @ Kalshi 51¢, Elena Rybakina @ Polymarket 49¢
All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap |
|---|---|---|---|
| Coco Gauff | 49¢ / 51¢ | 51¢ / 52¢ | -1.5 pp |
| Elena Rybakina | 50¢ / 51¢ | 48¢ / 49¢ | +2.0 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.