US Open WTA: Mirra Andreeva vs Coco Gauff odds: Kalshi vs Polymarket
Wed, Sep 9, 2026, 11:30 AM ET · WTA tennis matches · $9k traded in 24h across both venues.
Coco Gauff: Kalshi 63¢ vs Polymarket 63¢, 0.0 pp
Mid prices. A price is the market's probability: 63¢ means 63%. 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.
-4.17¢ per $1, after fees
Buy Mirra Andreeva @ Kalshi 38¢, Coco Gauff @ Polymarket 63¢
All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap |
|---|---|---|---|
| Mirra Andreeva | 37¢ / 38¢ | 37¢ / 38¢ | 0.0 pp |
| Coco Gauff | 62¢ / 63¢ | 62¢ / 63¢ | 0.0 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.