Sao Paulo Open: Xiaodi You vs Alina Charaeva odds: Kalshi vs Polymarket
Mon, Sep 14, 2026, 1:00 PM ET · WTA tennis matches · $239 traded in 24h across both venues.
Alina Charaeva: Kalshi 68¢ vs Polymarket 67¢, +1.0 pp
Mid prices. A price is the market's probability: 68¢ means 68%. 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.
-6.09¢ per $1, after fees
Buy Xiaodi You @ Kalshi 35¢, Alina Charaeva @ Polymarket 68¢
All outcomes
| Outcome | Kalshi bid / ask | Polymarket bid / ask | Gap |
|---|---|---|---|
| Xiaodi You | 30¢ / 35¢ | 32¢ / 35¢ | -1.0 pp |
| Alina Charaeva | 66¢ / 69¢ | 65¢ / 68¢ | +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.