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WTA·Mon 3:00 AM ET

Katarzyna Kawa vs Simona Waltert

Simona Waltert is the current favorite at $0.92 ask on Kalshi and $0.93 ask on Polymarket — an implied ≈92% chance. Prices as of 11:57 UTC on Jul 12, 2026, delayed about five minutes. Source markets: Kalshi · Polymarket. Resolution follows each venue's own market terms.

Curious how long a gap like this stays open? We measured it.

Katarzyna Kawa

WTA

Mon 3:00 AM ET

Simona Waltert
60%70%80%90%100%4:14 AM4:31 AM4:49 AM5:05 AM5:22 AM67¢64¢

Moneyline

Katarzyna Kawa3¢ gap
Kalshi67¢Polymarket64¢
Simona Waltert1¢ gap
Kalshi92¢Polymarket93¢

Prices delayed about five minutes. Each venue's best ask per outcome; Kalshi asks are derived from its NO bids (ask = $1 minus the bid). Kalshi volume counts contracts, Polymarket volume is in dollars. Real-time prices and the full depth ladder are available via the WebSocket stream with an API key. Feed reference DINO-XKQZ7-9182.