Mirra Andreeva enters this Cincinnati Open hard-court matchup as the clear market favorite, backed by her No. 6 ranking, 38-12 record in 2026, and recent French Open title. The 19-year-old has dominated head-to-head meetings, including a straight-sets semifinal win over Kostyuk at Roland Garros in June. Kostyuk, ranked 11th with a 29-7 record and titles in Madrid and Rouen, arrives after a three-set victory over Sofia Kenin but faces a stylistic challenge against Andreeva’s consistent baseline game and movement on hard courts. Andreeva’s path includes a recent three-set win over Janice Tjen, while both players benefit from byes and strong recent form heading into the round of 16.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAll Sports
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Marta Kostyuk – Mirra Andreeva
Moneyline
$822 Vol.
This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Mirra Andreeva.
This market will resolve to 'Mirra Andreeva' if Mirra Andreeva advances against Marta Kostyuk.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Market Opened: Aug 18, 2026, 6:14 PM ET
Resolution Source
https://www.wtatennis.com/scoresResolver
0x65070BE91...Marta Kostyuk – Mirra Andreeva
Moneyline
$822 Vol.
This market will resolve to 'Marta Kostyuk' if Marta Kostyuk advances against Mirra Andreeva.
This market will resolve to 'Mirra Andreeva' if Mirra Andreeva advances against Marta Kostyuk.
If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50.
If the match begins but is not completed, and one player advances due to the opponent's retirement, default, or disqualification, this market will resolve to the player who advances.
If the match ends in a walkover (player withdraws before the start and the other advances automatically), this market will resolve to 50-50.
The primary resolution source will be official information from the WTA Tour. A consensus of credible reporting may also be used.
Market Opened: Aug 18, 2026, 6:14 PM ET
Resolution Source
https://www.wtatennis.com/scoresResolver
0x65070BE91...Mirra Andreeva enters this Cincinnati Open hard-court matchup as the clear market favorite, backed by her No. 6 ranking, 38-12 record in 2026, and recent French Open title. The 19-year-old has dominated head-to-head meetings, including a straight-sets semifinal win over Kostyuk at Roland Garros in June. Kostyuk, ranked 11th with a 29-7 record and titles in Madrid and Rouen, arrives after a three-set victory over Sofia Kenin but faces a stylistic challenge against Andreeva’s consistent baseline game and movement on hard courts. Andreeva’s path includes a recent three-set win over Janice Tjen, while both players benefit from byes and strong recent form heading into the round of 16.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedBeware of external links.
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