Mirra Andreeva enters the Cincinnati Open fourth-round matchup against Marta Kostyuk as the higher-ranked player at No. 6 with a 38-12 record in 2026, including a Roland Garros title and strong hard-court results earlier in the season. Kostyuk, ranked No. 11 and holding a slight head-to-head edge overall, arrives with momentum after straight-sets wins over Sofia Kenin and Sloane Stephens in Cincinnati, plus titles in Madrid and Rouen this year. Their most recent meeting came on clay at the French Open semifinals, where Andreeva prevailed in straight sets, though the hard-court surface here favors Kostyuk’s recent form and experience. Both players have demonstrated consistent baseline play and strong return games, with limited injury concerns reported ahead of the contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedMarta Kostyuk – Mirra Andreeva
Moneyline
$634K 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
$634K 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 the Cincinnati Open fourth-round matchup against Marta Kostyuk as the higher-ranked player at No. 6 with a 38-12 record in 2026, including a Roland Garros title and strong hard-court results earlier in the season. Kostyuk, ranked No. 11 and holding a slight head-to-head edge overall, arrives with momentum after straight-sets wins over Sofia Kenin and Sloane Stephens in Cincinnati, plus titles in Madrid and Rouen this year. Their most recent meeting came on clay at the French Open semifinals, where Andreeva prevailed in straight sets, though the hard-court surface here favors Kostyuk’s recent form and experience. Both players have demonstrated consistent baseline play and strong return games, with limited injury concerns reported ahead of the contest.
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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