Kostyuk and Stearns enter their Cincinnati Open doubles matchup with strong momentum after upsetting Venus and Serena Williams in the opening round on August 17, prevailing in a three-set battle capped by a 10-point tiebreaker on home soil for Greater Cincinnati native Peyton Stearns. The pair benefits from local crowd support and recent form on hard courts. Opponents Hanyu Guo and Kristina Mladenovic, the No. 3 seeds and 2026 Wimbledon champions, bring proven doubles chemistry and a recent Grand Slam title that underscores their experience in high-stakes matches. The contest pits Stearns/Kostyuk's fresh confidence against the seeded duo's tactical depth and consistency, with surface conditions and potential fatigue from the Williams match as variables to monitor.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated1d 6h
Aug 19·2:00 PM
K. Kostyuk/Stearns-
G. Guo/Mladenovic-
$0.00 Vol.
NEW
This market refers to the doubles tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to 'Kostyuk/Stearns' if the team of Kostyuk/Stearns advances against Guo/Mladenovic.
This market will resolve to 'Guo/Mladenovic' if the team of Guo/Mladenovic advances against Kostyuk/Stearns.
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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.
If the match ends in a walkover (a team 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.This market refers to the doubles tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." 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 "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to “Kostyuk/Stearns” if Kostyuk/Stearns wins set 2. It will resolve to “Guo/Mladenovic” if Guo/Mladenovic wins set 2.
If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official WTA match statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under."
A super tie breaker is considered as one (1) set for total set markets.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to “Kostyuk/Stearns” if Kostyuk/Stearns wins the first set. It will resolve to “Guo/Mladenovic” if Guo/Mladenovic wins the first set.
If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official WTA match statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Kostyuk/Stearns" if Kostyuk/Stearns wins by 2 or more sets than Guo/Mladenovic, based on the final completed score. Otherwise, it will resolve to "Guo/Mladenovic."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 23. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Guo/Mladenovic and Kostyuk/Stearns in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Guo/Mladenovic" if Guo/Mladenovic wins by 2 or more sets than Kostyuk/Stearns, based on the final completed score. Otherwise, it will resolve to "Kostyuk/Stearns."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 24. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.Kostyuk and Stearns enter their Cincinnati Open doubles matchup with strong momentum after upsetting Venus and Serena Williams in the opening round on August 17, prevailing in a three-set battle capped by a 10-point tiebreaker on home soil for Greater Cincinnati native Peyton Stearns. The pair benefits from local crowd support and recent form on hard courts. Opponents Hanyu Guo and Kristina Mladenovic, the No. 3 seeds and 2026 Wimbledon champions, bring proven doubles chemistry and a recent Grand Slam title that underscores their experience in high-stakes matches. The contest pits Stearns/Kostyuk's fresh confidence against the seeded duo's tactical depth and consistency, with surface conditions and potential fatigue from the Williams match as variables to monitor.
This market refers to the doubles tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to 'Kostyuk/Stearns' if the team of Kostyuk/Stearns advances against Guo/Mladenovic.
This market will resolve to 'Guo/Mladenovic' if the team of Guo/Mladenovic advances against Kostyuk/Stearns.
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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.
If the match ends in a walkover (a team 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.
This market will resolve to 'Kostyuk/Stearns' if the team of Kostyuk/Stearns advances against Guo/Mladenovic.
This market will resolve to 'Guo/Mladenovic' if the team of Guo/Mladenovic advances against Kostyuk/Stearns.
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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.
If the match ends in a walkover (a team 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, 1:20 AM ET
Volume
$0End Date
Aug 26, 2026Market Opened
Aug 18, 2026, 1:20 AM ETResolution Source
https://www.wtatennis.com/scoresResolver
0x65070BE91...1d 6h
Aug 19·2:00 PM
K. Kostyuk/Stearns-
G. Guo/Mladenovic-
$0.00 Vol.
NEW
This market refers to the doubles tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to 'Kostyuk/Stearns' if the team of Kostyuk/Stearns advances against Guo/Mladenovic.
This market will resolve to 'Guo/Mladenovic' if the team of Guo/Mladenovic advances against Kostyuk/Stearns.
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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.
If the match ends in a walkover (a team 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.This market refers to the doubles tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET. This market will resolve to "Yes" if all games and sets required to determine a match winner under governing body or event organizer rules are played to completion through normal play. Otherwise, if the match is not completed for any reason, it will resolve to "No." If a forfeit of any kind occurs, including but not limited to a walkover or retirement, this market will resolve "No." 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 "No." The primary resolution source for this market is the official statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 2 hours after the event's conclusion, a consensus of credible reporting may be used instead.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to “Kostyuk/Stearns” if Kostyuk/Stearns wins set 2. It will resolve to “Guo/Mladenovic” if Guo/Mladenovic wins set 2.
If the match begins but set 2 is not completed with a winner determined (including the match ending before set 2 is reached), this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official WTA match statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 22. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of sets completed equals or exceeds 3. Otherwise, it will resolve to "Under."
A super tie breaker is considered as one (1) set for total set markets.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to “Kostyuk/Stearns” if Kostyuk/Stearns wins the first set. It will resolve to “Guo/Mladenovic” if Guo/Mladenovic wins the first set.
If the match begins but is not completed, and the first set is concluded with a winner determined, this market will resolve based on that completed set. If the first set is not completed for any reason, this market will resolve 50-50.
If the match is canceled (not played at all) or is delayed beyond 7 days from the scheduled date without play beginning, this market will resolve 50-50.
Resolution will be based on official WTA match statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Kostyuk/Stearns" if Kostyuk/Stearns wins by 2 or more sets than Guo/Mladenovic, based on the final completed score. Otherwise, it will resolve to "Guo/Mladenovic."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 23. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Guo/Mladenovic and Kostyuk/Stearns in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Guo/Mladenovic" if Guo/Mladenovic wins by 2 or more sets than Kostyuk/Stearns, based on the final completed score. Otherwise, it will resolve to "Kostyuk/Stearns."
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed across all sets equals or exceeds 24. Otherwise, it will resolve to "Under."
All tiebreaks—including any Champions/Super tiebreak—count as one (1) game toward the total.
If the match begins but is not completed, this market will resolve 50-50. If the match is canceled before play begins or delayed beyond 7 days from the scheduled date without a result, this market will also resolve 50-50.
Resolution will be based on official WTA statistics.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 9. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 9. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 10. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 10. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in the first set equals or exceeds 11. Otherwise, it will resolve to "Under."
Any first-set tiebreak counts as one (1) game toward the total.
If the first set is not completed for any reason, this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.This market refers to the tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to "Over" if the total number of games completed in set 2 equals or exceeds 11. Otherwise, it will resolve to "Under."
Any tiebreak in set 2 counts as one (1) game toward the total.
If set 2 is not completed for any reason (including the match ending before set 2 is reached), this market will resolve 50-50. If the match is canceled before play begins, or delayed beyond 7 days without commencement, this market will also resolve 50-50.
Resolution will be based on official WTA results.Kostyuk and Stearns enter their Cincinnati Open doubles matchup with strong momentum after upsetting Venus and Serena Williams in the opening round on August 17, prevailing in a three-set battle capped by a 10-point tiebreaker on home soil for Greater Cincinnati native Peyton Stearns. The pair benefits from local crowd support and recent form on hard courts. Opponents Hanyu Guo and Kristina Mladenovic, the No. 3 seeds and 2026 Wimbledon champions, bring proven doubles chemistry and a recent Grand Slam title that underscores their experience in high-stakes matches. The contest pits Stearns/Kostyuk's fresh confidence against the seeded duo's tactical depth and consistency, with surface conditions and potential fatigue from the Williams match as variables to monitor.
This market refers to the doubles tennis match between Kostyuk/Stearns and Guo/Mladenovic in the Cincinnati Open, originally scheduled for August 19, 2026 at 10:00AM ET.
This market will resolve to 'Kostyuk/Stearns' if the team of Kostyuk/Stearns advances against Guo/Mladenovic.
This market will resolve to 'Guo/Mladenovic' if the team of Guo/Mladenovic advances against Kostyuk/Stearns.
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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.
If the match ends in a walkover (a team 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.
This market will resolve to 'Kostyuk/Stearns' if the team of Kostyuk/Stearns advances against Guo/Mladenovic.
This market will resolve to 'Guo/Mladenovic' if the team of Guo/Mladenovic advances against Kostyuk/Stearns.
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 team advances due to the opponent's retirement, default, or disqualification, this market will resolve to the team who advances.
If the match ends in a walkover (a team 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, 1:20 AM ET
Volume
$0End Date
Aug 26, 2026Market Opened
Aug 18, 2026, 1:20 AM ETResolution Source
https://www.wtatennis.com/scoresResolver
0x65070BE91...Kostyuk and Stearns enter their Cincinnati Open doubles matchup with strong momentum after upsetting Venus and Serena Williams in the opening round on August 17, prevailing in a three-set battle capped by a 10-point tiebreaker on home soil for Greater Cincinnati native Peyton Stearns. The pair benefits from local crowd support and recent form on hard courts. Opponents Hanyu Guo and Kristina Mladenovic, the No. 3 seeds and 2026 Wimbledon champions, bring proven doubles chemistry and a recent Grand Slam title that underscores their experience in high-stakes matches. The contest pits Stearns/Kostyuk's fresh confidence against the seeded duo's tactical depth and consistency, with surface conditions and potential fatigue from the Williams match as variables to monitor.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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