TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
National Bank Open: Daniil Medvedev vs Botic van de Zandschulp Match O/U 21.5
- Polymarket
National Bank Open: Daniil Medvedev vs Botic van de Zandschulp Match O/U 21.5 - Polymarket
1W
News
Positive
Negative
Neutral
Hover marker for details
Vol.
·
Resolved Aug 6, 2026
Closed: Aug 5, 9:21 PM EST
Polymarket
This market refers to the tennis match between Daniil Medvedev and Botic van de Zandschulp in the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. This market will resolve to 'Daniil Medvedev' if Daniil Medvedev advances against Botic van de Zandschulp. This market will resolve to 'Botic van de Zandschulp' if Botic van de Zandschulp advances against Daniil Medvedev. 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 ATP Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Daniil Medvedev and Botic van de Zandschulp in the National Bank Open, originally scheduled for August 6, 2026 at 10:00AM ET. This market will resolve to 'Daniil Medvedev' if Daniil Medvedev advances against Botic van de Zandschulp. This market will resolve to 'Botic van de Zandschulp' if Botic van de Zandschulp advances against Daniil Medvedev. 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 ATP Tour. A consensus of credible reporting may also be used.
Prediction market odds in this market often differ from traditional sportsbook lines due to trader-driven pricing and unique betting mechanics on Polymarket. While sportsbooks set their odds based on analyst assessments and risk management, prediction markets let participants bet directly on outcomes, which can lead to sharper or more volatile prices. Traders may price in real-time news, player form, or weather updates faster than sportsbooks adjust. However, sportsbooks typically include a vig or margin, whereas this market reflects a pure probability estimate from active Polymarket users.
This market resolves around Aug 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result is determined by the official match conclusion — no tiebreaker or extension applies unless the tournament schedule changes. Traders should watch for last-minute updates to ensure they understand when and how the final score will be validated.
Injuries, weather delays, or recent form can shift this market as the event nears. Players’ practice updates, seeding changes, or even betting volume spikes may cause odds to adjust. Media coverage highlighting performance trends or head-to-head history could also influence trader sentiment. Keep an eye on official tournament announcements and real-time news feeds to anticipate potential moves.