TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 1, 3:12 PM EST
Polymarket
This market refers to the tennis match between Pedro Vives Marcos and Eduardo Ribeiro in the Porto, originally scheduled for September 1, 2026 at 10:00AM ET. This market will resolve to 'Pedro Vives Marcos' if Pedro Vives Marcos advances against Eduardo Ribeiro. This market will resolve to 'Eduardo Ribeiro' if Eduardo Ribeiro advances against Pedro Vives Marcos. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 2026, 11:59 PM ET (14 days after the scheduled start), 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 Pedro Vives Marcos and Eduardo Ribeiro in the Porto, originally scheduled for September 1, 2026 at 10:00AM ET. This market will resolve to 'Pedro Vives Marcos' if Pedro Vives Marcos advances against Eduardo Ribeiro. This market will resolve to 'Eduardo Ribeiro' if Eduardo Ribeiro advances against Pedro Vives Marcos. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 15, 2026, 11:59 PM ET (14 days after the scheduled start), 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.
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Polymarket, traders manually set prices through buying and selling contracts, which determines the current implied probability. The top outcome’s chance reflects the most recent trading activity and available volume of $115,015. This decentralized pricing allows rapid adjustments to new information, such as player injuries or tactical updates, without external influence. As a result, the market price captures the collective expectation of Polymarket participants at any given moment.
This market resolves around Sep 8, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The result will be determined by official match reports and widely accepted sports databases, ensuring an impartial and transparent closing of positions for all participants.
Key signals include official team announcements about lineups, injury reports for either participant, and tactical analysis from trusted sources. Media coverage highlighting performance metrics or psychological factors can also shift trader sentiment. As Sep 8, 2026 approaches, any last-minute changes — such as coaching decisions or unexpected substitutions — may cause rapid price movements. Traders should monitor real-time news feeds and in-platform volume trends to anticipate shifts in this market.