TOTAL VOLUME:
$134.2b
24H VOL:
$130,522,377
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,438,389,636
404,028
Markets across
30,214
events
MATCHED EVENTS:
2,681
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 6, 9:40 PM EST
Polymarket
This market tracks whether Ben Shelton will win Set 4 against Stefanos Tsitsipas in their US Open ATP match, originally scheduled for September 6, 2026 at 11:00AM ET. Currently, Polymarket gives a 100.0% probability to Ben Shelton winning Set 4. The resolution source for this market is the official ATP Tour website at https://www.atptour.com/en/scores/current. Keep an eye on the match progress, as this market will be settled based on the official result reported after the conclusion of the match on September 6, 2026.
This market refers to the tennis match between Ben Shelton and Stefanos Tsitsipas in the US Open ATP, originally scheduled for September 6, 2026 at 11:00AM ET. This market will resolve to 'Ben Shelton' if Ben Shelton advances against Stefanos Tsitsipas. This market will resolve to 'Stefanos Tsitsipas' if Stefanos Tsitsipas advances against Ben Shelton. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 20, 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.
Prediction market odds often reflect the collective wisdom of a diverse group of bettors, potentially offering a different perspective than traditional sportsbooks. Sportsbooks set initial lines based on their own models and risk management, while this market allows anyone to trade on their beliefs. This can lead to discrepancies, as prediction markets can sometimes incorporate information more quickly or weigh different factors differently than sportsbooks. It's important to compare both to get a well-rounded view of the anticipated outcome of the match.
On Polymarket, this market is priced through a continuous auction mechanism where traders buy and sell shares representing their belief in the outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders participate, the price adjusts to reflect the collective assessment of the match's likely result. The current price reflects the aggregated opinions of those trading on Polymarket, and is a dynamic indicator of expectations for the Shelton vs Tsitsipas match.
This market resolves around Sep 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the match as reported by a recognized tennis authority. The market will determine which player, Shelton or Tsitsipas, ultimately wins the match. This ensures a clear and objective determination of the outcome, based on the official record of the event.
Several factors could influence the market leading up to the match. Any news regarding player injuries, changes in playing conditions, or even significant shifts in public opinion could cause the odds to move. Unexpected announcements about player form or strategy could also impact trading activity. Furthermore, major upsets in other matches within the US Open tournament might affect confidence in certain players or playing styles, influencing how traders assess the likelihood of either Shelton or Tsitsipas winning this particular match.