TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 6, 7:08 PM EST
Polymarket
This market tracks whether a total of more than 10.5 games will be played in the third set of the Daniil Medvedev versus Frances Tiafoe match at the US Open ATP tournament. Currently, Polymarket gives a 100.0% probability to “Medvedev vs. Tiafoe: Set 3 Games O/U 10.5”. 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 originally scheduled match time of September 6, 2026 at 11:00AM ET, as the start of the match will be a key signal for determining if a third set will be played.
This market refers to the tennis match between Daniil Medvedev and Frances Tiafoe in the US Open ATP, originally scheduled for September 6, 2026 at 11:00AM ET. This market will resolve to 'Daniil Medvedev' if Daniil Medvedev advances against Frances Tiafoe. This market will resolve to 'Frances Tiafoe' if Frances Tiafoe advances against Daniil Medvedev. 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.
Typically, prediction market odds offer a different perspective than those found at traditional sportsbooks. Sportsbooks often incorporate a 'vig' or commission into their odds, while prediction markets more closely reflect the true probabilities as assessed by traders. However, it’s common to see initial discrepancies, especially before significant trading volume builds. It’s valuable to compare the implied probabilities from this market with those offered by sportsbooks to identify potential value or differing opinions on the outcome of the Medvedev vs Tiafoe match.
On Polymarket, this market is priced through a continuous trading mechanism where traders buy and sell shares representing their belief in a particular outcome. The price of these shares directly reflects 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 and new information becomes available, the prices adjust accordingly, creating a dynamic and informative prediction. The current price indicates what traders collectively believe is the likelihood of a specific player winning the match.
This market resolves around Sep 13, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution will be based on the official result of the Medvedev vs Tiafoe match, as declared by the official tournament organizers. This ensures a clear and objective determination of the winning outcome for this market. Traders will be able to claim their winnings based on the final, verified result of the match.
Several factors could influence the trading activity and price movements in this market. Any news regarding player injuries, changes in playing conditions, or updated match analyses from tennis experts could significantly impact trader sentiment. Unexpected upsets in earlier rounds of the tournament, or even comments from the players themselves, could also shift the probabilities. Furthermore, large trading volume from informed traders could indicate a change in expectations regarding the Medvedev vs Tiafoe match, leading to price adjustments.