TOTAL VOLUME:
$134.1b
24H VOL:
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OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
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Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 4, 8:38 PM EST
Polymarket
This market tracks whether there will be over or under 8.5 games played in the third set of the Tomas Etcheverry versus Mariano Navone match at the US Open ATP tournament. Currently, Polymarket gives a 100.0% probability to “Etcheverry vs. Navone: Set 3 Games O/U 8.5”. Resolution will be based on the official score reported at https://www.atptour.com/en/scores/current. Keep an eye on the match itself, originally scheduled for September 4, 2026 at 11:00AM ET, as the number of games played in the third set will determine the outcome of this market.
This market refers to the tennis match between Tomas Etcheverry and Mariano Navone in the US Open ATP, originally scheduled for September 4, 2026 at 11:00AM ET. This market will resolve to 'Tomas Etcheverry' if Tomas Etcheverry advances against Mariano Navone. This market will resolve to 'Mariano Navone' if Mariano Navone advances against Tomas Etcheverry. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 18, 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, and may adjust lines based on liabilities or public betting patterns. This market, however, is driven by the collective wisdom of traders who are incentivized to accurately forecast the outcome. While sportsbooks may initially offer similar probabilities, they can diverge as new information becomes available or as one side attracts significantly more betting action. It's common to see prediction markets reflect more nuanced probabilities than traditional odds.
On Polymarket, this market is priced through a continuous trading mechanism where traders buy and sell shares representing their belief in the likelihood of 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. The market’s price fluctuates based on supply and demand; if more traders believe Etcheverry will win, the price of shares representing that outcome will increase, and vice versa. This dynamic pricing ensures that the market odds continuously adapt to new information and trader sentiment.
This market resolves around Sep 11, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Etcheverry vs Navone match as reported by a recognized tennis authority. The market will determine which player ultimately won the match, and the outcome will be settled accordingly. Traders should monitor official sources for the final result to understand how this market will be resolved.
Several factors could influence the movement of this market before resolution. Any news regarding player injuries, changes in playing conditions (like weather), or updates on their recent performance could significantly shift trader sentiment. Unexpected results in other matches leading up to the event, or even pre-match analysis from tennis experts, could also play a role. A strong showing by either player in a warm-up match, or even a change in coaching staff, could lead to adjustments in the probabilities reflected in this market.