TOTAL VOLUME:
$154.5b
24H VOL:
$271,200,656
24H TRANSACTIONS:
2,984,640,614
OPEN INTEREST:
$1,922,627,141
420,368
Markets across
40,352
events
MATCHED EVENTS:
4,484
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 21, 11:13 AM EST
Opinion
In the upcoming ATP singles match scheduled for 2026-10-21 06:35 UTC: if Mattia Bellucci wins the match, this market resolves to "Mattia Bellucci"; if Martin Etcheverry Tomas wins, it resolves to "Martin Etcheverry Tomas". The winner is the first player to claim the required number of sets under the match's official best-of format. If the match begins but is not completed, a retirement or default counts the opposing player as the winner. If a walkover is declared before the first point is played, the match is outright canceled, or it is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. Suspensions caused by weather, fading light, or other tournament-imposed delays do not close this market — it stays open until the match is officially completed, provided it concludes within the 7-day window mentioned above. Resolution Source: The official ATP Tour scoring page. Note: This market will resolve strictly based on the first officially published result from the designated source. Any subsequent revisions will not affect this resolution.
In the upcoming ATP singles match scheduled for 2026-10-21 06:35 UTC: if Mattia Bellucci wins the match, this market resolves to "Mattia Bellucci"; if Martin Etcheverry Tomas wins, it resolves to "Martin Etcheverry Tomas". The winner is the first player to claim the required number of sets under the match's official best-of format. If the match begins but is not completed, a retirement or default counts the opposing player as the winner. If a walkover is declared before the first point is played, the match is outright canceled, or it is delayed beyond 7 days from the scheduled date without a winner determined, this market will resolve to 50-50. Suspensions caused by weather, fading light, or other tournament-imposed delays do not close this market — it stays open until the match is officially completed, provided it concludes within the 7-day window mentioned above. Resolution Source: The official ATP Tour scoring page. Note: This market will resolve strictly based on the first officially published result from the designated source. Any subsequent revisions will not affect this resolution.
Generally, prediction market odds tend to be more accurate than traditional sportsbook odds, especially when considering the wisdom of the crowd. Sportsbooks often incorporate a 'vig' or commission into their odds, which slightly reduces the payout to bettors. This market, however, allows traders to directly assess the probabilities and express their beliefs without that built-in margin. While sportsbooks may initially set odds based on expert analysis, prediction markets can quickly adjust to new information and collective insights, potentially offering a more refined assessment of the likely outcome.
On Opinion, this market is priced through a continuous order book where traders can buy and sell contracts representing their belief in each outcome. The price of a contract reflects the probability of that outcome occurring, as determined by supply and demand. On Opinion, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. As more traders buy contracts for a particular outcome, the price increases, and the implied probability rises. Conversely, selling pressure lowers the price and reduces the implied probability. This dynamic pricing mechanism ensures that the market reflects the collective intelligence of all participants.
This market resolves around Oct 21, 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 between Mattia Bellucci and Martin Etcheverry Tomas, as reported by a recognized tennis authority. The platform will verify the result against these sources to determine which outcome is the winner. Traders holding winning contracts will be paid out according to the final market prices at the time of resolution.
Several factors could influence this market before Oct 21, 2026. Any news regarding player injuries, changes in playing surface conditions, or significant shifts in player form could all impact trading activity. Unexpected results in other matches involving these players, or even broader tennis news, might also cause traders to reassess their probabilities. Furthermore, large volume trades from informed participants could quickly move the market, reflecting new information or a change in sentiment regarding the Bellucci vs Etcheverry match.