TOTAL VOLUME:
$154.4b
24H VOL:
$235,918,089
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,884,820,873
413,109
Markets across
40,428
events
MATCHED EVENTS:
4,364
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 7, 3:52 PM EST
Polymarket
This market tracks whether the total number of games played in the second set of the Joao Lucas Da Silva versus Guido Justo tennis match at the Antofagasta tournament will be over or under 10.5. Currently, Polymarket gives a 100.0% probability to “Silva vs. Justo: Set 2 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 October 7, 2026 at 2:00PM ET, as that is when the first serve is expected and will initiate the game count for resolution.
This market refers to the tennis match between Joao Lucas Da Silva and Guido Justo in the Antofagasta, originally scheduled for October 7, 2026 at 2:00PM ET. This market will resolve to 'Joao Lucas Da Silva' if Joao Lucas Da Silva advances against Guido Justo. This market will resolve to 'Guido Justo' if Guido Justo advances against Joao Lucas Da Silva. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 21, 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.
Often, prediction market odds offer a different perspective than traditional sportsbooks. Sportsbooks set lines to balance action and incorporate a profit margin, while this market reflects the collective wisdom of traders who are incentivized to be accurate. Discrepancies can arise due to differing information, biases, or simply varying interpretations of the teams' strengths. If you find a significant difference between the implied probability on Polymarket and sportsbook odds, it might signal an opportunity for informed traders.
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 probability of that outcome occurring. As more traders buy shares in a particular result, the price increases, and the implied probability rises. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market's price dynamically adjusts based on supply and demand, providing a real-time assessment of expectations for the Antofagasta match.
This market resolves around Oct 14, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Antofagasta match, as declared by the governing sporting body. The platform will verify the result against trusted sources to ensure accuracy and determine which outcome corresponds to the winning shares. Traders holding shares in the correct outcome will be entitled to a payout based on the final market price.
Several factors could influence the price of this market. News regarding player injuries, changes in team strategy, or even weather conditions could all shift trader sentiment. Unexpected announcements about team lineups or coaching decisions could also have a significant impact. Furthermore, any updates on the overall form of either Joao Lucas Da Silva or Guido Justo, or their recent performance in similar matches, will likely be reflected in the market price as traders adjust their predictions.