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 5, 6:27 AM EST
Polymarket
This market tracks whether Carlos Alcaraz will advance against Jaume Munar in their match at the Japan Open Tennis Championships, specifically focusing on whether the first set will have over or under 8.5 games. Currently, Polymarket gives a 100.0% probability to “Alcaraz vs. Munar: Set 1 Games O/U 8.5”. Resolution will be based on the official scores reported at https://www.atptour.com/en/scores/current. Keep a close watch on the match itself, originally scheduled for October 5, 2026 at 3:00AM ET, as the outcome will be determined by the results of that contest.
This market refers to the tennis match between Carlos Alcaraz and Jaume Munar in the Japan Open Tennis Championships, originally scheduled for October 5, 2026 at 3:00AM ET. This market will resolve to 'Carlos Alcaraz' if Carlos Alcaraz advances against Jaume Munar. This market will resolve to 'Jaume Munar' if Jaume Munar advances against Carlos Alcaraz. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 19, 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 traders, which can sometimes differ from those offered by traditional sportsbooks. Sportsbooks set their lines based on their own models and risk management, while this market aggregates the views of many individuals. It's common to see discrepancies, especially early in the market’s life, as prediction markets can incorporate information and perspectives that sportsbooks might overlook. Examining these differences can provide valuable insights into public perception and potential value bets.
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. As more people trade, the price adjusts to reflect the collective assessment of the event. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market’s price is driven entirely by supply and demand, with traders expressing their views through their trading activity. This dynamic pricing allows for a real-time assessment of the likelihood of each possible result.
This market resolves around Oct 12, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Alcaraz vs Munar match as reported by the tournament organizers. The market will determine which outcome – a win for Alcaraz or Munar – is the accurate result. Traders who correctly predicted the winner will receive a payout based on the final share price at resolution, while those who predicted incorrectly will forfeit their shares.
Several factors could influence the price of this market before Oct 12, 2026. Any news regarding player injuries, changes in playing conditions, or even pre-match analysis from tennis experts could shift trader sentiment. Unexpected upsets in other matches leading up to the Alcaraz vs Munar match might also impact confidence in either player. Furthermore, significant trading volume from informed participants could signal a shift in expectations and cause the market to react accordingly. Monitoring these signals will be key to understanding potential price movements.