TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 17, 2:35 AM EST
Polymarket
This market refers to the tennis match between Haruna Arakawa and Natsumi Kawaguchi in the W35 Kyoto, Main Draw, originally scheduled for September 16, 2026 at 11:30PM ET. This market will resolve to 'Haruna Arakawa' if Haruna Arakawa advances against Natsumi Kawaguchi. This market will resolve to 'Natsumi Kawaguchi' if Natsumi Kawaguchi advances against Haruna Arakawa. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
This market refers to the tennis match between Haruna Arakawa and Natsumi Kawaguchi in the W35 Kyoto, Main Draw, originally scheduled for September 16, 2026 at 11:30PM ET. This market will resolve to 'Haruna Arakawa' if Haruna Arakawa advances against Natsumi Kawaguchi. This market will resolve to 'Natsumi Kawaguchi' if Natsumi Kawaguchi advances against Haruna Arakawa. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by September 30, 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 International Tennis Federation (ITF). A consensus of credible reporting may also be used.
Comparing prediction market odds to sportsbook odds reveals how public sentiment differs from professional oddsmakers. Sportsbooks typically set lines based on statistical models and expert analysis, while this market reflects the collective wisdom of a diverse group of traders. If prediction market probabilities significantly diverge from sportsbook probabilities, it could indicate that traders possess unique information or have different perspectives on the likely outcome. It's important to note that both represent probabilities, but are derived through different methodologies and participant bases.
On Polymarket, this market is priced through a continuous auction mechanism, where traders buy and sell shares representing their belief in each outcome. The price of a share directly corresponds to the implied probability of that outcome occurring. As more traders buy shares in a particular outcome, its 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. This dynamic pricing ensures that the market reflects the most up-to-date collective assessment of the Arakawa-Kawaguchi match's potential results. The market's efficiency depends on active participation and informed trading.
This market resolves around Sep 24, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the W35 Kyoto Haruna Arakawa vs Natsumi Kawaguchi match. The platform will rely on widely available and trusted sources to determine the winner, ensuring a fair and transparent resolution process. Traders should monitor official announcements and results to stay informed about the progress toward resolution and the final outcome of this market.
Several signals or events could significantly move this market before Sep 24, 2026. Any news regarding player injuries, changes in training regimens, or unexpected performance in preceding matches could shift trader sentiment. Public commentary from analysts or experts offering their predictions could also influence the market. Furthermore, significant betting activity on sportsbooks could create arbitrage opportunities, prompting traders to adjust their positions in this market. Overall, any information that alters the perceived probability of either player winning will likely cause price fluctuations.