TOTAL VOLUME:
$154.4b
24H VOL:
$245,801,863
24H TRANSACTIONS:
2,984,028,936
OPEN INTEREST:
$1,902,097,102
417,059
Markets across
40,178
events
MATCHED EVENTS:
4,415
PLATFORM COVERAGE:
5
Polymarket:
37%
VS.
Kalshi:
63%
Closed: Oct 19, 3:23 AM EST
Polymarket
This market refers to the tennis match between Marko Retelj and Hendrik Thada Grohbruegge in the M15 Singapore, Qualifying, originally scheduled for October 18, 2026 at 11:00PM ET. This market will resolve to 'Marko Retelj' if Marko Retelj advances against Hendrik Thada Grohbruegge. This market will resolve to 'Hendrik Thada Grohbruegge' if Hendrik Thada Grohbruegge advances against Marko Retelj. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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 Marko Retelj and Hendrik Thada Grohbruegge in the M15 Singapore, Qualifying, originally scheduled for October 18, 2026 at 11:00PM ET. This market will resolve to 'Marko Retelj' if Marko Retelj advances against Hendrik Thada Grohbruegge. This market will resolve to 'Hendrik Thada Grohbruegge' if Hendrik Thada Grohbruegge advances against Marko Retelj. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by November 1, 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.
Prediction market odds often reflect the wisdom of the crowd, potentially differing from traditional sportsbook odds. Sportsbooks set lines based on their own models and incorporate a profit margin, while this market is driven by traders directly expressing their beliefs. If a significant discrepancy exists between prediction market probabilities and sportsbook odds, it might indicate an opportunity for arbitrage – though transaction costs and platform fees should be considered. It’s common to see initial differences that narrow as the event approaches, as more information becomes available and traders refine their assessments.
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 reflects the implied probability of that outcome occurring. As more traders participate and express their views, the price adjusts to reflect the collective assessment. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The market's price movements are driven by supply and demand; increased buying pressure raises the price, while increased selling pressure lowers it. This dynamic pricing ensures that the market reflects the most up-to-date information and expectations.
This market resolves around Oct 26, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the M15 Singapore tennis match between Marko Retelj and Hendrik Thada Grohbruegge. The platform will verify the result against widely available and trusted sources to determine the winning player. Traders holding shares in the winning outcome will be entitled to a payout, while those holding shares in the losing outcome will not. The exact payout amount will depend on the market price at the time of resolution.
Several factors could influence the price of this market before resolution. Any news regarding player form, injuries, or changes in playing conditions could significantly impact trader sentiment. Unexpected upsets in other matches involving these players, or broader shifts in tennis rankings, might also cause price movements. Furthermore, large trades by influential market participants could create short-term volatility. Monitoring tennis news sources and observing trading volume on Polymarket will provide insights into potential catalysts that could move this market.