TOTAL VOLUME:
$134.1b
24H VOL:
$141,541,542
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,440,096,988
406,065
Markets across
30,522
events
MATCHED EVENTS:
2,692
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Sep 28, 9:07 AM EST
Polymarket
This market refers to the tennis match between Benjamin Bonzi and August Holmgren in the Porto 2, originally scheduled for September 28, 2026 at 5:00AM ET. This market will resolve to 'Benjamin Bonzi' if Benjamin Bonzi advances against August Holmgren. This market will resolve to 'August Holmgren' if August Holmgren advances against Benjamin Bonzi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 12, 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.
This market refers to the tennis match between Benjamin Bonzi and August Holmgren in the Porto 2, originally scheduled for September 28, 2026 at 5:00AM ET. This market will resolve to 'Benjamin Bonzi' if Benjamin Bonzi advances against August Holmgren. This market will resolve to 'August Holmgren' if August Holmgren advances against Benjamin Bonzi. If the match is canceled (not played at all), ends in a tie, or a winner has not been determined by October 12, 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, potentially differing from those set by sportsbooks. Sportsbooks establish initial lines based on statistical models and expert analysis, while this market aggregates insights from many individuals. Discrepancies can arise due to differing information, biases, or risk assessments. If a significant difference exists between prediction market probabilities and sportsbook odds, it may signal an opportunity for arbitrage, where traders can profit by exploiting the price difference between the two.
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 perceived by the market participants. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The more traders who believe a particular outcome will happen, the higher the price of its corresponding shares will rise. This creates a dynamic pricing system that reflects the evolving expectations of the crowd regarding the Bonzi vs Holmgren match.
This market resolves around Oct 5, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. Resolution will be based on the official result of the Bonzi vs Holmgren match as reported by a recognized tennis authority. The platform will verify the result against these sources to determine the winning outcome and distribute payouts to those who correctly predicted the result. Traders should monitor official sources for updates as the resolution date approaches.
Several factors could influence the price movement of this market before Oct 5, 2026. Any news regarding player injuries, changes in playing conditions, or updated match previews from tennis analysts could shift trader sentiment. Unexpected results in other matches involving either player could also affect perceptions of their form and ability. Furthermore, significant trading volume from informed participants could signal new information or a change in expectations, causing the market to react accordingly. Monitoring these signals will be key to understanding potential shifts in the probabilities.