TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jul 5, 6:00 AM EST
Polymarket
This market refers to the tennis match between Mert Alkaya and Carl Emil Overbeck in the ITF Men Porto, originally scheduled for June 28, 2026 at 6:00AM ET. This market will resolve to 'Mert Alkaya' if Mert Alkaya advances against Carl Emil Overbeck. This market will resolve to 'Carl Emil Overbeck' if Carl Emil Overbeck advances against Mert Alkaya. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 Mert Alkaya and Carl Emil Overbeck in the ITF Men Porto, originally scheduled for June 28, 2026 at 6:00AM ET. This market will resolve to 'Mert Alkaya' if Mert Alkaya advances against Carl Emil Overbeck. This market will resolve to 'Carl Emil Overbeck' if Carl Emil Overbeck advances against Mert Alkaya. If the match is canceled (not played at all), ends in a tie, or is delayed beyond 7 days from the scheduled date without a winner determined, 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 and sportsbook odds often diverge because they reflect different trader bases and incentive structures. Sportsbooks set odds to balance their book and lock in profit margins, while prediction markets like this one are driven by traders risking real capital on their beliefs about the outcome. This market may price the match differently than traditional sports betting sites, sometimes offering sharper or more efficient pricing depending on trader participation and information flow at any given moment.
On Polymarket, traders set the odds by buying and selling outcome shares in an automated market maker system. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the collective belief of all active traders, with shares trading between 0 and 100 cents based on perceived probability. As new information emerges or trading volume shifts, prices adjust in real time, allowing you to enter or exit positions at market rates determined entirely by supply and demand.
This market resolves around Jul 5, 2026, once the match concludes and the result is verifiable from credible public sources. The outcome will be confirmed based on the official match result, determining which trader positions are correct. Until that point, prices may fluctuate as new developments, player form, or other factors influence trader expectations about who will win.
Several factors could shift this market significantly before the match takes place. Injury announcements or withdrawal news involving either player would trigger sharp repricing. Recent tournament results, head-to-head records, court surface performance data, and pre-match commentary from analysts can all influence trader sentiment. Weather conditions closer to the event date, betting line movements at sportsbooks, and any changes to tournament seeding or scheduling may also prompt traders to adjust their positions and move the odds.