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: Jun 27, 1:00 PM EST
Kalshi
Marc Majdandzic and Jesse De Jager compete in a professional tennis semifinal match at the 2026 M15 Alkmaar tournament on June 27. The winner of this match advances in the tournament.
This event covers the Majdandzic vs De Jager professional tennis match in the 2026 M15 Alkmaar Semifinal. Resolution requires that a ball be played in the match. If the match does not occur before play begins due to injury, walkover, forfeiture, or other cancellation, all markets resolve to $0.50. If a player withdraws or forfeits after the match has started, that player's market resolves to No. If the match is postponed or delayed, markets remain open and close following the rescheduled match completion within two weeks.
Prediction market odds and sportsbook odds often diverge because they serve different purposes. Sportsbooks set lines to balance action and manage risk, while prediction markets reflect pure trader belief about outcomes. This market's current odds may differ meaningfully from what traditional sportsbooks offer, since traders here are directly wagering on the result without a bookmaker's margin. Comparing the two can reveal where public opinion on the fight outcome concentrates most strongly and where sharp bettors see value.
This market resolves around Jun 28, 2026, once the fight concludes and the result is verifiable from credible public reporting. The outcome will be confirmed based on the official match result, determining which trader positions are correct. Until that date, prices may continue to shift as new developments emerge. Resolution timing depends on the actual event schedule, so monitor announcements for any changes to the fight date or format.
Several catalysts could shift prices significantly before resolution. Fighter announcements—such as training updates, statements about strategy, or health disclosures—often trigger sharp moves. Media coverage and expert commentary can sway trader sentiment, as can betting action from high-profile accounts. Weigh-in results, recent fight footage, or changes to the event card may also influence the odds. Close to the event date, final odds typically tighten as uncertainty resolves and the market converges on a consensus forecast.