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: Jun 30, 9:51 AM EST
Kalshi
This event group covers a professional tennis match between Madison Sieg and Daphnee Mpetshi Perricard at the ITF Women's tournament in Aix-Les-Bains, scheduled for June 29, 2026 at 11:15 AM ET. Markets span match completion, head-to-head winner, set winners, game totals across multiple thresholds, and set handicap outcomes.
This market refers to the tennis match between Madison Sieg and Daphnee Mpetshi Perricard in the ITF Women Aix-Les-Bains, originally scheduled for June 29, 2026 at 11:15AM ET. This market will resolve to 'Madison Sieg' if Madison Sieg advances against Daphnee Mpetshi Perricard. This market will resolve to 'Daphnee Mpetshi Perricard' if Daphnee Mpetshi Perricard advances against Madison Sieg. 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.
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 play has started, that player's market resolves to No. If the match is postponed or delayed, markets remain open and close after the rescheduled match concludes within two weeks.
Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform attracts different trader demographics, liquidity pools, and fee structures, all of which influence price formation. Polymarket and Kalshi may also have distinct user bases with varying risk appetites and information access. Order flow timing, platform-specific incentives, and differences in how each venue handles market depth can cause temporary or sustained price gaps. Arbitrageurs often exploit these spreads, but friction costs and withdrawal delays may prevent full convergence. Monitoring both venues helps you identify mispricings and understand where informed traders are concentrating their positions.
Player injury reports, recent form and head-to-head records, court surface conditions, and weather forecasts are primary catalysts for price movement. Betting syndicate activity and sharp money flowing into one side can signal new information or model updates. Tournament seeding changes, opponent withdrawals, or late-breaking news about either player's fitness will likely trigger volatility. Media coverage and expert commentary may also shift retail trader sentiment. Close monitoring of tennis news feeds and social media chatter from the professional community often precedes measurable odds shifts on this market.