TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 22, 4:30 AM EST
Polymarket
This market refers to the tennis match between Raluca Serban and Mayar Sherif in the Brescia, originally scheduled for June 15, 2026 at 4:30AM ET. This market will resolve to 'Raluca Serban' if Raluca Serban advances against Mayar Sherif. This market will resolve to 'Mayar Sherif' if Mayar Sherif advances against Raluca Serban. 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 WTA Tour. A consensus of credible reporting may also be used.
This market refers to the tennis match between Raluca Serban and Mayar Sherif in the Brescia, originally scheduled for June 15, 2026 at 4:30AM ET. This market will resolve to 'Raluca Serban' if Raluca Serban advances against Mayar Sherif. This market will resolve to 'Mayar Sherif' if Mayar Sherif advances against Raluca Serban. 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 WTA Tour. A consensus of credible reporting may also be used.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and protect their margin, while prediction markets like this one are driven purely by trader belief—there is no house taking a cut on every side. As a result, prediction markets can sometimes price outcomes more efficiently, especially when informed traders have conviction. Comparing this market's implied probability to major sportsbook lines can reveal where smart money sees value or where public perception may be lagging behind reality.
On Polymarket, traders set prices by buying and selling outcome shares in an automated market maker pool. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price of each outcome reflects the ratio of shares held in the pool, with the implied probability derived from that ratio. As traders place orders, the price adjusts in real time, and larger trades move the price more dramatically than small ones. This mechanism ensures that the market continuously reprices based on new information, trader conviction, and order flow right up until the event concludes.
This market resolves around Jun 22, 2026, with the outcome confirmed once the event is verifiable from credible public reporting. The resolution hinges on the official result of the match—which player wins the contest. Once the match concludes and the result is documented by reliable sources, this market will settle accordingly. Traders holding shares in the winning outcome will receive their payout, while those on the losing side will see their position expire worthless.
Several factors could shift trader positioning before the match takes place. Recent form and head-to-head records may influence perception of each player's chances. Injury reports, court surface conditions, or weather forecasts closer to the event date could prompt repricing. News about either player's recent tournaments or training updates might also sway the market. Additionally, if one player is favored by the betting public or media consensus shifts, informed traders may react by taking contrarian positions. Real-time match momentum, once play begins, will drive final price movements.