TOTAL VOLUME:
$134b
24H VOL:
$103,397,351
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,410,176,180
399,592
Markets across
30,097
events
MATCHED EVENTS:
2,622
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: May 31, 6:56 AM EST
Kalshi
Two professional tennis players compete in the second set of their Round of 16 match at the 2026 French Open Women's Singles tournament. The set will be won by one of the competitors.
Prediction market odds on Kalshi often differ from traditional sportsbook odds because they reflect real-time trader sentiment rather than bookmaker margins and risk management. Sportsbooks typically build in a commission spread, while prediction markets aggregate decentralized bets directly. For the Kostyuk versus Swiatek Set 2 winner, comparing Kalshi pricing to major sportsbooks can reveal whether the market views one player's chances as undervalued or overvalued. Discrepancies may reflect differences in how each venue weights recent form, head-to-head records, or surface conditions.
On Kalshi, the Marta Kostyuk versus Iga Swiatek Set 2 winner contract is priced as a binary outcome: either Kostyuk wins set 2 or she does not. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The current price reflects the probability traders assign to Kostyuk winning that specific set, with the contract trading at a level that balances buy and sell orders. As match conditions evolve—such as momentum shifts, player fatigue, or tactical adjustments during the first set—the Kalshi price adjusts to reflect updated expectations. Traders can enter or exit positions at any time before the market resolves.
The market is scheduled to resolve by May 31, 2026. Resolution is determined by the official result of set 2 in the Marta Kostyuk versus Iga Swiatek match. The outcome is binary: either Kostyuk wins set 2 or Swiatek does. The resolution relies on verified match data from the tournament organizer or recognized tennis authority. Once set 2 concludes and the official winner is confirmed, the market settles and traders receive payouts based on their positions.
Several factors could shift the Kalshi price before resolution. Set 1 performance is critical: if Kostyuk dominates the first set, traders may increase her chances in set 2, or vice versa if Swiatek takes control. Player fitness and injury status during the match will influence momentum and confidence. Tactical adjustments—such as serve placement, court positioning, or break-point conversion—often trigger repricing. Weather conditions, court speed, and crowd energy can also sway the outcome. Real-time commentary and visible fatigue levels typically drive the most immediate price movements as traders react to live match dynamics.