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: Aug 31, 9:51 PM EST
Kalshi
This market focuses on predicting which player will win the first set in an upcoming tennis match between Anastasia Potapova and Tereza Valentova at the 2026 US Open. The outcome depends solely on the result of the first set, regardless of the overall match result. Betting on this market involves assessing the players' early-game performance and strategies.
If Anastasia Potapova wins set 1 in the Anastasia Potapova vs Tereza Valentova professional tennis match in the 2026 US Open Women Singles Round Of 128, then the market resolves to Yes. If Tereza Valentova wins set 1 in the Anastasia Potapova vs Tereza Valentova professional tennis match in the 2026 US Open Women Singles Round Of 128, then the market resolves to Yes.
On Kalshi, this market reflects trader sentiment rather than traditional sportsbook lines. While sportsbooks may incorporate additional factors like historical performance and public betting trends, prediction markets focus purely on the likelihood of outcomes as assessed by participants. This can lead to divergence, especially when market sentiment shifts rapidly. Traders often monitor both sources to identify potential value gaps, though Kalshi's odds are driven exclusively by user activity and liquidity within the platform. The dynamics of the Set 1 winner market may therefore differ noticeably from conventional sportsbook pricing.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, traders collectively set the price through buying and selling contracts that represent each possible outcome. The current implied probability reflects the balance of buy and sell orders, with market depth and recent trades shaping the odds dynamically. Volume of $9 helps indicate how much activity is driving price discovery.
This market resolves around Aug 30, 2026, with the outcome confirmed once the match result is verifiable from credible public reporting. The winner of the first set will be the official result, closing all positions based on that definitive match detail.
Several key developments could influence this market before Aug 30, 2026. Player form in the lead-up matches, injury updates, and any strategic changes may shift trader sentiment. Weather conditions or surface specifications, if applicable, might also affect performance expectations. Media commentary and expert analysis following practice sessions can drive volume and price adjustments. As the tournament progresses, early set results from related matches may serve as indirect indicators, potentially impacting the perceived chances of each competitor in this market.