TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 30, 10:32 AM EST
Kalshi
Karen Khachanov and Billy Harris compete in the first set of their 2026 Wimbledon Men's Singles Round of 128 match on June 29. The winner of set 1 determines the market outcome.
Resolution is determined by which player wins set 1 in the professional tennis match. If the match does not occur before play begins due to injury, walkover, forfeiture, or cancellation, the market resolves to fair price. Postponements or delays keep the market open until the rescheduled match concludes within two weeks. If a player retires, markets that can be unconditionally settled based on completed play resolve accordingly; those that cannot are settled at fair market price at the Exchange's discretion.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and manage risk, while prediction markets aggregate the beliefs of traders risking real capital on outcomes. This market aggregates dispersed information from participants who profit by accurately forecasting the Set 1 winner, potentially offering an alternative perspective to traditional sports betting lines. Comparing the two can reveal where consensus differs and highlight potential value opportunities.
On Kalshi, this market is priced through continuous order-book trading, where buyers and sellers submit bids and asks that determine the contract value. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price reflects the collective probability estimate of traders at any given moment. As new information emerges or sentiment shifts, participants adjust their positions, moving the price up or down. This mechanism ensures that the market price continuously incorporates available information about Khachanov's and Harris's likelihood of winning the first set.
This market resolves around Jun 29, 2026, once the Set 1 result is verified against credible public sources. The outcome is determined by the actual winner of the first set in the Khachanov vs Harris match. Resolution occurs after the set concludes and the result is confirmed through established sports reporting channels. Traders holding positions on the correct outcome receive their payout, while incorrect positions expire worthless.
Several factors could shift this market before resolution. Recent form and head-to-head records between the two players often influence trader positioning. Injury reports, court surface conditions, and weather forecasts closer to match day can trigger repricing. Tournament context, seeding, and momentum from earlier rounds also matter. Breaking news about either player's fitness or mental state may prompt rapid adjustments. As the match date approaches, increased media coverage and expert analysis typically drive higher trading volume and price volatility in this market.