TOTAL VOLUME:
$134.2b
24H VOL:
$126,590,312
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,439,516,703
404,175
Markets across
30,277
events
MATCHED EVENTS:
2,685
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 24, 10:35 AM EST
Kalshi
Mackenzie McDonald and Roberto Carballes Baena compete in the second round of qualifying for the 2026 Wimbledon Men's Singles tournament on June 24. One of these professional tennis players will advance through this qualifying match.
This market covers the McDonald vs Carballes Baena professional tennis match in the 2026 Wimbledon Men Singles Qualification Round 2. The market resolves to Yes for whichever player wins the match, provided a ball has been played. If the match does not occur before it begins—due to injury, walkover, forfeiture, or other cancellation—the market resolves to a fair price per standard rules. Should the match be postponed or delayed, the market remains open and closes only after the rescheduled match concludes, within a two-week window.
Prediction market odds and sportsbook odds often diverge because they reflect different participant bases and incentive structures. Sportsbooks set lines to balance action and lock in profit margins, while prediction markets like this one are driven by traders seeking to profit from accurate forecasts. This market aggregates dispersed knowledge from many participants, which can sometimes reveal edges that traditional oddsmakers miss. Comparing the two can highlight where public perception and informed trader positioning differ most significantly.
On Kalshi, this market is priced through an order-book mechanism where traders directly buy and sell outcome shares at prices they set themselves. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. The price of each outcome reflects the cumulative bids and asks from all active traders, with the spread between buy and sell prices tightening as more liquidity enters the market. As the match date approaches and new information surfaces, traders adjust their positions, causing prices to shift and the implied probabilities to update in real time.
This market resolves around Jun 24, 2026, once the match concludes and the result is verified against credible public sources. The outcome will be determined by the official match result, confirming which player wins the tennis encounter. Until that point, traders can continue to buy and sell shares as odds fluctuate based on pre-match news, player form, and shifting market sentiment.
Several factors could shift odds in this market before resolution. Injury announcements or fitness updates about either player would likely trigger sharp price moves, as would recent tournament results or head-to-head record developments. Court surface conditions, weather forecasts, and betting-market activity on major sportsbooks can also influence trader positioning. Media coverage highlighting form, motivation, or tactical matchups may prompt reassessment, and any last-minute lineup changes or withdrawal news would cause immediate repricing.