| Outcome | Probability | Yes Bid | Yes Ask | 24h Change | Volume | |
|---|---|---|---|---|---|---|
| Mackenzie McDonald | 0% | 57¢ | 99¢ | — | $0 | Trade → |
| Trevor Svajda | 0% | 32¢ | 99¢ | — | $0 | Trade → |
This market asks which player—Trevor Svajda or Mackenzie McDonald—will win the first set of their match. First-set outcomes are important for short-term trading and in-play strategies because they resolve quickly and often reflect match momentum.
Trevor Svajda is an emerging professional who has competed in qualifying and tour-level events; Mackenzie McDonald is a more established tour player with collegiate and ATP-level experience. Their relative experience, recent match play, and the playing surface all shape how the opening set is likely to play out.
Market odds represent the consensus of traders and will move as new information arrives (injuries, starting server, weather, late withdrawals). Interpret odds as a live summary of market beliefs rather than a fixed prediction from a single source.
The event page lists the close time as TBD. Typically the market will close at or before the scheduled match start and will be settled based on the official recorded result of the first set; exact timing and any exceptions are determined by the platform's event rules.
The winner of the first completed set as shown in the official tournament score is the market outcome. Tiebreaks that decide the first set count toward the set winner; if the first set is never completed, settlement follows the platform's rulebook.
If a retirement or abandonment prevents completion of the first set, many markets follow platform-specific rules which can result in voiding or special settlement; if the set was completed before retirement, the completed-set winner determines the market. Check KALSHI's official rules for the definitive procedure.
Key movers include an early service break, an apparent injury or medical timeout, weather delays, a surprise change in who serves first, or any late pre-match withdrawal—each can materially change traders' expectations for the opening set.
Consult official tournament scoreboards and player profiles on ATP/ITF sites, reputable tennis statistics databases, recent match reports and highlights, and verified team or tournament announcements for injuries or withdrawals to form an evidence-based view.