| Outcome | Probability | Yes Bid | Yes Ask | 24h Change | Volume | |
|---|---|---|---|---|---|---|
| Washington wins 1st half | 0% | 0¢ | 0¢ | — | $0 | Trade → |
| Tie | 0% | 0¢ | 0¢ | — | $0 | Trade → |
| Boston wins 1st half | 0% | 0¢ | 0¢ | — | $0 | Trade → |
This market asks which team — Washington or Boston — will be leading at the end of the first half (halftime) of their matchup. It matters for traders who prefer short-duration outcomes and for anyone evaluating how early-game factors shape the final result.
The first half winner market isolates performance through the game's first two quarters, so it emphasizes starting lineups, opening strategies and early rotations rather than second-half adjustments. Historical head-to-head tendencies and each team’s typical opening pace or defensive approach can influence first-half edges, but those patterns can change quickly with personnel, rest, or coaching choices.
Market odds represent the consensus of participants about which team is likely to lead at halftime and will update as new information (injuries, starters, pace indicators) becomes available; use them as a real-time indicator of market expectations, not a certainty.
The exact close time is shown on the KALSHI event page; platforms typically close first-half markets at or just before the scheduled game tip-off, so check the event listing for the definitive close time.
This market offers three mutually exclusive outcomes: Washington leading at halftime, Boston leading at halftime, or the score tied at halftime. Settlement is based on the official score at the end of the first half as recorded by the league; if the score is exactly even at that moment the tie outcome resolves as the winner.
Watch official injury reports, last-minute starter confirmations, coach comments about rotation or minutes for key players, travel/rest notes and any lineup announcements from either team; these items often trigger the largest market reactions for first-half markets.
Substantial movement shortly before tip-off usually reflects new, nonpublic or late-breaking information (e.g., a surprise scratch or a confirmed starting lineup). Use such swings as signals to verify official sources — roster, injury, and coach statements — before changing position.
Overtime does not affect this market because settlement is determined solely by the score at official halftime. In the event of postponement or an incomplete first half, settlement follows KALSHI’s event rules — typically the market will reference the league’s official status or be voided if halftime is not completed, so consult the platform’s rules for specifics.