A single game's result determines which bets resolve and who gets paid on the market.
Moneyline contracts pay on the winning team. Spread contracts require a specific winning margin and totals depend on the combined runs versus thresholds like 13.5–17.5.
Starting pitchers, everyday lineups, and bullpen depth from both teams determine run prevention and late-inning risk.
Managers' pinch-hitting and defensive choices matter too. Umpire strike-zone consistency and league officials' rulings influence scoring and margins.
Pitching matchups and recent workloads shift probabilities more than seasonal records. Left-right splits, bullpen freshness, and how many innings a starter throws change expected run production.
Weather, wind, and ballpark factors push totals up or down. Late scratches and in-game momentum swings can flip spreads quickly.
Before first pitch, check official starting pitcher announcements and the published lineups about 60–120 minutes prior. Late scratches or a bullpen-only start will materially change spread and total odds.
Also monitor the forecast and wind, early pitch counts, first-inning scoring, and any ejections or delays that alter run expectations.