Parlay: Kansas City Royals VS Seattle Mariners 2025-07-03

Best Same-Game Parlay: Seattle Mariners Moneyline + Under 7.0 Runs
Bookmaker: DraftKings
Odds:
- Mariners Moneyline: -183 (1.64 decimal)
- Under 7.0 Runs: -111 (1.99 decimal)

Combined Implied Probability:
- Mariners win: 57.4% (100 / (183 + 100))
- Under 7.0 runs: 50.3% (1 / 1.99)
- Total implied probability: 28.9% (57.4% × 50.3%)

Payout:
- +227 (Risk $100 to win $227)

Why This Works:
1. Mariners’ Moneyline Edge: Seattle is a strong favorite (-183) with a 2.75 ERA starter (Bryan Woo) and a lineup that averages 1.3 HRs/game. The model projects a win, and their 29-25 record as favorites adds confidence.
2. Under 7.0 Runs: The Royals rank last in MLB with 58 HRs, and their starter (Seth Lugo) has a 2.74 ERA but limited power. The model’s 3-2 projection aligns with the Under, and the combined implied probability (28.9%) suggests value.

Avoid Over/Under Parlays: The Over 7.0 runs (+128) has lower implied probability (54.6%) and less alignment with the model’s low-scoring prediction.

Final Note: Stick with DraftKings for this parlay to avoid cross-bookmaker issues. The Mariners’ offense is potent, but the Royals’ lack of power and a tight game (3-2 model projection) make the Under a safer, higher-probability leg.

Created: July 3, 2025, 7:32 a.m. GMT