// MLB · August 31, 2026

Mariners at Red Sox

8/31 - 6:45 PM EDT · Fenway Park · SEA 64-73 — BOS 74-63 · lines via DraftKings

The prices

MarketSEABOS
Moneyline+151-162
Run line+1.5
Total 7.5Over -119Under -101

What the market really thinks

SEABOS
Win chance (no-vig)39.2%60.8%
Break-even at the price39.8%61.8%

Both posted prices together imply more than 100% — that surplus (1.7% here) is what the book keeps. Strip it out and the market makes this SEA 39.2%, BOS 60.8%. The break-even row is the win rate you'd need at the posted price just to tread water — the gap between the two rows is the cost of the bet.

Prices move all day. The live version of this game — score, line movement and the rest of the board — is on today's board.

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