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Seattle Mariners @ Boston Red Sox Recap

MLB · August 31, 2026 · Pre-game prediction preserved, outcome auto-graded against ESPN.

LOSS

This one missed — Seattle Mariners LOSS.

Pre-game, the Lakeshore Edge model picked Seattle Mariners at 41% against FanDuel's implied 41% — an edge of +5.2pt. The full reasoning is preserved below for audit.

Closing-line value vs Pinnacle: +4.7pp  ·  closed at 2.39 (41.8%)

Small Play Dog play
Seattle Mariners
+142 on FanDuel
Model 41%
Market 41%
Edge +5.2 pts

Solid 5.2% edge at FanDuel (2.42).

How the model got here

Each row is a stage in the probability calculation. The bar is the probability at that stage; the delta on the right is the shift from the previous stage.

Elo baseline
44.1%
Calibration offset
45.1% +1.0pp
Platt rescale
38.2% -6.9pp
Moneyline normalization (both sides to 100%)
41.5% +3.3pp

Model performance on Seattle Mariners picks (60d)

How this side has graded in the journal over the last 60 days. Small slice — context, not a guarantee.

Picks
12
W - L
3 - 9
Win rate
25%
Avg CLV
+3.1pt
ROI
-60.4%

Sports betting involves risk. Past model performance is no guarantee of future results. If gambling is a problem for you, call 1-800-GAMBLER (US) or visit ncpgambling.org for help.