← All picks for August 31, 2026
Seattle Mariners vs Boston Red Sox
August 31, 2026 — MLB Prediction & Betting Pick
Our model leans Boston Red Sox
On balance, more tracked inputs leaned Boston Red Sox (18 edges vs 6 for Seattle Mariners).
The model's lean aligns with the overall edge count. Both the machine-learning model and the raw feature comparison point the same direction for this game.
Matchup Breakdown
Recent form (last ~10 games) — leans Boston Red Sox
Looking at recent performance trends over the last ten games — including win rate, run differential, and offensive momentum — the matchup favors the Boston Red Sox.
- Boston Red Sox 0.500 vs Seattle Mariners 0.400 — leans Boston Red Sox
- Boston Red Sox 0 vs Seattle Mariners -2.85 — leans Boston Red Sox
- Boston Red Sox 4.30 vs Seattle Mariners 3.55 — leans Boston Red Sox
- Boston Red Sox 4.30 vs Seattle Mariners 6.40 — leans Boston Red Sox
- Boston Red Sox 0.333 vs Seattle Mariners 0 — leans Boston Red Sox
- Boston Red Sox 0.698 vs Seattle Mariners 0.376 — leans Boston Red Sox
Season to date — leans Boston Red Sox
Season-long stats including runs scored and allowed per game, home/road splits, and weighted offensive production (wRC+) the matchup favors the Boston Red Sox.
- Boston Red Sox 4.35 vs Seattle Mariners 3.87 — leans Boston Red Sox
- Boston Red Sox 3.75 vs Seattle Mariners 4.39 — leans Boston Red Sox
- Boston Red Sox 0.833 vs Seattle Mariners 0.333 — leans Boston Red Sox
- Boston Red Sox 92.6 vs Seattle Mariners 96.6 — leans Seattle Mariners
Starting pitching (recent starts) — leans Boston Red Sox
Evaluating the probable starters based on recent ERA, WHIP, strikeout rate, and pitching form trends, the matchup favors the Boston Red Sox.
- Boston Red Sox 2.29 vs Seattle Mariners 2.73 — leans Boston Red Sox
- Boston Red Sox 0.81 vs Seattle Mariners 1.18 — leans Boston Red Sox
- Boston Red Sox 11.44 vs Seattle Mariners 6 — leans Boston Red Sox
- Boston Red Sox 3.96 vs Seattle Mariners 1.14 — leans Seattle Mariners
- Boston Red Sox 3.18 vs Seattle Mariners 5.21 — leans Boston Red Sox
- Boston Red Sox 1.18 vs Seattle Mariners 1.32 — leans Boston Red Sox
- Boston Red Sox 4.81 vs Seattle Mariners 5.68 — leans Boston Red Sox
- Boston Red Sox 0 vs Seattle Mariners 0 — roughly even
Offense & matchup — leans Seattle Mariners
Analyzing recent offensive output (OBP, SLG) and platoon matchup data against the opposing starter's throwing arm, the matchup favors the Seattle Mariners.
- Boston Red Sox 0.368 vs Seattle Mariners 0.387 — leans Seattle Mariners
- Boston Red Sox 0.419 vs Seattle Mariners 0.488 — leans Seattle Mariners
- Boston Red Sox 0.384 vs Seattle Mariners 0.378 — roughly even
- Boston Red Sox 0.396 vs Seattle Mariners 0.480 — leans Seattle Mariners
- Boston Red Sox 0.388 vs Seattle Mariners 0.396 — roughly even
- Boston Red Sox 0.446 vs Seattle Mariners 0.472 — leans Seattle Mariners
- Boston Red Sox 0.702 vs Seattle Mariners 0.684 — roughly even
- Boston Red Sox 0.020 vs Seattle Mariners 0.009 — leans Boston Red Sox
Series & head-to-head — leans Boston Red Sox
Prior head-to-head meetings this season's training window — win rate and run differential between these clubs — the matchup favors the Boston Red Sox.
- Boston Red Sox 0.667 vs Seattle Mariners 0.333 — leans Boston Red Sox
- Boston Red Sox 2 vs Seattle Mariners -2 — leans Boston Red Sox
Betting Lines
Boston Red Sox -1.5 | O/U 7.5 (FanDuel)
Final Score
Seattle Mariners 8, Boston Red Sox 9 — Boston Red Sox win — Model pick was correct
This analysis is generated by a machine-learning model and is intended for
informational and entertainment purposes only. It does not constitute financial
or betting advice. Past model performance does not guarantee future results.
Please gamble responsibly.