← All picks for September 18, 2026
Seattle Mariners vs Colorado Rockies
September 18, 2026 — MLB Prediction & Betting Pick
Our model leans Seattle Mariners
Tracked inputs were split fairly evenly between the two sides.
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 Seattle Mariners
Looking at recent performance trends over the last ten games — including win rate, run differential, and offensive momentum — the matchup favors the Seattle Mariners.
- Colorado Rockies 0.200 vs Seattle Mariners 0.350 — leans Seattle Mariners
- Colorado Rockies -2.25 vs Seattle Mariners -0.25 — leans Seattle Mariners
- Colorado Rockies 4.05 vs Seattle Mariners 4.90 — leans Seattle Mariners
- Colorado Rockies 6.30 vs Seattle Mariners 5.15 — leans Seattle Mariners
- Colorado Rockies 0.333 vs Seattle Mariners 0.333 — roughly even
- Colorado Rockies 1.152 vs Seattle Mariners 0.816 — leans Colorado Rockies
Season to date — leans Colorado Rockies
Season-long stats including runs scored and allowed per game, home/road splits, and weighted offensive production (wRC+) the matchup favors the Colorado Rockies.
- Colorado Rockies 4.63 vs Seattle Mariners 4.08 — leans Colorado Rockies
- Colorado Rockies 5.77 vs Seattle Mariners 4.44 — leans Seattle Mariners
- Colorado Rockies 0.400 vs Seattle Mariners 0.333 — leans Colorado Rockies
- Colorado Rockies 98.3 vs Seattle Mariners 96.6 — roughly even
Starting pitching (recent starts) — leans Colorado Rockies
Evaluating the probable starters based on recent ERA, WHIP, strikeout rate, and pitching form trends, the matchup favors the Colorado Rockies.
- Colorado Rockies 3 vs Seattle Mariners 6.11 — leans Colorado Rockies
- Colorado Rockies 1 vs Seattle Mariners 1.32 — leans Colorado Rockies
- Colorado Rockies 8 vs Seattle Mariners 4.50 — leans Colorado Rockies
- Colorado Rockies 0 vs Seattle Mariners -6.54 — leans Seattle Mariners
- Colorado Rockies 3.24 vs Seattle Mariners 4.34 — leans Colorado Rockies
- Colorado Rockies 1.44 vs Seattle Mariners 1.29 — leans Seattle Mariners
- Colorado Rockies 3.82 vs Seattle Mariners 4.60 — leans Colorado Rockies
- Colorado Rockies 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.
- Colorado Rockies 0.390 vs Seattle Mariners 0.387 — roughly even
- Colorado Rockies 0.484 vs Seattle Mariners 0.488 — roughly even
- Colorado Rockies 0.374 vs Seattle Mariners 0.383 — roughly even
- Colorado Rockies 0.480 vs Seattle Mariners 0.504 — leans Seattle Mariners
- Colorado Rockies 0.392 vs Seattle Mariners 0.387 — roughly even
- Colorado Rockies 0.544 vs Seattle Mariners 0.483 — leans Colorado Rockies
- Colorado Rockies 0.673 vs Seattle Mariners 0.916 — leans Seattle Mariners
- Colorado Rockies 0.001 vs Seattle Mariners -0.001 — roughly even
Series & head-to-head — Mixed
Head-to-head history between Seattle Mariners and Colorado Rockies does not clearly favor either side.
- Colorado Rockies 0.500 vs Seattle Mariners 0.500 — roughly even
- Colorado Rockies 0 vs Seattle Mariners 0 — roughly even
Betting Lines
Seattle Mariners +1.5 | O/U 10.5 (FanDuel)
Final Score
Seattle Mariners 5, Colorado Rockies 4 — Seattle Mariners 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.
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