THECOVER
Preview·8:10 PM EDT·Coors Field

Mariners vs Rockies Prediction, Picks, Best Bets & Parlay

Free MLB prediction and picks for Friday, September 18, 2026 · powered by DataStreak

AWAY
Seattle Mariners
Seattle Mariners
69-78 · W2
HOME
Colorado Rockies
Colorado Rockies
55-91 · L4

Mariners vs Rockies Prediction

Hard to ignore what Mariners have been doing lately. W2 and the offense looking like it forgot how to be stopped.

Two teams, one slate of props, and a model that's been right more than it's been wrong. The plays below earned their spot.

Mariners vs Rockies Picks

Books have not posted player props for SEA at COL yet. Lines usually go up a few hours before first pitch or tip-off; check back closer to game time. See all of today’s free picks across the slate.

Injury Report

18 listed
JUST IN: Will Wilson 10-day-il → 60-Day IL (Thumb) · Nick Davila 15-day-il → 60-Day IL (Shoulder) · Luke Raley 10-day-il → 60-Day IL (Forearm) · Matt Brash 15-day-il → 60-Day IL (Lat) · Colt Emerson 10-day-il → 60-Day IL (Wrist) · Emerson Hancock day-to-day → 15-Day IL (Groin) · Brendan Donovan day-to-day → 7-Day IL (Concussion) · Cole Wilcox out → 15-Day IL (Oblique) · Jose Quintana 15-day-il → 60-Day IL (Elbow) · Chase Dollander 15-day-il → 60-Day IL (Elbow) · Welinton Herrera 15-day-il → 60-Day IL (Elbow) · Kyle Freeland day-to-day → 15-Day IL (Neck) · Willi Castro day-to-day → 10-Day IL (Foot)
SEA
  • Will Wilson
    Thumb
    60-Day IL
  • Nick Davila
    Shoulder
    60-Day IL
  • Luke Raley
    Forearm
    60-Day IL
  • Matt Brash
    Lat
    60-Day IL
  • Colt Emerson
    Wrist
    60-Day IL
  • Logan Evans
    Elbow
    60-Day IL
  • Emerson Hancock
    Groin
    15-Day IL
  • Brendan Donovan
    Concussion
    7-Day IL
  • Cole Wilcox
    Oblique
    15-Day IL
COL
  • Jose Quintana
    Elbow
    60-Day IL
  • Chase Dollander
    Elbow
    60-Day IL
  • Welinton Herrera
    Elbow
    60-Day IL
  • Pierson Ohl
    Elbow
    60-Day IL
  • McCade Brown
    Shoulder
    60-Day IL
  • Kris Bryant
    Back
    60-Day IL
  • RJ Petit
    Elbow
    60-Day IL
  • Kyle Freeland
    Neck
    15-Day IL
  • Willi Castro
    Foot
    10-Day IL

Team Trends

Seattle Mariners
  • • Failed to cover in 6 of the last 10 games
  • • Seattle Mariners 27-47 ATS at home this season
  • • Seattle Mariners 25-47 ATS on the road this season
  • • Seattle Mariners 38-72 ATS as a favorite this season
  • • The over has hit in 7 of the last 10
Season ATS
52-94 ATS
L10 ATS
4-6 L10 ATS
L5 ATS
1-4 L5 ATS
Home ATS
27-47 home ATS
Road ATS
25-47 road ATS
As Fav
38-72 ATS as favorite
As Dog
12-22 ATS as dog
L10 O/U
7-3 O/U
L10 SU
5-5
Colorado Rockies
  • • Colorado Rockies 7-3 ATS over the last 10
  • • Colorado Rockies 74-66 ATS as an underdog
Season ATS
77-68 ATS
L10 ATS
7-3 L10 ATS
L5 ATS
2-3 L5 ATS
Home ATS
37-34 home ATS
Road ATS
40-34 road ATS
As Fav
3-2 ATS as favorite
As Dog
74-66 ATS as dog
L10 O/U
4-6 O/U
L10 SU
3-7

Head-to-Head

SEA 4-1 over COL

DateMatchupScoreWinner
2025-09-26COL @ SEA2–6SEA
2025-09-25COL @ SEA2–9SEA
2025-09-24COL @ SEA3–4SEA
2024-04-22SEA @ COL10–2SEA
2024-04-21SEA @ COL1–2COL
Picks, parlays, injuries, trends, and matchup context powered byDataStreak

The Final Word

If the picks hit, you'll know tomorrow. If they don't, you'll know that too. Tail or fade, it's free either way.

Mariners vs Rockies FAQ

Where can I find free Mariners vs Rockies picks for Friday, September 18, 2026?

Today's algorithmic plays didn't include Mariners vs Rockies, but our full free MLB picks page covers every matchup that did clear the quality bar.

What's the prediction for Mariners vs Rockies?

Our prediction is built from team form (records, recent results, win/loss streaks), live moneyline and spread odds across major US books, and DataStreak's algorithmic player-prop research. Every claim on this page is data-backed — no hot takes.

Are these Mariners vs Rockies best bets really free?

Yes. Every prediction, pick, and parlay on this page is free, no signup, no paywall.

How is The Cover different from Covers, ATS, or pay-for-pick services?

Three things. (1) Free, full stop — every page, every day. (2) Picks are algorithmic with transparent quality bars (8+ game streak, 75%+ hit rate over 20 games), not opinion columns. (3) Modern UX: live odds, push notifications, comments, mobile-first PWA install.