Preview·9:40 PM EDT·T-Mobile Park

Astros vs Mariners Prediction, Picks, Best Bets & Parlay

Free MLB prediction and picks for Tuesday, September 22, 2026 · powered by DataStreak

AWAY

Houston Astros

75-75 · L3

HOME

Seattle Mariners

70-81 · L2

Astros vs Mariners Prediction

Not the marquee game on the board, not the worst one either. Picks make it more interesting than the stats sheet.

Prop angles are where the edge lives. Live odds, current streaks, and the picks our partner DataStreak likes are all below.

Astros vs Mariners Picks

Books have not posted player props for HOU at SEA 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

15 listed

JUST IN: Mike Burrows 15-day-il → 60-Day IL (Elbow) · Carlos Correa 10-day-il → 60-Day IL (Ankle) · Brice Matthews 10-day-il → 60-Day IL (Knee) · Taylor Trammell 10-day-il → Paternity (Personal) · Luke Raley 10-day-il → 60-Day IL (Forearm) · Matt Brash 15-day-il → 60-Day IL (Lat) · Will Wilson 10-day-il → 60-Day IL (Thumb) · Nick Davila 15-day-il → 60-Day IL (Shoulder) · 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)

HOU

Mike Burrows
Elbow·Since Aug 1
60-Day IL
Carlos Correa
Ankle·Since May 4
60-Day IL
Brice Matthews
Knee·Since Aug 1
60-Day IL
Brandon Walter
Elbow·Since May 7
60-Day IL
Taylor Trammell
Personal·Since Sep 14
Paternity
Steven Okert
Hamstring·Since Sep 3
15-Day IL

SEA

Luke Raley
Forearm·Since Aug 1
60-Day IL
Matt Brash
Lat·Since Jun 9
60-Day IL
Will Wilson
Thumb·Since May 1
60-Day IL
Nick Davila
Shoulder·Since Aug 30
60-Day IL
Colt Emerson
Wrist·Since Aug 13
60-Day IL
Logan Evans
Elbow·Since Mar 20
60-Day IL
Emerson Hancock
Groin·Since Aug 29
15-Day IL
Brendan Donovan
Concussion·Since Aug 22
7-Day IL
Cole Wilcox
Oblique·Since Aug 6
15-Day IL

Team Trends

Houston Astros

• Houston Astros 7-3 ATS over the last 10
• Houston Astros 37-38 ATS at home this season
• Houston Astros 25-35 ATS as a favorite this season
• Houston Astros 49-36 ATS as an underdog
• The under has hit in 7 of the last 10

Season ATS: 76-74 ATS
L10 ATS: 7-3 L10 ATS
L5 ATS: 2-3 L5 ATS
Home ATS: 37-38 home ATS
Road ATS: 39-36 road ATS
As Fav: 25-35 ATS as favorite
As Dog: 49-36 ATS as dog
L10 O/U: 3-7 O/U
L10 SU: 4-6

Seattle Mariners

• Failed to cover in 7 of the last 10 games
• Seattle Mariners 28-47 ATS at home this season
• Seattle Mariners 26-49 ATS on the road this season
• Seattle Mariners 40-74 ATS as a favorite this season
• The over has hit in 7 of the last 10

Season ATS: 54-96 ATS
L10 ATS: 3-7 L10 ATS
L5 ATS: 2-3 L5 ATS
Home ATS: 28-47 home ATS
Road ATS: 26-49 road ATS
As Fav: 40-74 ATS as favorite
As Dog: 12-22 ATS as dog
L10 O/U: 7-2-1 O/U
L10 SU: 4-6

Visit DataStreak for full details

Head-to-Head

SEA 3-2 over HOU (3-2 ATS)

Date	Matchup	Score	Winner
2026-08-16	SEA @ HOU	3–2	SEA
2026-08-15	SEA @ HOU	10–5	SEA
2026-08-15	SEA @ HOU	7–10	HOU
2026-05-14	SEA @ HOU	8–3	SEA
2026-05-14	SEA @ HOU	3–4	HOU

Picks, parlays, injuries, trends, and matchup context powered byDataStreak

The Final Word

Some games you watch for the result. Some you watch for the props. Tonight is both.

Astros vs Mariners FAQ

Where can I find free Astros vs Mariners picks for Tuesday, September 22, 2026?

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

What's the prediction for Astros vs Mariners?

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 Astros vs Mariners 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.