ARCHIVE April 12, 2026
April 12, 2026 · AL West

Houston Astros vs Seattle Mariners

April 12, 2026T-Mobile ParkCloudy 56°F · 4 mph, L To R
AWAY
Houston Astros
6-10
1
vs
HOME
Seattle Mariners
7-9
6

Starting pitchers

AWAY · HOU
Christian Roa
Christian Roa
IP 2.2
HOME · SEA
Logan Gilbert
Logan Gilbert
IP 7

Lineups

AWAY · HOU
  1. 1 Jose Altuve 2B
  2. 2 Yordan Alvarez DH
  3. 3 Isaac Paredes 3B
  4. 4 Christian Walker 1B
  5. 5 Cam Smith RF
  6. 6 Joey Loperfido LF
  7. 7 Yainer Diaz C
  8. 8 Taylor Trammell CF
  9. 9 Nick Allen SS
HOME · SEA
  1. 1 Brendan Donovan 3B
  2. 2 Cal Raleigh C
  3. 3 Julio Rodríguez CF
  4. 4 Josh Naylor 1B
  5. 5 Randy Arozarena LF
  6. 6 Luke Raley RF
  7. 7 J.P. Crawford SS
  8. 8 Dominic Canzone DH
  9. 9 Cole Young 2B

Box score

  123456789 R
HOU 000010000 1
SEA 112002000 6

Manager comparison

Both managers grade D+ / B- entering this matchup.

AWAY · HOU
Joe Espada
D+ Lineup 2.8 R Bunts 0.7 R IBBs 0.4 R
HOME · SEA
Dan Wilson
B- Lineup 1.3 R Bunts 0.2 R IBBs 0.8 R

Recent form

AWAY · HOU
5-4 W1 -2 run diff
WLWLWWLLW?
HOME · SEA
5-5 W2 +2 run diff
WWLWLLLWWL

Season series: 0-4 with HOU listed first across 4 prior meetings.

Tactical analysis

RunsLeft separates manager decisions from player execution from game variance. Each card below is the same three-number framework that drives the share cards on the SPA replay page.

AWAY · Houston Astros
  • Manager lineup cost +0.07 R/G Optimal arrangement projects 4.10 vs actual lineup 4.04
  • Player execution −3.04 R/G Players fell 3.04 short of the lineup's 4.04 projection (scored 1)
  • Game variance −3.10 R/G Total game outcome vs optimal expectation

Diaz HR from the 7-hole

HOME · Seattle Mariners
  • Manager lineup cost −0.02 R/G Optimal arrangement projects 4.92 vs actual lineup 4.94
  • Player execution +1.06 R/G Players exceeded the lineup's 4.94 projection by 1.06 (scored 6)
  • Game variance +1.08 R/G Total game outcome vs optimal expectation

Donovan 0-for-3 batting 1st

COUNTERFACTUAL

Optimal lineups projected 4.1 – 4.9 — actual was 1 – 6.

Keep reading

How RunsLeft analyzes games

Standard content on this page comes from the MLB Stats API. Tactical analysis comes from a per-game Monte Carlo: 10,000 simulated games against the opposing starter's ERA, both for the actual lineup the manager wrote and for the optimal arrangement of those nine players. The three numbers — manager cost, player execution, game variance — separate which part of the result was the lineup, the players, or the dice.

Read the full methodology.