ARCHIVE May 1, 2026
May 1, 2026 · AL East

Houston Astros vs Boston Red Sox

May 1, 2026Fenway ParkClear 59°F · 3 mph, Out To RF
AWAY
Houston Astros
12-21
1
vs
HOME
Boston Red Sox
13-19
3

Starting pitchers

AWAY · HOU
Mike Burrows
Mike Burrows
IP 6
HOME · BOS
Jake Bennett
Jake Bennett
IP 5

Lineups

AWAY · HOU
  1. 1 Carlos Correa SS
  2. 2 Yordan Alvarez DH
  3. 3 Isaac Paredes 3B
  4. 4 Christian Walker 1B
  5. 5 Jose Altuve 2B
  6. 6 Yainer Diaz C
  7. 7 Cam Smith RF
  8. 8 Brice Matthews CF
  9. 9 Dustin Harris LF
HOME · BOS
  1. 1 Jarren Duran LF
  2. 2 Willson Contreras 1B
  3. 3 Roman Anthony DH
  4. 4 Wilyer Abreu RF
  5. 5 Trevor Story SS
  6. 6 Marcelo Mayer 2B
  7. 7 Ceddanne Rafaela CF
  8. 8 Carlos Narváez C
  9. 9 Caleb Durbin 3B

Box score

  123456789 R
HOU 001000000 1
BOS 003000000 3

Manager comparison

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

AWAY · HOU
Joe Espada
D+ Lineup 2.8 R Bunts 0.7 R IBBs 0.4 R
HOME · BOS
Chad Tracy
C- Lineup 2.8 R Bunts 0.1 R IBBs 0.2 R Interim

Recent form

AWAY · HOU
5-4 W1 -2 run diff
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HOME · BOS
5-5 W1 -3 run diff
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Season series: 2-1 with HOU listed first across 3 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 −0.03 R/G Optimal arrangement projects 2.43 vs actual lineup 2.47
  • Player execution −1.47 R/G Players fell 1.47 short of the lineup's 2.47 projection (scored 1)
  • Game variance −1.43 R/G Total game outcome vs optimal expectation

Alvarez 0-for-5 batting 2nd

HOME · Boston Red Sox
  • Manager lineup cost +0.02 R/G Optimal arrangement projects 4.81 vs actual lineup 4.79
  • Player execution −1.79 R/G Players fell 1.79 short of the lineup's 4.79 projection (scored 3)
  • Game variance −1.81 R/G Total game outcome vs optimal expectation

Abreu 0-for-4 batting 4th

COUNTERFACTUAL

Optimal lineups projected 2.4 – 4.8 — actual was 1 – 3.

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.