ARCHIVE April 20, 2026
April 20, 2026 · AL East

Detroit Tigers vs Boston Red Sox

April 20, 2026Fenway ParkPartly Cloudy 47°F · 9 mph, Out To RF
AWAY
Detroit Tigers
12-11
6
vs
HOME
Boston Red Sox
9-13
8

Starting pitchers

AWAY · DET
Jack Flaherty
Jack Flaherty
IP 3.1
HOME · BOS
Sonny Gray
Sonny Gray
IP 2.2

Lineups

AWAY · DET
  1. 1 Kevin McGonigle SS
  2. 2 Gleyber Torres 2B
  3. 3 Colt Keith 1B
  4. 4 Riley Greene LF
  5. 5 Dillon Dingler DH
  6. 6 Kerry Carpenter RF
  7. 7 Matt Vierling CF
  8. 8 Hao-Yu Lee 3B
  9. 9 Jake Rogers C
HOME · BOS
  1. 1 Roman Anthony LF
  2. 2 Willson Contreras 1B
  3. 3 Wilyer Abreu RF
  4. 4 Masataka Yoshida DH
  5. 5 Trevor Story SS
  6. 6 Jarren Duran CF
  7. 7 Caleb Durbin 3B
  8. 8 Marcelo Mayer 2B
  9. 9 Carlos Narváez C

Box score

  123456789 R
DET 001101003 6
BOS 020001320 8

Manager comparison

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

AWAY · DET
A.J. Hinch
C- Lineup 2.7 R Bunts 0.2 R IBBs 0.1 R
HOME · BOS
Chad Tracy
C- Lineup 2.8 R Bunts 0.1 R IBBs 0.2 R Interim

Recent form

AWAY · DET
3-7 L4 -5 run diff
LLLLWWLWLL
HOME · BOS
5-5 W1 -3 run diff
WLWWWLLWLL

Season series: 2-5 with DET listed first across 7 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 · Detroit Tigers
  • Manager lineup cost −0.01 R/G Optimal arrangement projects 4.13 vs actual lineup 4.14
  • Player execution +1.86 R/G Players exceeded the lineup's 4.14 projection by 1.86 (scored 6)
  • Game variance +1.87 R/G Total game outcome vs optimal expectation

Lee 2-for-4 from the 8-hole

HOME · Boston Red Sox
  • Manager lineup cost +0.16 R/G Optimal arrangement projects 4.88 vs actual lineup 4.73
  • Player execution +3.27 R/G Players exceeded the lineup's 4.73 projection by 3.27 (scored 8)
  • Game variance +3.12 R/G Total game outcome vs optimal expectation

Abreu 0-for-4 batting 3rd

COUNTERFACTUAL

Optimal lineups projected 4.1 – 4.9 — actual was 6 – 8.

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.