ARCHIVE April 21, 2026
April 21, 2026 · AL East

New York Yankees vs Boston Red Sox

April 21, 2026Fenway ParkClear 47°F · 9 mph, Out To LF
AWAY
New York Yankees
14-9
4
vs
HOME
Boston Red Sox
9-14
0

Starting pitchers

AWAY · NYY
Luis Gil
Luis Gil
IP 6.1
HOME · BOS
Connelly Early
Connelly Early
IP 5.1

Lineups

AWAY · NYY
  1. 1 Amed Rosario 3B
  2. 2 Aaron Judge RF
  3. 3 Ben Rice 1B
  4. 4 Giancarlo Stanton DH
  5. 5 Cody Bellinger CF
  6. 6 Randal Grichuk LF
  7. 7 Jazz Chisholm Jr. 2B
  8. 8 José Caballero SS
  9. 9 Austin Wells C
HOME · BOS
  1. 1 Roman Anthony LF
  2. 2 Willson Contreras 1B
  3. 3 Masataka Yoshida DH
  4. 4 Wilyer Abreu RF
  5. 5 Trevor Story SS
  6. 6 Ceddanne Rafaela CF
  7. 7 Marcelo Mayer 2B
  8. 8 Caleb Durbin 3B
  9. 9 Carlos Narváez C

Box score

  123456789 R
NYY 010002010 4
BOS 000000000 0

Manager comparison

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

AWAY · NYY
Aaron Boone
C+ Lineup 1.5 R Bunts 0.0 R IBBs 1.1 R
HOME · BOS
Chad Tracy
C- Lineup 2.8 R Bunts 0.1 R IBBs 0.2 R Interim

Recent form

AWAY · NYY
7-3 L1 +26 run diff
LWLWWWWWLW
HOME · BOS
5-5 W1 -3 run diff
WLWWWLLWLL

Season series: 3-0 with NYY 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 · New York Yankees
  • Manager lineup cost −0.02 R/G Optimal arrangement projects 3.40 vs actual lineup 3.42
  • Player execution +0.58 R/G Players exceeded the lineup's 3.42 projection by 0.58 (scored 4)
  • Game variance +0.60 R/G Total game outcome vs optimal expectation

Rice 0-for-4 batting 3rd

HOME · Boston Red Sox
  • Manager lineup cost +0.08 R/G Optimal arrangement projects 4.87 vs actual lineup 4.80
  • Player execution −4.80 R/G Players fell 4.80 short of the lineup's 4.80 projection (scored 0)
  • Game variance −4.87 R/G Total game outcome vs optimal expectation

Anthony 0-for-3 batting 1st

COUNTERFACTUAL

Optimal lineups projected 3.4 – 4.9 — actual was 4 – 0.

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.