ARCHIVE April 21, 2026
April 21, 2026 · NL West

Chicago White Sox vs Arizona Diamondbacks

April 21, 2026Chase FieldOvercast 89°F · 9 mph, R To L
AWAY
Chicago White Sox
9-14
11
vs
HOME
Arizona Diamondbacks
13-10
5

Starting pitchers

AWAY · CWS
Sean Burke
Sean Burke
IP 6
HOME · AZ
Merrill Kelly
Merrill Kelly
IP 4.1

Lineups

AWAY · CWS
  1. 1 Andrew Benintendi DH
  2. 2 Munetaka Murakami 1B
  3. 3 Miguel Vargas 3B
  4. 4 Colson Montgomery SS
  5. 5 Everson Pereira RF
  6. 6 Sam Antonacci LF
  7. 7 Chase Meidroth 2B
  8. 8 Tristan Peters CF
  9. 9 Reese McGuire C
HOME · AZ
  1. 1 Ketel Marte 2B
  2. 2 Corbin Carroll RF
  3. 3 Geraldo Perdomo SS
  4. 4 Adrian Del Castillo C
  5. 5 Lourdes Gurriel Jr. LF
  6. 6 Jose Fernandez DH
  7. 7 Nolan Arenado 3B
  8. 8 Ildemaro Vargas 1B
  9. 9 Alek Thomas CF

Box score

  123456789 R
CWS 430010003 11
AZ 000110003 5

Manager comparison

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

AWAY · CWS
Will Venable
D- Lineup 3.2 R Bunts 2.2 R IBBs 1.1 R
HOME · AZ
Torey Lovullo
C- Lineup 2.0 R Bunts 2.1 R IBBs 0.6 R

Recent form

AWAY · CWS
6-4 L3 +9 run diff
LLLWLWWWWW
HOME · AZ
3-7 L2 -15 run diff
LLWLLLLWLW

Season series: 2-1 with CWS 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 · Chicago White Sox
  • Manager lineup cost +0.10 R/G Optimal arrangement projects 4.86 vs actual lineup 4.76
  • Player execution +6.24 R/G Players exceeded the lineup's 4.76 projection by 6.24 (scored 11)
  • Game variance +6.14 R/G Total game outcome vs optimal expectation

Peters 3-for-5 from the 8-hole

HOME · Arizona Diamondbacks
  • Manager lineup cost +0.03 R/G Optimal arrangement projects 3.20 vs actual lineup 3.17
  • Player execution +1.83 R/G Players exceeded the lineup's 3.17 projection by 1.83 (scored 5)
  • Game variance +1.80 R/G Total game outcome vs optimal expectation

Vargas HR from the 8-hole

COUNTERFACTUAL

Optimal lineups projected 4.9 – 3.2 — actual was 11 – 5.

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.