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Justin Slaten
Boston Red Sox · RHP
#
63
Team
BOS · P
Debut
2024 · 3 MLB seasons

Justin Slaten

Age 28
Contract Value $791,500/yr
Size 6' 4" · 222
Throws RHP
Bats Right
From Longview, TX
1-4 W-L
Team profile →Rotation →
5.11
ERA
1.46
WHIP
12.0
K/9
2.2
BB/9
24.2
Innings
0
Starts
Justin Slaten season snapshot
Season stats
ERA
5.11
WHIP
1.46
K/9
12.0
BB/9
2.2
HR/9
1.46
IP
24.2
GS
0
W-L
1-4
Justin Slaten ERA trend
Last 6
Earned runs per start
Avg 0.2 ER / start

Justin Slaten game log

2026 season
DateOpponentIPHERKBBERA
Jul 22Baltimore Orioles1.110100.00
Jul 17Tampa Bay Rays100100.00
Jul 11New York Mets0.210210.00
Jul 9Chicago White Sox100100.00
Jul 7Chicago White Sox0.200200.00
Jul 5Los Angeles Angels121109.00
Jun 30Washington Nationals0.2212045.00
Jun 28New York Yankees110100.00
Jun 27New York Yankees0.200200.00
Jun 24Colorado Rockies1421018.00
Jun 23Colorado Rockies110000.00
Jun 19Seattle Mariners0.100100.00
Jun 18Toronto Blue Jays120100.00
Jun 13Texas Rangers110100.00
Jun 10Tampa Bay Rays0.2320090.00
Jun 7New York Yankees0.23421180.00
Jun 5New York Yankees100000.00
May 30Cleveland Guardians1.110210.00
May 22Minnesota Twins0.24411180.00
May 19Kansas City Royals100200.00
May 18Kansas City Royals100200.00
May 14Philadelphia Phillies0.210100.00
May 13Philadelphia Phillies110000.00
May 10Tampa Bay Rays100100.00
Apr 4San Diego Padres110100.00
Apr 3San Diego Padres100100.00
Mar 28Cincinnati Reds0.110110.00
Mar 26Cincinnati Reds100210.00

Justin Slaten season splits

Home / away / vs L-R · 2026
Home ERA
ERA4.66
Away ERA
ERA7.71
vs Left AVG
AVG0.286
vs Right AVG
AVG0.368
Justin Slaten monthly splits
ERA · IP · K · BB · WHIP per month
MonthGSERAIPKBBWHIP
Mar00.001.1322.25
Apr00.002.0200.50
May05.406.2921.35
Jun09.009.01112.00
Jul01.595.2810.88
Pitch arsenal
Usage and average velocity · 2026
FCCutter
43.7%93.4 mph
FFFour-seam FB
26.5%96.6 mph
STSweeper
17.0%86.1 mph
SISinker
10.1%97.1 mph
CUCurveball
2.7%84.6 mph

Performance vs teams

2026 starts · sorted by ERA
TeamERAGS
Baltimore Orioles
0.00
1
New York Mets
0.00
1
Chicago White Sox
0.00
2
Seattle Mariners
0.00
1
Toronto Blue Jays
0.00
1
Texas Rangers
0.00
1
Cleveland Guardians
0.00
1
Kansas City Royals
0.00
2
Philadelphia Phillies
0.00
2
San Diego Padres
0.00
2
Cincinnati Reds
0.00
2
Tampa Bay Rays
8.18
3
Los Angeles Angels
9.00
1
Colorado Rockies
9.00
2
New York Yankees
15.00
4
Washington Nationals
45.00
1
Minnesota Twins
180.00
1

Hot / Cold zones

Opponent results by strike zone area

AVG by zone

  • Zone 01: .000
  • Zone 02: .111
  • Zone 03: .500
  • Zone 04: .222
  • Zone 05: .526
  • Zone 06: .714
  • Zone 07: .000
  • Zone 08: .308
  • Zone 09: .000
  • Zone 11: .000
  • Zone 12: .200
  • Zone 13: .400
  • Zone 14: .273

OPS by zone

  • Zone 01: .000
  • Zone 02: .222
  • Zone 03: 1.750
  • Zone 04: .444
  • Zone 05: 1.632
  • Zone 06: 1.250
  • Zone 07: .000
  • Zone 08: .692
  • Zone 09: .000
  • Zone 11: .125
  • Zone 12: .400
  • Zone 13: .800
  • Zone 14: .813

SLG by zone

  • Zone 01: .000
  • Zone 02: .111
  • Zone 03: 1.250
  • Zone 04: .222
  • Zone 05: 1.105
  • Zone 06: .714
  • Zone 07: .000
  • Zone 08: .385
  • Zone 09: .000
  • Zone 11: .000
  • Zone 12: .200
  • Zone 13: .400
  • Zone 14: .455

OBP by zone

  • Zone 01: .000
  • Zone 02: .111
  • Zone 03: .500
  • Zone 04: .222
  • Zone 05: .526
  • Zone 06: .625
  • Zone 07: .000
  • Zone 08: .308
  • Zone 09: .000
  • Zone 11: .125
  • Zone 12: .200
  • Zone 13: .400
  • Zone 14: .500

earnedRunAverage by zone

  • Zone 01: -
  • Zone 02: -
  • Zone 03: -
  • Zone 04: -
  • Zone 05: -
  • Zone 06: -
  • Zone 07: -
  • Zone 08: -
  • Zone 09: -
  • Zone 11: -
  • Zone 12: -
  • Zone 13: -
  • Zone 14: -

numberOfStrikes by zone

  • Zone 01: 14.00
  • Zone 02: 28.00
  • Zone 03: 11.00
  • Zone 04: 15.00
  • Zone 05: 14.00
  • Zone 06: 19.00
  • Zone 07: 15.00
  • Zone 08: 16.00
  • Zone 09: 21.00
  • Zone 11: 11.00
  • Zone 12: 13.00
  • Zone 13: 5.00
  • Zone 14: 19.00

numberOfPitches by zone

  • Zone 01: 18.00
  • Zone 02: 36.00
  • Zone 03: 14.00
  • Zone 04: 20.00
  • Zone 05: 32.00
  • Zone 06: 26.00
  • Zone 07: 17.00
  • Zone 08: 27.00
  • Zone 09: 29.00
  • Zone 11: 49.00
  • Zone 12: 25.00
  • Zone 13: 19.00
  • Zone 14: 95.00
0.4000.3000.200
.400.000.200.273.000.111.500.222.526.714.000.308.000
0.4000.3000.200

Last 10 matchups

vs Baltimore Orioles — 2026-07-22
0ER · 1.1ip
→
vs Tampa Bay Rays — 2026-07-17
0ER · 1ip
→
vs New York Mets — 2026-07-11
0ER · 0.2ip
→
vs Chicago White Sox — 2026-07-09
0ER · 1ip
→
vs Chicago White Sox — 2026-07-07
0ER · 0.2ip
→
vs Los Angeles Angels — 2026-07-05
1ER · 1ip
→
vs Washington Nationals — 2026-06-30
1ER · 0.2ip
→
vs New York Yankees — 2026-06-28
0ER · 1ip
→
vs New York Yankees — 2026-06-27
0ER · 0.2ip
→
vs Colorado Rockies — 2026-06-24
2ER · 1ip
→

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