Season Schedule
OffSTRegASGRegPostWSOff
Road to Playoffs
Open board →
Playoff odds, bubble teams & races — 30 clubs
5in the bubble
Mark Leiter Jr.
Athletics · RHP
#
38
Team
ATH · P
Debut
2017 · 10 MLB seasons

Mark Leiter Jr.

Age 35
Contract Value $2,850,000/yr
Size 6' 0" · 210
Throws RHP
Bats Right
From Fort Lauderdale, FL
0-1 W-L
Team profile →Rotation →
4.28
ERA
1.31
WHIP
10.2
K/9
2.9
BB/9
33.2
Innings
0
Starts
15-day ILMark Leiter Jr. is on the injured list since Jul 21, 2026.
Mark Leiter Jr. season snapshot
Season stats
ERA
4.28
WHIP
1.31
K/9
10.2
BB/9
2.9
HR/9
0.53
IP
33.2
GS
0
W-L
0-1
Mark Leiter Jr. ERA trend
Last 6
Earned runs per start
Avg 0.0 ER / start

Mark Leiter Jr. game log

2026 season
DateOpponentIPHERKBBERA
Jul 18Washington Nationals110210.00
Jul 12Chicago White Sox100100.00
Jul 9Detroit Tigers110200.00
Jul 3Miami Marlins100200.00
Jun 16Pittsburgh Pirates110000.00
Jun 13Colorado Rockies110100.00
Jun 8Milwaukee Brewers0.1111290.00
Jun 7Houston Astros100200.00
Jun 4Chicago Cubs100200.00
Jun 3Chicago Cubs0.200000.00
May 31New York Yankees100010.00
May 29New York Yankees110100.00
May 24San Diego Padres100010.00
May 21Los Angeles Angels110100.00
May 20Los Angeles Angels100100.00
May 16San Francisco Giants220200.00
May 14St. Louis Cardinals100200.00
May 12St. Louis Cardinals100100.00
May 9Baltimore Orioles1321018.00
May 5Philadelphia Phillies0.23411180.00
May 3Cleveland Guardians100100.00
Apr 29Kansas City Royals0.100110.00
Apr 28Kansas City Royals100100.00
Apr 25Texas Rangers100100.00
Apr 22Seattle Mariners121109.00
Apr 20Seattle Mariners120100.00
Apr 18Chicago White Sox0.200120.00
Apr 15Texas Rangers0.22311135.00
Apr 14Texas Rangers100200.00
Apr 11New York Mets100300.00
Apr 10New York Mets110100.00
Apr 7New York Yankees0.25400180.00
Apr 5Houston Astros110010.00
Mar 31Atlanta Braves120100.00
Mar 30Atlanta Braves110000.00
Mar 28Toronto Blue Jays0.2210045.00

Mark Leiter Jr. season splits

Home / away / vs L-R · 2026
Home ERA
ERA2.57
Away ERA
ERA6.89
vs Left AVG
AVG0.262
vs Right AVG
AVG0.280
Mark Leiter Jr. monthly splits
ERA · IP · K · BB · WHIP per month
MonthGSERAIPKBBWHIP
Mar03.382.2101.88
Apr06.9710.11351.74
May04.6311.21131.11
Jun01.805.0621.00
Jul00.004.0710.75
Pitch arsenal
Usage and average velocity · 2026
FSSplitter
32.8%84.3 mph
SISinker
26.1%92.1 mph
CUCurveball
19.2%73.9 mph
FFFour-seam FB
11.6%92.2 mph
FCCutter
9.3%89.6 mph
SLSlider
0.9%82.5 mph

Performance vs teams

2026 starts · sorted by ERA
TeamERAGS
Washington Nationals
0.00
1
Chicago White Sox
0.00
2
Detroit Tigers
0.00
1
Miami Marlins
0.00
1
Pittsburgh Pirates
0.00
1
Colorado Rockies
0.00
1
Houston Astros
0.00
2
Chicago Cubs
0.00
2
San Diego Padres
0.00
1
Los Angeles Angels
0.00
2
San Francisco Giants
0.00
1
St. Louis Cardinals
0.00
2
Cleveland Guardians
0.00
1
Kansas City Royals
0.00
2
New York Mets
0.00
2
Atlanta Braves
0.00
2
Seattle Mariners
4.50
2
Texas Rangers
12.27
3
New York Yankees
16.36
3
Baltimore Orioles
18.00
1
Toronto Blue Jays
45.00
1
Milwaukee Brewers
90.00
1
Philadelphia Phillies
180.00
1

Hot / Cold zones

Opponent results by strike zone area

AVG by zone

  • Zone 01: .455
  • Zone 02: .375
  • Zone 03: .667
  • Zone 04: .250
  • Zone 05: .333
  • Zone 06: .000
  • Zone 07: .200
  • Zone 08: .462
  • Zone 09: .200
  • Zone 11: .250
  • Zone 12: -
  • Zone 13: .067
  • Zone 14: .100

OPS by zone

  • Zone 01: 1.545
  • Zone 02: .750
  • Zone 03: 1.333
  • Zone 04: .500
  • Zone 05: .667
  • Zone 06: .000
  • Zone 07: .455
  • Zone 08: 1.154
  • Zone 09: .400
  • Zone 11: .714
  • Zone 12: -
  • Zone 13: .278
  • Zone 14: .360

SLG by zone

  • Zone 01: 1.091
  • Zone 02: .375
  • Zone 03: .667
  • Zone 04: .250
  • Zone 05: .333
  • Zone 06: .000
  • Zone 07: .300
  • Zone 08: .692
  • Zone 09: .200
  • Zone 11: .250
  • Zone 12: -
  • Zone 13: .067
  • Zone 14: .100

OBP by zone

  • Zone 01: .455
  • Zone 02: .375
  • Zone 03: .667
  • Zone 04: .250
  • Zone 05: .333
  • Zone 06: .000
  • Zone 07: .182
  • Zone 08: .462
  • Zone 09: .200
  • Zone 11: .571
  • Zone 12: -
  • Zone 13: .222
  • Zone 14: .280

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: 19.00
  • Zone 02: 22.00
  • Zone 03: 8.00
  • Zone 04: 25.00
  • Zone 05: 23.00
  • Zone 06: 21.00
  • Zone 07: 17.00
  • Zone 08: 18.00
  • Zone 09: 18.00
  • Zone 11: 7.00
  • Zone 12: 5.00
  • Zone 13: 36.00
  • Zone 14: 43.00

numberOfPitches by zone

  • Zone 01: 29.00
  • Zone 02: 30.00
  • Zone 03: 12.00
  • Zone 04: 39.00
  • Zone 05: 38.00
  • Zone 06: 25.00
  • Zone 07: 27.00
  • Zone 08: 29.00
  • Zone 09: 20.00
  • Zone 11: 66.00
  • Zone 12: 22.00
  • Zone 13: 87.00
  • Zone 14: 127.00
0.4000.3000.200
.067.250-.100.455.375.667.250.333.000.200.462.200
0.4000.3000.200

Last 10 matchups

vs Washington Nationals — 2026-07-18
0ER · 1ip
→
vs Chicago White Sox — 2026-07-12
0ER · 1ip
→
vs Detroit Tigers — 2026-07-09
0ER · 1ip
→
vs Miami Marlins — 2026-07-03
0ER · 1ip
→
vs Pittsburgh Pirates — 2026-06-16
0ER · 1ip
→
vs Colorado Rockies — 2026-06-13
0ER · 1ip
→
vs Milwaukee Brewers — 2026-06-08
1ER · 0.1ip
→
vs Houston Astros — 2026-06-07
0ER · 1ip
→
vs Chicago Cubs — 2026-06-04
0ER · 1ip
→
vs Chicago Cubs — 2026-06-03
0ER · 0.2ip
→

More MLB pitcher profiles

Similar starters by ERA and workload — refreshed on each visit.

Erick Fedde4.16 ERA · Chicago White SoxAndrew Alvarez4.22 ERA · Washington NationalsNathan Eovaldi4.21 ERA · Texas RangersRyan Weathers4.40 ERA · New York YankeesJP Sears4.38 ERA · San Diego PadresCraig Kimbrel4.35 ERA · Tampa Bay Rays