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Mark Leiter Jr.
Mark Leiter Jr.
Athletics • Pitcher
Age 35 • 6' 0" • 210 lb
Bats: R • Throws: R
MLB Debut: 2017-04-28
Born: Fort Lauderdale , FL • USA
Draft: 2013
2026 Stats
W
0
L
1
ERA
5.96
WHIP
1.50
IP
22.2
SO
24
SV
4
HLD
2
G
24
GS
0
Career Stats
W
16
L
30
ERA
4.68
WHIP
1.34
IP
375.0
SO
420
SV
13
HLD
64
G
294
GS
15
Year-by-Year Pitching
Year Team GGSIP WLSVSO ERAWHIPAwards
2017 PHI 27 11 90.2 3 6 — 84 4.96 1.33
2018 Total 20 — 23.1 — 1 — 22 7.71 2.01
2022 CHC 35 4 67.2 2 7 3 73 3.99 1.14
2023 CHC 69 — 64.1 1 3 4 77 3.50 1.12
2024 Total 60 — 58.0 4 5 — 86 4.50 1.33
2025 NYY 59 — 48.1 6 7 2 54 4.84 1.53
2026 ATH 24 — 22.2 — 1 4 24 5.96 1.50
Spring Training
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2017 PHI 1—1.0 ———1 0.001.00
2018 PHI 5—12.1 ———17 4.381.30
2019 TOR 3—3.0 ———5 9.001.67
2022 CHC 419.2 1——10 0.931.24
2023 CHC 7—7.0 ——110 1.291.00
2024 CHC 717.0 ———10 2.570.86
2025 NYY 4—3.2 ———7 0.000.82
2026 ATH 7—7.0 ———8 2.571.57
Postseason
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2024 NYY 6—5.1 1——5 1.691.50
Game Logs
Season selector loads one year at a time.
Pitching
Date Opponent IP H R ER BB SO HR
2026-05-24 @ SD 1.0 0 0 0 1 0 0
2026-05-21 @ LAA 1.0 1 0 0 0 1 0
2026-05-20 @ LAA 1.0 0 0 0 0 1 0
2026-05-16 vs SF 2.0 2 0 0 0 2 0
2026-05-14 vs STL 1.0 0 0 0 0 2 0
2026-05-12 vs STL 1.0 0 0 0 0 1 0
2026-05-09 @ BAL 1.0 3 2 2 0 1 0
2026-05-05 @ PHI 0.2 3 4 4 1 1 0
2026-05-03 vs CLE 1.0 0 0 0 0 1 0
2026-04-29 vs KC 0.1 0 0 0 1 1 0
2026-04-28 vs KC 1.0 0 0 0 0 1 0
2026-04-25 @ TEX 1.0 0 0 0 0 1 0
2026-04-22 @ SEA 1.0 2 1 1 0 1 0
2026-04-20 @ SEA 1.0 2 0 0 0 1 0
2026-04-18 vs CWS 0.2 0 0 0 2 1 0
2026-04-15 vs TEX 0.2 2 3 3 1 1 1
2026-04-14 vs TEX 1.0 0 0 0 0 2 0
2026-04-11 @ NYM 1.0 0 0 0 0 3 0
2026-04-10 @ NYM 1.0 1 0 0 0 1 0
2026-04-07 @ NYY 0.2 5 4 4 0 0 1
2026-04-05 vs HOU 1.0 1 0 0 1 0 0
2026-03-31 @ ATL 1.0 2 0 0 0 1 0
2026-03-30 @ ATL 1.0 1 0 0 0 0 0
2026-03-28 @ TOR 0.2 2 1 1 0 0 0
Transactions
Entire history • newest first.
2026-04-16
RHP Mark Leiter Jr. changed number to 38.
2026-04-15
RHP Mark Leiter Jr. changed number to 42.
2025-12-17
Athletics signed free agent RHP Mark Leiter Jr..
2025-11-21
RHP Mark Leiter Jr. elected free agency.
2025-10-09
New York Yankees activated RHP Mark Leiter Jr..
2025-10-04
RHP Mark Leiter Jr. roster status changed by New York Yankees.
2025-08-05
New York Yankees activated RHP Mark Leiter Jr. from the 15-day injured list.
2025-08-02
New York Yankees sent RHP Mark Leiter Jr. on a rehab assignment to Somerset Patriots.
2025-07-08
New York Yankees placed RHP Mark Leiter Jr. on the 15-day injured list retroactive to July 7, 2025. Left fibular head stress fracture.
2025-04-16
RHP Mark Leiter Jr. changed number to 56.
2025-04-15
RHP Mark Leiter Jr. changed number to 42.
2024-12-20
RHP Mark Leiter Jr. changed number to 56.
2024-10-18
New York Yankees activated RHP Mark Leiter Jr..
2024-10-05
RHP Mark Leiter Jr. roster status changed by New York Yankees.
2024-09-29
New York Yankees activated RHP Mark Leiter Jr. from the paternity list.
2024-09-26
New York Yankees placed RHP Mark Leiter Jr. on the paternity list.
2024-07-30
Chicago Cubs traded RHP Mark Leiter Jr. to New York Yankees for SS Benjamin Cowles and RHP Jack Neely.
2024-07-09
Chicago Cubs activated RHP Mark Leiter Jr. from the 15-day injured list.
2024-06-23
Chicago Cubs placed RHP Mark Leiter Jr. on the 15-day injured list. Right forearm strain.
2023-03-30
Chicago Cubs selected the contract of RHP Mark Leiter Jr., and from Iowa Cubs.
2023-01-30
Chicago Cubs signed free agent RHP Mark Leiter Jr. to a minor league contract.
2023-01-30
RHP Mark Leiter Jr. roster status changed by Chicago Cubs.
2023-01-30
RHP Mark Leiter Jr. roster status changed by Chicago Cubs.
2023-01-19
Chicago Cubs sent RHP Mark Leiter Jr. outright to Iowa Cubs.
2023-01-13
Chicago Cubs designated RHP Mark Leiter Jr. for assignment.
2022-07-30
Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs.
2022-07-16
Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs.
2022-06-21
Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs.
2022-06-04
Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs.
2022-05-29
Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs.
2022-05-18
Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs.
2022-05-11
Chicago Cubs recalled RHP Mark Leiter Jr. from Iowa Cubs.
2022-04-30
Chicago Cubs optioned RHP Mark Leiter Jr. to Iowa Cubs.
2022-04-16
Chicago Cubs selected the contract of RHP Mark Leiter Jr. from Iowa Cubs.
2022-03-17
RHP Mark Leiter Jr. and assigned to Chicago Cubs.
2021-12-15
Chicago Cubs signed free agent RHP Mark Leiter Jr. to a minor league contract.
2021-03-18
Detroit Tigers signed free agent P Mark Leiter Jr..
2020-02-07
Arizona Diamondbacks signed free agent RHP Mark Leiter Jr. to a minor league contract.
2019-01-28
Toronto Blue Jays invited non-roster RHP Mark Leiter Jr. to spring training.
2018-11-30
Toronto Blue Jays sent RHP Mark Leiter Jr. outright to Buffalo Bisons.
2018-11-26
Toronto Blue Jays designated RHP Mark Leiter Jr. for assignment.
2018-09-03
Toronto Blue Jays activated RHP Mark Leiter Jr..
2018-09-01
Toronto Blue Jays claimed RHP Mark Leiter Jr. off waivers from Philadelphia Phillies.
2018-08-28
Philadelphia Phillies designated RHP Mark Leiter Jr. for assignment.
2018-08-17
Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs.
2018-08-16
Philadelphia Phillies recalled Mark Leiter Jr. from Lehigh Valley IronPigs.
2018-07-23
Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs.
2018-06-30
Philadelphia Phillies recalled Mark Leiter Jr. from Lehigh Valley IronPigs.
2018-06-17
Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs.
2018-05-31
Philadelphia Phillies recalled Mark Leiter Jr. from Lehigh Valley IronPigs.
2018-05-16
Philadelphia Phillies optioned RHP Mark Leiter Jr. to Lehigh Valley IronPigs.
2018-05-06
Philadelphia Phillies sent RHP Mark Leiter Jr. on a rehab assignment to Clearwater Threshers.
2018-03-29
Philadelphia Phillies placed RHP Mark Leiter Jr. on the 10-day disabled list retroactive to March 26, 2018. Right forearm strain.
2018-02-15
Mark Leiter Jr. changed number to 31.
2017-07-30
Philadelphia Phillies recalled RHP Mark Leiter from Lehigh Valley IronPigs.
2017-07-18
Philadelphia Phillies optioned RHP Mark Leiter to Lehigh Valley IronPigs.
2017-06-23
Philadelphia Phillies recalled Mark Leiter from Lehigh Valley IronPigs.
2017-06-03
Philadelphia Phillies optioned RHP Mark Leiter to Lehigh Valley IronPigs.
2017-04-18
Philadelphia Phillies selected the contract of Mark Leiter from Lehigh Valley IronPigs.
2017-02-23
RHP Mark Leiter assigned to Philadelphia Phillies.
2015-03-17
RHP Mark Leiter assigned to Philadelphia Phillies.
2014-03-15
RHP Mark Leiter assigned to Philadelphia Phillies.
2013-06-12
Philadelphia Phillies signed RHP Mark Leiter.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2026
Ready
Basic Line
Season / Game
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Pitch Arsenal
Usage • Velo • Break • Spin • xwOBA
Pitch N Use% Velo HB IVB Spin xwOBA Whiff% Zone% Chase% BNStuff+ BNCtrl+
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Notes
Primary pitch summary
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Movement Profile (Induced Break)
Pitcher's View: HB vs Rise / Drop (in)
Circles: 12/18/24 in • Dots = pitch types (size ~ pitch count)
Pitch Location Heatmaps
KDE-style blur • fixed zone • catcher POV
vs. LHH
vs. RHH
Zone: left -0.7083 / right 0.7083 • bot 1.595 / top 3.394 • Domain: X [-2,2], Z [0,5]
Statcast Game Log
Per-game pitch metrics from Statcast
Date Pitches Velo BNStuff+ BNCtrl+ Whiff% Zone% Chase% K% BB% xwOBA
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