Mark Leiter Jr. stats

Last played for the Athletics, 2026

Relief Pitcher · #38

Age 35 · 6' 0"

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Mark Leiter Jr. played 7 MLB seasons, 2017 to 2026.

Stats

Choose how these numbers are shown

Standard

Career regular season

GP
306
W
16
L
30
ERA
4.57
IP
386.0
K
434
BB
142
WHIP
1.33
Standard by season
GP: Games the player appeared in, however briefly.W: Games in which this pitcher was credited with the win.L: Games in which this pitcher was charged with the loss.ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.K: Batters this pitcher struck out.BB: Times the batter reached first base on four balls.WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite.
2017PHI27364.9690.284311.33
2018PHI/TOR20017.7123.122122.01
2022CHC35273.9967.273251.14
2023CHC69133.5064.177241.12
2024CHC/NYY60454.5058.086221.33
2025NYY59674.8448.154171.53
2026ATH36014.2833.238111.31

What the columns mean: W · L · ERA · IP · K · BB · WHIP

Career Postseason

GP
6
W
1
L
0
ERA
1.69
IP
5.1
K
5
BB
5
WHIP
1.50

Expanded

Career regular season

QS
4
CG
0
SHO
0
K/9
10.1
GB
510
FB
566
G/F
0.90
WP
27
Expanded by season
QS: Quality starts: six innings or more with no more than three earned runs.CG: Complete games, pitched from the first out to the last.SHO: Shutouts — complete games with no run allowed.K/9: Strikeouts for every nine innings pitched.GB: Ground balls hit against this pitcher.FB: Fly balls hit against this pitcher.G/F: Ground balls for every fly ball hit against this pitcher.WP: Wild pitches — throws the catcher had no chance to stop.
2017PHI4008.313513813
2018PHI/TOR0008.540460.92
2022CHC0009.7879015
2023CHC00010.874860.92
2024CHC/NYY00013.367780.95
2025NYY00010.168760.98
2026ATH00010.239520.82

What the columns mean: QS · CG · SHO · K/9 · G/F · WP

Bio

Age
35 yearsMar 13, 1991
Height
6' 0"
Debut
2017
Birthplace
Fort Lauderdale, FL
Draft
2013Rd 22, Pk 661
College
NJIT

Latest performance

Mark Leiter Jr.

Jul 18 · vs WSH · W 15-1

IP
1.0
H
1
R
0
ER
0
BB
1
K
2
HR
0
ERA
4.28

Games

All games
Most recent games
DateOpponentIPHRERK
Sat, Jul 18vsWSHW 15-111002
Sun, Jul 12atCHWL 9-110001
Thu, Jul 09atDETL 4-111002
Fri, Jul 03vsMIAL 12-510002
Tue, Jun 16vsPITL 6-511000
Sat, Jun 13vsCOLW 7-511001

What were Mark Leiter Jr.'s career stats?

Mark Leiter Jr. played 7 seasons for the Phillies, the Cubs, the Yankees and the Athletics. He had 16 wins and 434 strikeouts with a 4.57 ERA over 386.0 innings. His best season was 2025: 6 wins, a 4.84 ERA and 54 strikeouts.

More on Mark Leiter Jr.

Playoff series

Mark Leiter Jr. played 6 games across 1 MLB postseason in 2 series — 1 won, 1 lost.

Mark Leiter Jr.'s line in each playoff series
IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs.H: Times the batter reached base by hitting the ball, without help from an error.ER: Earned runs allowed — runs that scored without help from an error.K: Batters this pitcher struck out.
2024CLEWon 2-022.1212
2024LADLost 1-343.0103

What the columns mean: IP · H · ER · K

Mark Leiter Jr.’s playoff series, round by round

Totals, from MLB game logs since the 2001 postseason — earlier series are not counted.