Mark Leiter Jr. 2026 season stats

Mark Leiter Jr. played 36 games for the Athletics in the 2026 MLB regular season, with 0 wins, a 4.28 ERA and 38 strikeouts.

All Mark Leiter Jr. seasonsAthletics

2026 regular season

GP
36
R
16
H
33
K
38
L
1
W
0
BB
11
ER
16
GS
0
IP
33.2
SV
4
W%
0.0

2026 splits

Totals, from the 36 regular-season games in the log.

Mark Leiter Jr., 2026 splits
GP: Games the player appeared in, however briefly.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.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.
All games3633.2331616113824.28
Home1716.0104491912.25
Away1917.223121221916.11
Wins1816.1145572012.76
Losses1817.119111141815.71
March32.25110103.38
April1210.1138851326.97
May1111.2106631104.63
June65.03112601.80
July44.02001700.00

What the columns mean: IP · H · R · BB · K · HR · ERA

By opponent

Mark Leiter Jr., 2026, by opponent
GP: Games the player appeared in, however briefly.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.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent.
vs ATL22.03000100.00
vs BAL11.032201018.00
vs CHC21.20000200.00
vs CHW21.20002200.00
vs CLE11.00000100.00
vs COL11.01000100.00
vs DET11.01000200.00
vs HOU22.01001200.00
vs KC21.10001200.00
vs LAA22.01000200.00
vs MIA11.00000200.00
vs MIL10.111121027.00
vs NYM22.01000400.00
vs NYY32.264411113.50
vs PHI10.234411054.00
vs PIT11.01000000.00
vs SD11.00001000.00
vs SEA22.04110204.50
vs SF12.02000200.00
vs STL22.00000300.00
vs TEX32.223314110.13
vs TOR10.221100013.50
vs WSH11.01001200.00

What the columns mean: IP · H · R · BB · K · HR · ERA

2026 games

Mark Leiter Jr., last 15 games, 2026 regular season
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.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.
Jul 18, 2026vs WSHW 15-11.0100120
Jul 12, 2026@ CHWL 9-11.0000010
Jul 9, 2026@ DETL 4-11.0100020
Jul 3, 2026vs MIAL 12-51.0000020
Jun 16, 2026vs PITL 6-51.0100000
Jun 13, 2026vs COLW 7-51.0100010
Jun 8, 2026vs MILL 15-14 F/120.1111210
Jun 7, 2026@ HOUW 5-01.0000020
Jun 4, 2026@ CHCL 7-61.0000020
Jun 3, 2026@ CHCW 5-4 F/100.2000000
May 31, 2026vs NYYL 13-81.0000100
May 29, 2026vs NYYL 8-21.0100010
May 24, 2026@ SDW 5-21.0000100
May 21, 2026@ LAAW 3-2 F/101.0100010
May 20, 2026@ LAAW 6-5 F/101.0000010

What the columns mean: IP · H · R · BB · K · HR

All 36 gamesOnly the last 15 games
Mark Leiter Jr., game by game, 2026 regular season
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.R: Runs — scored by the batter, or allowed by the pitcher.ER: Earned runs allowed — runs that scored without help from an error.BB: Times the batter reached first base on four balls.K: Batters this pitcher struck out.HR: Home runs hit.
Jul 18, 2026vs WSHW 15-11.0100120
Jul 12, 2026@ CHWL 9-11.0000010
Jul 9, 2026@ DETL 4-11.0100020
Jul 3, 2026vs MIAL 12-51.0000020
Jun 16, 2026vs PITL 6-51.0100000
Jun 13, 2026vs COLW 7-51.0100010
Jun 8, 2026vs MILL 15-14 F/120.1111210
Jun 7, 2026@ HOUW 5-01.0000020
Jun 4, 2026@ CHCL 7-61.0000020
Jun 3, 2026@ CHCW 5-4 F/100.2000000
May 31, 2026vs NYYL 13-81.0000100
May 29, 2026vs NYYL 8-21.0100010
May 24, 2026@ SDW 5-21.0000100
May 21, 2026@ LAAW 3-2 F/101.0100010
May 20, 2026@ LAAW 6-5 F/101.0000010
May 16, 2026vs SFL 6-42.0200020
May 14, 2026vs STLL 5-41.0000020
May 12, 2026vs STLL 6-41.0000010
May 9, 2026@ BALW 6-21.0322010
May 5, 2026@ PHIL 9-10.2344110
May 3, 2026vs CLEW 7-11.0000010
Apr 29, 2026vs KCW 5-20.1000110
Apr 28, 2026vs KCL 4-1 F/101.0000010
Apr 25, 2026@ TEXL 4-31.0000010
Apr 22, 2026@ SEAL 5-41.0211010
Apr 20, 2026@ SEAW 6-41.0200010
Apr 18, 2026vs CHWW 7-6 F/110.2000210
Apr 15, 2026vs TEXW 6-50.2233111
Apr 14, 2026vs TEXW 2-11.0000020
Apr 11, 2026@ NYMW 11-61.0000030
Apr 10, 2026@ NYMW 4-01.0100010
Apr 7, 2026@ NYYL 5-30.2544001
Apr 5, 2026vs HOUW 12-10 F/101.0100100
Mar 31, 2026@ ATLW 5-21.0200010
Mar 30, 2026@ ATLL 4-01.0100000
Mar 28, 2026@ TORL 8-7 F/110.2211000

What the columns mean: IP · H · R · BB · K · HR

Answered about Mark Leiter Jr. in 2026

Source: ESPN public MLB data, 2026 season.