Mark Leiter Jr.
Athletics · No. 38 · P

Mark Leiter Jr.

6' 0", 210 lbs·Age 35·Bats R / Throws R
↑ HotL3 games
Pitcher archetype· RP· DERIVED
Changeup / OffspeedTurns lineups over with a changeup or splitter as the signature pitch.2017–2026 · 6,486 pitches · 91.0 mph fastball
2026 · 36 G
4.28
ERA
0-1
W-L
33.7
IP
1.28
WHIP
38
SO
11
BB
10.2
K/9
4
SV
The Almanac's Take

AI-generated analysis coming soon.

Career Highs
3.50
Best ERA · 2023
4
Most W · 2024
86
Most K · 2024
1.12
Best WHIP · 2023
Career Arc · ERA
11 seasons
Statistical Comps
Last 10 Games
DateIPHERBBSOHRDec
Jul 18110120
Jul 12100010
Jul 9110020
Jul 3100020
Jun 16110000
Jun 13110010H
Jun 80.33311210H
Jun 7100020
Jun 4100020H
Jun 30.66700000

Career · Hitting

3 seasons
YearTeamGABHRRBIAVGOPSOPS+
2017272500
201812300
202369000
Career1082800

Career · Pitching

11 seasons
YearTeamGIPWLERAERA+SOWHIP
20172790.2364.96841.33
20181216.2015.40131.80
201886.20013.5092.55
20182023.1017.71222.01
20223567.2273.99731.14
20236964.1133.50771.12
20243936.1244.21531.10
20242121.2214.98331.71
20246058.0454.50861.33
20255948.1674.84541.53
20263633.2014.28381.31
Career386463.62036542
Pitch Movement Map

Each pitch type this pitcher throws regularly, placed by how the ball moves — sideways break across, rise or drop down the side. Each dotted ring holds about the middle 85% of the league’s pitches of that type, so a cluster sitting outside its ring is movement most pitchers don’t have.

RHP · 6,480 pitches · 2017–2026
-24-12+12+24-24-12+12+24← GLOVE SIDEARM SIDE →HORIZONTAL BREAK (IN)INDUCED VERTICAL BREAK (IN)FSSIFFCUFCSLST
FS · Split-Finger30.1% · 84.5 mph
SI · Sinker26.8% · 91.7 mph
FF · 4-Seam Fastball16.7% · 91.2 mph
CU · Curveball14.5% · 73.4 mph
FC · Cutter8.1% · 88.5 mph
SL · Slider2.2% · 81.6 mph
ST · Sweeper1.4% · 79.6 mph

The dots — a sample of this pitcher’s regular-season pitches, placed by movement: left–right is horizontal break, up–down is induced vertical break (what the pitch does beyond gravity). The view is handedness-neutral — positive break is toward the pitcher’s arm side for lefties and righties alike, so every sinker runs right and every sweeper breaks left, whoever throws it.

The dotted rings — about the middle 85% of where each pitch type lands league-wide (a 2-standard-deviation spread), measured from 7.5 million regular-season pitches since 2015. A cluster sitting well outside its ring is movement most of the league doesn’t get. Spring training and the postseason are excluded.

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