Mark Leiter Jr.

Position: Pitcher

Bats: Right • Throws: Right

6-0, 210lb (183cm, 95kg)

Team: Chicago Cubs (majors)

Born: March 13, 1991 in Fort Lauderdale, FL us

Draft: Drafted by the Philadelphia Phillies in the 22nd round of the 2013 MLB June Amateur Draft from New Jersey Institute of Technology (Newark, NJ).

High School: Toms River North HS (Toms River, NJ)

School: New Jersey Institute of Technology (Newark, NJ)

Rookie Status: Exceeded rookie limits during 2017 season

2024 Contract Status: Signed thru 2024, 1 yr/$1.5M (24)

Service Time (01/2024): 3.031 • Arb Eligible: 2025 • Free Agent: 2027

Full Name: Mark Edward Leiter

Nicknames: Junior

Pronunciation: \LIE-turr\

Twitter: @Leiter_Jr

View Player Info from the B-R Bullpen

Relatives: Nephew of Al Leiter; Son of Mark Leiter

Become a Stathead & surf this site ad-free.

SUMMARY

2024

Career

WAR

0.6

1.1

ERA

0.00

4.35

163

12.1

258.1

269

WHIP

1.054

1.277

Player News

Hide Majors

Hide Minors

Hide College

2024 Spring Training

Register Pitching

Register Pitching
Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
2011	20		New Jersey Tech	GWC	NCAA					4.68	5.36		13			0		92.1	90	55	48		53		103					1.549	8.8		5.2	10.0	1.94
2012	21	0.4	New Jersey Tech	GWC	NCAA		5	7	.417	3.65	4.71	14	14			1	0	93.2	95	49	38	3	43	1	95	7	1	11	422	1.473	9.1	0.3	4.1	9.1	2.21
2013	22	1.2	New Jersey Tech	GWC	NCAA		5	9	.357	4.94	5.42	15	15			1	0	94.2	92	57	52	4	42	1	106	11	0	12	424	1.415	8.7	0.4	4.0	10.1	2.52
2013	22		3 Teams	3 Lgs	Rk-A-A+	PHI	4	0	1.000	1.20	1.40	16	4	3	0	0	0	45.0	34	7	6	1	13	0	50	1	0	3	180	1.044	6.8	0.2	2.6	10.0	3.85
2013	22	-1.2	Clearwater	FLOR	A+	PHI	1	0	1.000	3.00	4.50	2	1	1	0	0	0	6.0	6	3	2	1	1	0	4	0	0	0	25	1.167	9.0	1.5	1.5	6.0	4.00
2013	22	0.3	Lakewood	SALL	A	PHI	2	0	1.000	0.00	0.00	3	3	0	0	0	0	16.0	11	0	0	0	5	0	20	0	0	0	63	1.000	6.2	0.0	2.8	11.3	4.00
2013	22	1.5	Phillies	GULF	Rk	PHI	1	0	1.000	1.57	1.57	11	0	2	0	0	0	23.0	17	4	4	0	7	0	26	1	0	3	92	1.043	6.7	0.0	2.7	10.2	3.71
2014	23		2 Teams	2 Lgs	A-A+	PHI	9	12	.429	4.35	4.95	27	27	0	1	1	0	149.0	160	82	72	10	37	0	141	9	0	7	641	1.322	9.7	0.6	2.2	8.5	3.81
2014	23	-0.2	Clearwater	FLOR	A+	PHI	4	5	.444	4.31	4.73	11	11	0	1	1	0	64.2	69	34	31	5	15	0	56	4	0	3	275	1.299	9.6	0.7	2.1	7.8	3.73
2014	23	1.3	Lakewood	SALL	A	PHI	5	7	.417	4.38	5.12	16	16	0	0	0	0	84.1	91	48	41	5	22	0	85	5	0	4	366	1.340	9.7	0.5	2.3	9.1	3.86
2015	24		2 Teams	2 Lgs	A+-AA	PHI	8	7	.533	3.09	3.41	27	21	2	2	0	1	142.2	135	54	49	7	34	1	121	9	0	5	590	1.185	8.5	0.4	2.1	7.6	3.56
2015	24	-0.6	Reading	EL	AA	PHI	2	6	.250	4.79	4.98	8	8	0	1	0	0	47.0	56	26	25	3	11	1	38	3	0	0	204	1.426	10.7	0.6	2.1	7.3	3.45
2015	24	1.0	Clearwater	FLOR	A+	PHI	6	1	.857	2.26	2.63	19	13	2	1	0	1	95.2	79	28	24	4	23	0	83	6	0	5	386	1.066	7.4	0.4	2.2	7.8	3.61
2016	25	0.5	Reading	EL	AA	PHI	6	3	.667	3.39	3.91	23	17	4	0	0	1	103.2	91	45	39	9	30	0	94	6	0	7	424	1.167	7.9	0.8	2.6	8.2	3.13
2017	26	-0.4	Lehigh Valley	IL	AAA	PHI	2	1	.667	4.20	4.50	7	5	0	0	0	0	30.0	27	15	14	5	6	0	38	1	0	2	124	1.100	8.1	1.5	1.8	11.4	6.33
2017	26	-2.4	PHI	NL	Maj	PHI	3	6	.333	4.96	5.86	27	11	5	0	0	0	90.2	90	59	50	18	31	2	84	7	0	3	395	1.335	8.9	1.8	3.1	8.3	2.71
2018	27		2 Teams	2 Lgs	AAA-A+	PHI	3	1	.750	3.24	4.05	23	0	5	0	0	0	33.1	29	15	12	3	14	1	39	2	0	3	144	1.290	7.8	0.8	3.8	10.5	2.79
2018	27		2 Teams	2 Lgs	Maj	PHI	0	1	.000	7.71	10.80	20	0	4	0	0	0	23.1	35	28	20	7	12	3	22	2	0	2	123	2.014	13.5	2.7	4.6	8.5	1.83
2018	27	0.8	Lehigh Valley	IL	AAA	PHI	3	1	.750	3.81	4.76	20	0	4	0	0	0	28.1	28	15	12	3	13	1	30	2	0	3	127	1.447	8.9	1.0	4.1	9.5	2.31
2018	27	4.0	Clearwater	FLOR	A+	PHI	0	0		0.00	0.00	3	0	1	0	0	0	5.0	1	0	0	0	1	0	9	0	0	0	17	0.400	1.8	0.0	1.8	16.2	9.00
2018	27	-1.2	PHI	NL	Maj	PHI	0	1	.000	5.40	9.18	12	0	2	0	0	0	16.2	22	17	10	5	8	2	13	1	0	0	84	1.800	11.9	2.7	4.3	7.0	1.63
2018	27	-1.6	TOR	AL	Maj	TOR	0	0		13.50	14.85	8	0	2	0	0	0	6.2	13	11	10	2	4	1	9	1	0	2	39	2.550	17.6	2.7	5.4	12.2	2.25

2021	30		2 Teams	2 Lgs	AAA-AA	DET	10	8	.556	3.77	4.16	25	19	2	0	0	0	114.2	92	53	48	14	31	0	145	10	0	7	472	1.073	7.2	1.1	2.4	11.4	4.68
2021	30	3.0	Toledo	AAAE	AAA	DET	8	4	.667	3.34	3.84	17	15	0	0	0	0	89.0	67	38	33	10	23	0	110	8	0	5	361	1.011	6.8	1.0	2.3	11.1	4.78
2021	30	5.3	Erie	AANE	AA	DET	2	4	.333	5.26	5.26	8	4	2	0	0	0	25.2	25	15	15	4	8	0	35	2	0	2	111	1.286	8.8	1.4	2.8	12.3	4.38
2022	31	4.0	Iowa	IL	AAA	CHC	0	3	.000	5.32	5.32	6	6	0	0	0	0	22.0	21	13	13	4	6	0	32	1	0	1	94	1.227	8.6	1.6	2.5	13.1	5.33
2022	31	1.8	CHC	NL	Maj	CHC	2	7	.222	3.99	4.26	35	4	11	0	0	3	67.2	52	32	30	10	25	2	73	7	0	5	282	1.138	6.9	1.3	3.3	9.7	2.92
2023	32	2.8	CHC	NL	Maj	CHC	1	3	.250	3.50	3.78	69	0	12	0	0	4	64.1	48	27	25	7	24	0	77	8	1	2	269	1.119	6.7	1.0	3.4	10.8	3.21
2024	33	3.6	CHC	NL	Maj	CHC	0	0		0.00	1.46	12	0	1	0	0	0	12.1	8	2	0	0	5	0	13	0	0	0	51	1.054	5.8	0.0	3.6	9.5	2.60
Year	Age	AgeDif	Tm	Lg	Lev	Aff	W	L	W-L%	ERA	RA9	G	GS	GF	CG	SHO	SV	IP	H	R	ER	HR	BB	IBB	SO	HBP	BK	WP	BF	WHIP	H9	HR9	BB9	SO9	SO/W
Majors (5 seasons)					Majors		6	17	.261	4.35	5.16	163	15	33	0	0	7	258.1	233	148	125	42	97	7	269	24	1	12	1120	1.277	8.1	1.5	3.4	9.4	2.77
Minors (8 seasons)					Minors		42	35	.545	3.56	3.99	154	99	16	3	1	2	640.1	589	284	253	53	171	2	660	39	0	35	2669	1.187	8.3	0.7	2.4	9.3	3.86
College (3 seasons)					College		10	16		4.43	5.16	29	42			2	0	280.2	277	161	138	7	138	2	304	18	1	23	846	1.479	8.9		4.4	9.7	2.20
All Levels (12 Seasons)							58	68		3.94	4.53	346	156	49	3	3	9	1179.1	1099	593	516	102	406	11	1233	81	2	70	4635	1.276	8.4		3.1	9.4	3.04

AAA (4 seasons)					Minors		13	9	.591	3.83	4.31	50	26	4	0	0	0	169.1	143	81	72	22	48	1	210	12	0	11	706	1.128	7.6	1.2	2.6	11.2	4.38
AA (3 seasons)					Minors		10	13	.435	4.03	4.39	39	29	6	1	0	1	176.1	172	86	79	16	49	1	167	11	0	9	739	1.253	8.8	0.8	2.5	8.5	3.41
A+ (4 seasons)					Minors		11	6	.647	2.99	3.41	35	25	4	2	1	1	171.1	155	65	57	10	40	0	152	10	0	8	703	1.138	8.1	0.5	2.1	8.0	3.80
A (2 seasons)					Minors		7	7	.500	3.68	4.31	19	19	0	0	0	0	100.1	102	48	41	5	27	0	105	5	0	4	429	1.286	9.1	0.4	2.4	9.4	3.89
Rk (1 season)					Minors		1	0	1.000	1.57	1.57	11	0	2	0	0	0	23.0	17	4	4	0	7	0	26	1	0	3	92	1.043	6.7	0.0	2.7	10.2	3.71