Jack Flaherty

Position: Starting Pitcher

Bats: Right • Throws: Right

6-4, 225lb (193cm, 102kg)

Born: October 15, 1995 in Burbank, CA us

Draft: Drafted by the St. Louis Cardinals in the 1st round (34th) of the 2014 MLB June Amateur Draft from Harvard-Westlake HS (Los Angeles, CA).

High School: Harvard-Westlake HS (Los Angeles, CA)

Rookie Status: Exceeded rookie limits during 2018 season

2024 Contract Status: Signed thru 2024, 1 yr/$14M (24)

Service Time (01/2024): 6.006 • Free Agent: 2025

Agents: CAA Sports

National Team: us USA (18U)

Full Name: Jack Rafe Flaherty

Nicknames: Flare

Twitter: @Jack9Flaherty

Instagram: @jflare

View Player Info from the B-R Bullpen

Become a Stathead & surf this site ad-free.

SUMMARY

2024

Career

WAR

-0.2

10.0

ERA

4.91

3.78

134

128

18.1

686.0

768

WHIP

1.200

1.210

Prospect Rankings

Player News

Hide Majors

Hide Minors

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
2014	18	-2.4	Cardinals	GULF	Rk	STL	1	1	.500	1.59	3.57	8	6	0	0	0	0	22.2	18	9	4	1	4	1	28	3	0	2	94	0.971	7.1	0.4	1.6	11.1	7.00
2015	19	-2.9	Peoria	MIDW	A	STL	9	3	.750	2.84	3.60	18	18	0	0	0	0	95.0	92	38	30	2	31	0	97	7	1	10	409	1.295	8.7	0.2	2.9	9.2	3.13
2016	20	-3.1	Palm Beach	FLOR	A+	STL	5	9	.357	3.56	4.23	24	23	0	0	0	0	134.0	129	63	53	8	45	0	126	2	0	11	564	1.299	8.7	0.5	3.0	8.5	2.80
2017	21		2 Teams	2 Lgs	AAA-AA	STL	14	4	.778	2.18	2.18	25	25	0	0	0	0	148.2	120	36	36	12	35	2	147	0	0	5	581	1.043	7.3	0.7	2.1	8.9	4.20
2017	21	-5.6	Memphis	PCL	AAA	STL	7	2	.778	2.74	2.74	15	15	0	0	0	0	85.1	73	26	26	10	24	2	85	0	0	4	339	1.137	7.7	1.1	2.5	9.0	3.54
2017	21	-3.1	Springfield	TL	AA	STL	7	2	.778	1.42	1.42	10	10	0	0	0	0	63.1	47	10	10	2	11	0	62	0	0	1	242	0.916	6.7	0.3	1.6	8.8	5.64
2017	21	-7.4	STL	NL	Maj	STL	0	2	.000	6.33	6.33	6	5	0	0	0	0	21.1	23	15	15	4	10	1	20	1	0	0	94	1.547	9.7	1.7	4.2	8.4	2.00
2018	22	-4.6	Memphis	PCL	AAA	STL	4	1	.800	2.27	2.84	5	5	0	1	0	0	31.2	22	10	8	2	7	0	41	3	1	0	126	0.916	6.3	0.6	2.0	11.7	5.86
2018	22	-6.2	STL	NL	Maj	STL	8	9	.471	3.34	3.52	28	28	0	0	0	0	151.0	108	59	56	20	59	3	182	11	0	6	615	1.106	6.4	1.2	3.5	10.8	3.08
2019	23	-5.3	STL	NL	Maj	STL	11	8	.579	2.75	2.84	33	33	0	0	0	0	196.1	135	62	60	25	55	2	231	7	0	6	772	0.968	6.2	1.1	2.5	10.6	4.20
2020	24	-4.4	STL	NL	Maj	STL	4	3	.571	4.91	4.91	9	9	0	0	0	0	40.1	33	22	22	6	16	0	49	3	0	1	170	1.215	7.4	1.3	3.6	10.9	3.06
2021	25		2 Teams	2 Lgs	AAA-AA	STL	0	0		5.00	5.00	3	3	0	0	0	0	9.0	8	5	5	1	1	0	11	0	0	2	37	1.000	8.0	1.0	1.0	11.0	11.00
2021	25	-2.0	Memphis	AAAE	AAA	STL	0	0		3.60	3.60	2	2	0	0	0	0	5.0	5	2	2	0	1	0	8	0	0	1	21	1.200	9.0	0.0	1.8	14.4	8.00
2021	25	0.3	Springfield	AACN	AA	STL	0	0		6.75	6.75	1	1	0	0	0	0	4.0	3	3	3	1	0	0	3	0	0	1	16	0.750	6.8	2.3	0.0	6.8
2021	25	-3.9	STL	NL	Maj	STL	9	2	.818	3.22	4.02	17	15	0	0	0	0	78.1	57	35	28	12	26	1	85	6	0	4	322	1.060	6.5	1.4	3.0	9.8	3.27
2022	26		2 Teams	2 Lgs	AA-AAA	STL	1	2	.333	3.00	3.33	7	7	0	0	0	0	27.0	22	10	9	2	7	0	34	0	0	2	108	1.074	7.3	0.7	2.3	11.3	4.86
2022	26	-1.0	Memphis	IL	AAA	STL	1	2	.333	4.35	5.23	3	3	0	0	0	0	10.1	9	6	5	2	3	0	11	0	0	2	43	1.161	7.8	1.7	2.6	9.6	3.67
2022	26	1.5	Springfield	TL	AA	STL	0	0		2.16	2.16	4	4	0	0	0	0	16.2	13	4	4	0	4	0	23	0	0	0	65	1.020	7.0	0.0	2.2	12.4	5.75
2022	26	-3.2	STL	NL	Maj	STL	2	1	.667	4.25	4.50	9	8	0	0	0	0	36.0	36	18	17	4	22	0	33	5	0	0	167	1.611	9.0	1.0	5.5	8.3	1.50
2023	27		2 Teams	2 Lgs	Maj	STL	8	9	.471	4.99	5.18	29	27	0	0	0	0	144.1	162	83	80	17	66	2	148	12	0	8	650	1.580	10.1	1.1	4.1	9.2	2.24
2023	27	-2.2	STL	NL	Maj	STL	7	6	.538	4.43	4.60	20	20	0	0	0	0	109.2	116	56	54	10	54	0	106	8	0	6	485	1.550	9.5	0.8	4.4	8.7	1.96
2023	27	-1.7	BAL	AL	Maj	BAL	1	3	.250	6.75	7.01	9	7	0	0	0	0	34.2	46	27	26	7	12	2	42	4	0	2	165	1.673	11.9	1.8	3.1	10.9	3.50
2024	28	-1.4	DET	AL	Maj	DET	0	1	.000	4.91	4.91	3	3	0	0	0	0	18.1	19	10	10	3	3	0	20	3	0	0	79	1.200	9.3	1.5	1.5	9.8	6.67
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 (8 seasons)					Majors		42	35	.545	3.78	3.99	134	128	0	0	0	0	686.0	573	304	288	91	257	9	768	48	0	25	2869	1.210	7.5	1.2	3.4	10.1	2.99
Minors (7 seasons)					Minors		34	20	.630	2.79	3.29	90	87	0	1	0	0	468.0	411	171	145	28	130	3	484	15	2	32	1919	1.156	7.9	0.5	2.5	9.3	3.72
All Levels (11 Seasons)							76	55	.580	3.38	3.70	224	215	0	1	0	0	1154.0	984	475	433	119	387	12	1252	63	2	57	4788	1.188	7.7	0.9	3.0	9.8	3.24

AAA (4 seasons)					Minors		12	5	.706	2.79	2.99	25	25	0	1	0	0	132.1	109	44	41	14	35	2	145	3	1	7	529	1.088	7.4	1.0	2.4	9.9	4.14
AA (3 seasons)					Minors		7	2	.778	1.82	1.82	15	15	0	0	0	0	84.0	63	17	17	3	15	0	88	0	0	2	323	0.929	6.8	0.3	1.6	9.4	5.87
A+ (1 season)					Minors		5	9	.357	3.56	4.23	24	23	0	0	0	0	134.0	129	63	53	8	45	0	126	2	0	11	564	1.299	8.7	0.5	3.0	8.5	2.80
A (1 season)					Minors		9	3	.750	2.84	3.60	18	18	0	0	0	0	95.0	92	38	30	2	31	0	97	7	1	10	409	1.295	8.7	0.2	2.9	9.2	3.13
Rk (1 season)					Minors		1	1	.500	1.59	3.57	8	6	0	0	0	0	22.2	18	9	4	1	4	1	28	3	0	2	94	0.971	7.1	0.4	1.6	11.1	7.00