Zack Kelly

#76 P · B/T: R/R · 6' 3", 231 lb · Age 31 · Roanoke, VA, USA · MLB debut 2022 · Boston Red Sox

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Career Graph

Season	Team	W	L	G	GS	QS	IP	IP/G	SO	K/9	BB/9	ERA	FIP	WAR
2022	BOS	1	0	13	0	—	13.2	1.1	11	7.2	2.6	3.95	—	—
2023	BOS	0	0	8	0	—	9.1	1.2	6	5.8	7.7	3.86	—	—
2024	BOS	6	3	49	3	—	56.2	1.2	61	9.7	4.3	3.97	—	—
2025	BOS	1	3	28	0	0	35.1	1.3	35	8.9	3.1	4.58	3.53	0.4
2026	BOS	0	2	17	0	0	16.1	1.0	14	7.7	3.9	3.31	3.64	0.1
2026 pace		0	3	23	0		22.1		19
Career		8	8	115	3	0	131.1	1.1	127	8.7	4.0	4.04	—	0.5

Season	Team	W	L	SV	G	GS	QS	IP	IP/G	SO	K/9	BB/9	ERA
Triple-A (AAA)
2021	WOR	1	0	1	15	0	—	18.2	1.2	29	14.0	2.4	2.89
2022	WOR	6	3	3	44	0	—	49.2	1.1	72	13.0	4.5	2.72
2023	WOR	0	1	0	3	0	—	2.0	0.7	3	13.5	4.5	18.00
2024	WOR	0	0	1	9	0	—	12.2	1.4	13	9.2	5.7	0.00
2025	WOR	1	1	3	21	1	0	26.1	1.3	30	10.3	6.8	6.15
2026	WOR	1	0	0	12	0	—	17.1	1.4	14	7.3	4.7	5.71
AAA Total		9	5	8	104	1	0	126.2	1.2	161	11.4	4.8	3.84
Double-A (AA)
2019	MOB	3	6	0	20	13	—	75.1	3.8	83	9.9	3.5	3.82
2021	POR	3	1	5	21	0	—	26.2	1.3	40	13.5	4.4	1.69
2023	POR	0	0	0	1	1	—	2.0	2.0	1	4.5	0.0	4.50
AA Total		6	7	5	42	14	—	104.0	2.5	124	10.7	3.6	3.29
High-A (A+)
2018	IE	1	0	1	4	0	—	6.2	1.7	7	9.5	2.7	5.40
2019	IE	0	1	0	1	0	—	4.0	4.0	2	4.5	0.0	0.00
2023	GVL	0	0	0	1	1	—	1.0	1.0	2	18.0	9.0	0.00
2025	GVL	0	0	0	2	1	—	2.0	1.0	2	9.0	0.0	0.00
A+ Total		1	1	1	8	2	—	13.2	1.7	13	8.6	2.0	2.63
Single-A (A)
2018	BUR	3	3	0	12	0	—	28.1	2.4	25	7.9	3.8	2.86
2023	SAL	0	2	0	2	1	—	1.0	0.5	1	9.0	36.0	27.00
A Total		3	5	0	14	1	—	29.1	2.1	26	8.0	4.9	3.68
Rookie (Rk)
2017	A-ATH	1	0	1	13	0	—	28.2	2.2	23	7.2	1.9	3.77
2018	ORM	1	0	0	2	0	—	8.0	4.0	9	10.1	2.3	1.13
Rk Total		2	0	1	15	0	—	36.2	2.4	32	7.9	2.0	3.19
Minors Total		21	18	15	183	18	0	310.1	1.7	356	10.3	4.0	3.51

Season	Team	Pos	G	Inn	PO	A	E	FPCT
2026	BOS	P	17	16.1	4	1	0	1.000
Career		P	17	16.1	4	1	0	1.000

Season	Team	Pos	G	Inn	PO	A	E	FPCT
Triple-A (AAA)
2021	WOR	P	15	18.2	1	1	0	1.000
2022	WOR	P	44	49.2	0	2	1	.667
2023	WOR	P	3	2.0	0	1	0	1.000
2024	WOR	P	9	12.2	3	1	0	1.000
2025	WOR	P	21	26.1	1	3	1	.800
2026	WOR	P	12	17.1	0	2	0	1.000
AAA Total		—	104	126.2	5	10	2	.882
Double-A (AA)
2019	MOB	P	20	75.1	1	9	1	.909
2021	POR	P	21	26.2	0	4	0	1.000
2023	POR	P	1	2.0	0	1	0	1.000
AA Total		—	42	104.0	1	14	1	.938
High-A (A+)
2018	IE	P	4	6.2	0	0	0	.000
2019	IE	P	1	4.0	1	0	0	1.000
2023	GVL	P	1	1.0	0	0	0	.000
2025	GVL	P	2	2.0	0	1	0	1.000
A+ Total		—	8	13.2	1	1	0	1.000
Single-A (A)
2018	BUR	P	12	28.1	0	4	0	1.000
2023	SAL	P	2	1.0	0	0	0	.000
A Total		—	14	29.1	0	4	0	1.000
Rookie (Rk)
2017	A-ATH	P	13	28.2	3	4	0	1.000
2018	ORM	P	2	8.0	0	1	0	1.000
Rk Total		—	15	36.2	3	5	0	1.000
Minors Total		—	183	310.1	10	34	3	.936