Zack Kelly

Bats R Throws R6'3" 205 lbBorn 1995 Roanoke, USADebut 2022Team BOSContract 1 y (26) 2026: $613,989

Projections

Season	BF	K%	BB%	HR%	1B%	XBH%	PITCH+
2026	143	22.9	9.4	2.84	20.4	6.26	104.0
2027							104.1
2028							104.0

Projected rates are per plate appearance or batter faced; counting stats scale with projected playing time. Statcast measurements inform these projections as inputs and are reported as measurements, not projected.

Most similar through age 30

His ten closest age-30 comparables averaged 94 PITCH+ the next season; 7 of 10 played. Averages cover only the players who got a next season, which is why the played count matters.

#	Player	Through	PITCH+ then	Next season	Next PA / BF
1	Randy Flores	2006	99.7	98.3	253
2	Josh Edgin	2017	102.3	did not play
3	Jeff Fulchino	2010	98.4	86.8	162
4	Nick Ramirez	2020	102.5	98.7	91
5	Robert Stock	2020	100.5	60.6	45
6	Brandon Gomes	2015	99.9	did not play
7	Matt Thornton	2007	99.5	125.1	268
8	Chris Spurling	2007	101.1	did not play
9	Andrew Bellatti	2022	100.4	96.5	113
10	Steve Delabar	2014	101.9	90.2	129

Pitching

Year	Team	W	L	ERA	G	GS	SV	IP	BF	HR	BB	SO	PITCH+
2027 proj									143				104.1
2026*									71				114.2	101.9	116.1
2025	BOS	1	3	4.58	28	0	0	35.3	152	3	12	35	99.0	101.7	100.7
2024	BOS	6	3	3.97	49	3	0	56.7	241	10	27	61	102.5	100.5	102.9
2023	BOS	0	0	3.86	8	0	0	9.3	43	0	8	6	92.1	103.5	95.5
2022	BOS	1	0	3.95	13	0	0	13.7	59	2	4	11	100.1	99.6	99.7
Career		8	6	4.15	98	3	0	115.0	495	15	51	113	100.2		101.2

Fielding

Year	Team	Pos	G	Inn	PO	A	E	DP	Fld%	Runs saved
2025	BOS	P	28	35	3	2	1	0	0.833	+0.3
2024	BOS	P	49	57	9	9	0	0	1.000	+0.1
2023	BOS	P	8	9	1	1	0	1	1.000	+0.2
2022	BOS	P	13	14	1	2	0	0	1.000	-0.0

Runs saved covers the Statcast era; for catchers it includes framing.

Minor leagues

Year	Level	Team	Side	PA / BF	Line	AVG / ERA
2026	AAA	Worcester Red Sox	Pit	78	17.1 IP, 18% K	5.79
2025	AAA	Worcester Red Sox	Pit	122	26.1 IP, 25% K	6.21
2024	AAA	Worcester Red Sox	Pit	46	12.2 IP, 28% K	0.00
2022	AAA	Worcester Red Sox	Pit	209	49.2 IP, 34% K	2.74
2021	AAA	Worcester Red Sox	Pit	75	18.2 IP, 39% K	2.97
2021	AA	Portland Sea Dogs	Pit	113	26.2 IP, 35% K	1.72
2019	AA	Mobile BayBears	Pit	331	75.1 IP, 25% K	3.83
2018	A+	Inland Empire 66ers	Pit	31	6.2 IP, 23% K	5.81
2018	A	Burlington Bees	Pit	119	28.1 IP, 21% K	2.88
2018	Rk	Orem Owlz	Pit	28	8.0 IP, 32% K	1.12
2017	Rk	AZL Athletics	Pit	120	28.2 IP, 19% K	3.83

Splits

Year	vs LHP	vs RHP	Home	Away
2026	0.333	0.265	0.262	0.323
2025	0.270	0.363	0.339	0.303
2024	0.371	0.267	0.345	0.265
2023	0.369	0.363	0.354	0.380
2022	0.275	0.388	0.386	0.300

wOBA by split, from pitch level data, 2015 on. For pitchers the split is the batter side faced.

Postseason pitching

Year	W	L	ERA	G	GS	SV	IP	H	HR	BB	SO	WHIP
2025	0	0	0.00	1	0	0	0.1	0	0	0	1	0.00
Career	0	0	0.00	1	0	0	0.1	0	0	0	1	0.00