Zack Kelly

Boston Red Sox (AAA)

Age: 29

Bats/Throws: R/R

6'3" / 231

DOB: 3/3/1995

(29 years, 8 months, 27 days)

Stats

Preseason ProjectionsMinor LeaguesSpring TrainingRegular MLB Seasons

Season	Team	Level	Age	W W - Wins	L L - Losses	SV SV - Saves	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	GB% GB% - Ground Ball Percentage (GB/BIP)	HR/FB HR/FB - Home Run to Fly Ball Ratio	vFA vFA - Fourseam Fastball velocity (Pitch Info)	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA	FIP FIP - Fielder Independent Pitching on an ERA scale	xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced	WAR WAR - Wins Above Replacement
2017	OAK	R	22	1	0	1	13	0	28.2	7.22	1.88	0.31	.303	56.5%	58.1%	3.6%		3.77		3.78	4.06
2018	LAA	R	23	1	0	0	2	0	8.0	10.13	2.25	0.00	.294	71.4%	47.1%	0.0%		1.13		2.83	3.64
2018	LAA	A	23	3	3	0	12	0	28.1	7.94	3.81	0.95	.303	84.2%	42.9%	9.1%		2.86		4.68	4.33
2018	LAA	A+	23	1	0	1	4	0	6.2	9.45	2.70	0.00	.409	63.6%	61.9%	0.0%		5.40		2.56	3.11
2019	LAA	A+	24	0	1	0	1	0	4.0	4.50	0.00	0.00	.308	80.0%	53.8%	0.0%		0.00		3.41	4.83
2019	LAA	AA	24	3	6	0	20	13	75.1	9.92	3.46	0.60	.340	65.3%	51.7%	7.8%		3.82		3.19	3.17
2019	LAA Angels (ST)	ST	24	1	0	1	2	0	2.0	9.00	13.50	0.00	.000	100.0%	25.0%	0.0%		0.00		6.23	8.92
2021	BOS	AA	26	3	1	5	21	0	26.2	13.50	4.39	0.34	.321	87.1%	58.5%	6.3%		1.69		3.14	3.59
2021	BOS	AAA	26	1	0	1	15	0	18.2	13.98	2.41	0.48	.308	73.9%	45.0%	7.7%		2.89		1.92	2.45
2022	BOS	AAA	27	6	3	3	44	0	49.2	13.05	4.53	0.36	.299	65.9%	45.3%	6.5%		2.72		2.82	3.33
2022	BOS Red Sox (ST)	ST	27	1	0	0	3	0	3.0	3.00	9.00	0.00	.250	100.0%	62.5%	0.0%		0.00		5.99	8.10
2022	BOS Red Sox	MLB	27	1	0	0	13	0	13.2	7.24	2.63	1.32	.286	78.9%	45.5%	11.1%	94.7	3.95	2.79	4.28	4.33	0.0
2023	BOS	A	28	0	2	0	2	1	1.0	9.00	36.00	0.00	.600	57.1%	40.0%	0.0%		27.00		13.70	14.74
2023	BOS	A+	28	0	0	0	1	1	1.0	18.00	9.00	0.00	.000	100.0%	100.0%	0.0%		0.00		2.73	2.73
2023	BOS	AA	28	0	0	0	1	1	2.0	4.50	0.00	4.50	.000	100.0%	40.0%	33.3%		4.50		8.78	4.44
2023	BOS	AAA	28	0	1	0	3	0	2.0	13.50	4.50	9.00	.250	0.0%	50.0%	100.0%		18.00		15.07	3.99
2023	BOS Red Sox (ST)	ST	28	1	0	0	8	0	10.0	6.30	3.60	0.90	.300	89.0%	45.2%	11.1%		2.70		5.51	5.81
2023	BOS Red Sox	MLB	28	0	0	0	8	0	9.1	5.79	7.71	0.00	.259	76.5%	53.8%	0.0%	95.1	3.86	5.74	5.18	6.96	-0.1
2024	BOS Red Sox (ST)	ST	29	0	0	1	3	0	3.0	9.00	12.00	0.00	.400	75.0%	20.0%	0.0%		6.00		5.74	8.59
2024	BOS	AAA	29	0	0	1	9	0	12.2	9.24	5.68	0.00	.040	100.0%	52.0%	0.0%		0.00		3.41	4.40
2024	BOS Red Sox	MLB	29	6	3	0	49	3	56.2	9.69	4.29	1.59	.241	71.2%	47.3%	19.2%	96.6	3.97	4.28	4.84	3.94	-0.3
2025	FGDC FanGraphs DC	PROJ	30	2	2	0	44	0	44.0	9.36	4.11	1.00	.303	72.9%				4.03		4.03		0.1
2025	Steamer Steamer	PROJ	30	2	2	0	44	0	44.0	9.36	4.11	1.00	.303	72.9%	44.5%			4.03		4.03	4.04	0.2
Total	- - -	MLB		7	3	0	70	3	79.2	8.81	4.41	1.36	.252	73.5%	47.7%	15.0%	95.9	3.95		4.79	4.36	-0.3

Season	Team	Level	Age	W W - Wins	L L - Losses	SV SV - Saves	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	GB% GB% - Ground Ball Percentage (GB/BIP)	HR/FB HR/FB - Home Run to Fly Ball Ratio	vFA vFA - Fourseam Fastball velocity (Pitch Info)	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA	FIP FIP - Fielder Independent Pitching on an ERA scale	xFIP xFIP - Expected Fielder Independent Pitching where Home Runs are calculated as 10.5% of Fly Balls induced	WAR WAR - Wins Above Replacement
2017	OAK	R	22	1	0	1	13	0	28.2	7.22	1.88	0.31	.303	56.5%	58.1%	3.6%		3.77		3.78	4.06
2018	LAA	R	23	1	0	0	2	0	8.0	10.13	2.25	0.00	.294	71.4%	47.1%	0.0%		1.13		2.83	3.64
2018	LAA	A	23	3	3	0	12	0	28.1	7.94	3.81	0.95	.303	84.2%	42.9%	9.1%		2.86		4.68	4.33
2018	LAA	A+	23	1	0	1	4	0	6.2	9.45	2.70	0.00	.409	63.6%	61.9%	0.0%		5.40		2.56	3.11
2019	LAA	A+	24	0	1	0	1	0	4.0	4.50	0.00	0.00	.308	80.0%	53.8%	0.0%		0.00		3.41	4.83
2019	LAA	AA	24	3	6	0	20	13	75.1	9.92	3.46	0.60	.340	65.3%	51.7%	7.8%		3.82		3.19	3.17
2019	LAA Angels (ST)	ST	24	1	0	1	2	0	2.0	9.00	13.50	0.00	.000	100.0%	25.0%	0.0%		0.00		6.23	8.92
2021	BOS	AA	26	3	1	5	21	0	26.2	13.50	4.39	0.34	.321	87.1%	58.5%	6.3%		1.69		3.14	3.59
2021	BOS	AAA	26	1	0	1	15	0	18.2	13.98	2.41	0.48	.308	73.9%	45.0%	7.7%		2.89		1.92	2.45
2022	BOS	AAA	27	6	3	3	44	0	49.2	13.05	4.53	0.36	.299	65.9%	45.3%	6.5%		2.72		2.82	3.33
2022	BOS Red Sox (ST)	ST	27	1	0	0	3	0	3.0	3.00	9.00	0.00	.250	100.0%	62.5%	0.0%		0.00		5.99	8.10
2022	BOS Red Sox	MLB	27	1	0	0	13	0	13.2	7.24	2.63	1.32	.286	78.9%	45.5%	11.1%	94.7	3.95	2.79	4.28	4.33	0.0
2023	BOS	A	28	0	2	0	2	1	1.0	9.00	36.00	0.00	.600	57.1%	40.0%	0.0%		27.00		13.70	14.74
2023	BOS	A+	28	0	0	0	1	1	1.0	18.00	9.00	0.00	.000	100.0%	100.0%	0.0%		0.00		2.73	2.73
2023	BOS	AA	28	0	0	0	1	1	2.0	4.50	0.00	4.50	.000	100.0%	40.0%	33.3%		4.50		8.78	4.44
2023	BOS	AAA	28	0	1	0	3	0	2.0	13.50	4.50	9.00	.250	0.0%	50.0%	100.0%		18.00		15.07	3.99
2023	BOS Red Sox (ST)	ST	28	1	0	0	8	0	10.0	6.30	3.60	0.90	.300	89.0%	45.2%	11.1%		2.70		5.51	5.81
2023	BOS Red Sox	MLB	28	0	0	0	8	0	9.1	5.79	7.71	0.00	.259	76.5%	53.8%	0.0%	95.1	3.86	5.74	5.18	6.96	-0.1
2024	BOS Red Sox (ST)	ST	29	0	0	1	3	0	3.0	9.00	12.00	0.00	.400	75.0%	20.0%	0.0%		6.00		5.74	8.59
2024	BOS	AAA	29	0	0	1	9	0	12.2	9.24	5.68	0.00	.040	100.0%	52.0%	0.0%		0.00		3.41	4.40
2024	BOS Red Sox	MLB	29	6	3	0	49	3	56.2	9.69	4.29	1.59	.241	71.2%	47.3%	19.2%	96.6	3.97	4.28	4.84	3.94	-0.3
2025	FGDC FanGraphs DC	PROJ	30	2	2	0	44	0	44.0	9.36	4.11	1.00	.303	72.9%				4.03		4.03		0.1
2025	Steamer Steamer	PROJ	30	2	2	0	44	0	44.0	9.36	4.11	1.00	.303	72.9%	44.5%			4.03		4.03	4.04	0.2
Total	- - -	MLB		7	3	0	70	3	79.2	8.81	4.41	1.36	.252	73.5%	47.7%	15.0%	95.9	3.95		4.79	4.36	-0.3

Preseason ProjectionsMinor LeaguesSpring TrainingRegular MLB Seasons

Season	Team	Level	W W - Wins	L L - Losses	ERA ERA - Earned Run Average ((ER*9)/IP)	G G - Games Pitched	GS GS - Games Started	QS	CG CG - Complete Games	ShO ShO - Shoutouts	SV SV - Saves	HLD HLD - Holds	BS BS - Blown Saves	IP IP - Innings Pitched	TBF TBF - Total Batters Faced	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	HBP HBP - Hit Batters	WP WP - Wild Pitches	BK BK - Balks	SO SO - Strikeouts
2017	OAK	R	1	0	3.77	13	0		0	0	1	1	0	28.2	120	28	16	12	1	6	0	1	2	1	23
2018	LAA	R	1	0	1.13	2	0		0	0	0	0	0	8.0	28	5	2	1	0	2	0	0	1	0	9
2018	LAA	A	3	3	2.86	12	0		0	0	0	0	1	28.1	119	26	10	9	3	12	0	3	5	0	25
2018	LAA	A+	1	0	5.40	4	0		0	0	1	1	0	6.2	31	9	4	4	0	2	0	0	1	0	7
2019	LAA	A+	0	1	0.00	1	0		0	0	0	0	0	4.0	16	4	1	0	0	0	0	1	1	0	2
2019	LAA	AA	3	6	3.82	20	13		0	0	0	0	0	75.1	331	77	42	32	5	29	0	2	5	0	83
2019	LAA Angels (ST)	ST	1	0	0.00	2	0		0	0	1	0	0	2.0	9	0	0	0	0	3	0	0	0	1	2
2021	BOS	AA	3	1	1.69	21	0		0	0	5	4	1	26.2	113	18	6	5	1	13	0	6	5	2	40
2021	BOS	AAA	1	0	2.89	15	0		0	0	1	6	1	18.2	75	13	6	6	1	5	0	1	3	1	29
2022	BOS	AAA	6	3	2.72	44	0		0	0	3	7	5	49.2	209	34	23	15	2	25	3	3	4	0	72
2022	BOS Red Sox (ST)	ST	1	0	0.00	3	0		0	0	0	2	0	3.0	12	2	0	0	0	3	0	0	0	0	1
2022	BOS Red Sox	MLB	1	0	3.95	13	0	0	0	0	0	1	0	13.2	59	14	6	6	2	4	0	0	0	0	11
2023	BOS	A	0	2	27.00	2	1		0	0	0	0	0	1.0	10	3	3	3	0	4	0	0	1	0	1
2023	BOS	A+	0	0	0.00	1	1		0	0	0	0	0	1.0	4	0	0	0	0	1	0	0	0	0	2
2023	BOS	AA	0	0	4.50	1	1		0	0	0	0	0	2.0	7	1	1	1	1	0	0	0	0	0	1
2023	BOS	AAA	0	1	18.00	3	0		0	0	0	0	0	2.0	10	3	4	4	2	1	0	0	0	0	3
2023	BOS Red Sox (ST)	ST	1	0	2.70	8	0		0	0	0	0	0	10.0	44	10	3	3	1	4	0	2	0	0	7
2023	BOS Red Sox	MLB	0	0	3.86	8	0	0	0	0	0	0	0	9.1	43	7	4	4	0	8	0	2	1	0	6
2024	BOS Red Sox (ST)	ST	0	0	6.00	3	0		0	0	1	0	1	3.0	17	4	2	2	0	4	0	0	0	0	3
2024	BOS	AAA	0	0	0.00	9	0		0	0	1	3	0	12.2	46	1	0	0	0	8	0	0	0	0	13
2024	BOS Red Sox	MLB	6	3	3.97	49	3	0	0	0	0	8	1	56.2	241	44	31	25	10	27	3	2	2	1	61
2025	FGDC FanGraphs DC	PROJ	2	2	4.03	44	0				0	1		44.0	190	40	21	20	5	20		2			46
2025	Steamer Steamer	PROJ	2	2	4.03	44	0		0	0	0	1		44.0	190	40	21	20	5	20		2			46
Total	- - -	MLB	7	3	3.95	70	3	0	0	0	0	9	1	79.2	343	65	41	35	12	39	3	4	3	1	78

Season	Team	Level	W W - Wins	L L - Losses	ERA ERA - Earned Run Average ((ER*9)/IP)	G G - Games Pitched	GS GS - Games Started	QS	CG CG - Complete Games	ShO ShO - Shoutouts	SV SV - Saves	HLD HLD - Holds	BS BS - Blown Saves	IP IP - Innings Pitched	TBF TBF - Total Batters Faced	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	IBB IBB - Intentional	HBP HBP - Hit Batters	WP WP - Wild Pitches	BK BK - Balks	SO SO - Strikeouts
2017	OAK	R	1	0	3.77	13	0		0	0	1	1	0	28.2	120	28	16	12	1	6	0	1	2	1	23
2018	LAA	R	1	0	1.13	2	0		0	0	0	0	0	8.0	28	5	2	1	0	2	0	0	1	0	9
2018	LAA	A	3	3	2.86	12	0		0	0	0	0	1	28.1	119	26	10	9	3	12	0	3	5	0	25
2018	LAA	A+	1	0	5.40	4	0		0	0	1	1	0	6.2	31	9	4	4	0	2	0	0	1	0	7
2019	LAA	A+	0	1	0.00	1	0		0	0	0	0	0	4.0	16	4	1	0	0	0	0	1	1	0	2
2019	LAA	AA	3	6	3.82	20	13		0	0	0	0	0	75.1	331	77	42	32	5	29	0	2	5	0	83
2019	LAA Angels (ST)	ST	1	0	0.00	2	0		0	0	1	0	0	2.0	9	0	0	0	0	3	0	0	0	1	2
2021	BOS	AA	3	1	1.69	21	0		0	0	5	4	1	26.2	113	18	6	5	1	13	0	6	5	2	40
2021	BOS	AAA	1	0	2.89	15	0		0	0	1	6	1	18.2	75	13	6	6	1	5	0	1	3	1	29
2022	BOS	AAA	6	3	2.72	44	0		0	0	3	7	5	49.2	209	34	23	15	2	25	3	3	4	0	72
2022	BOS Red Sox (ST)	ST	1	0	0.00	3	0		0	0	0	2	0	3.0	12	2	0	0	0	3	0	0	0	0	1
2022	BOS Red Sox	MLB	1	0	3.95	13	0	0	0	0	0	1	0	13.2	59	14	6	6	2	4	0	0	0	0	11
2023	BOS	A	0	2	27.00	2	1		0	0	0	0	0	1.0	10	3	3	3	0	4	0	0	1	0	1
2023	BOS	A+	0	0	0.00	1	1		0	0	0	0	0	1.0	4	0	0	0	0	1	0	0	0	0	2
2023	BOS	AA	0	0	4.50	1	1		0	0	0	0	0	2.0	7	1	1	1	1	0	0	0	0	0	1
2023	BOS	AAA	0	1	18.00	3	0		0	0	0	0	0	2.0	10	3	4	4	2	1	0	0	0	0	3
2023	BOS Red Sox (ST)	ST	1	0	2.70	8	0		0	0	0	0	0	10.0	44	10	3	3	1	4	0	2	0	0	7
2023	BOS Red Sox	MLB	0	0	3.86	8	0	0	0	0	0	0	0	9.1	43	7	4	4	0	8	0	2	1	0	6
2024	BOS Red Sox (ST)	ST	0	0	6.00	3	0		0	0	1	0	1	3.0	17	4	2	2	0	4	0	0	0	0	3
2024	BOS	AAA	0	0	0.00	9	0		0	0	1	3	0	12.2	46	1	0	0	0	8	0	0	0	0	13
2024	BOS Red Sox	MLB	6	3	3.97	49	3	0	0	0	0	8	1	56.2	241	44	31	25	10	27	3	2	2	1	61
2025	FGDC FanGraphs DC	PROJ	2	2	4.03	44	0				0	1		44.0	190	40	21	20	5	20		2			46
2025	Steamer Steamer	PROJ	2	2	4.03	44	0		0	0	0	1		44.0	190	40	21	20	5	20		2			46
Total	- - -	MLB	7	3	3.95	70	3	0	0	0	0	9	1	79.2	343	65	41	35	12	39	3	4	3	1	78

Preseason ProjectionsMinor LeaguesSpring TrainingRegular MLB SeasonsAverages

Season	Team	Level	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	K/BB K/BB - Strikeout to Walk Ratio (SO/BB)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	AVG AVG - Batting Average Against	WHIP WHIP - Walks + Hits divided by Innings Pitched	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better	FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better	FIP FIP - Fielder Independent Pitching on an ERA scale
2017	OAK	R	7.22	1.88	3.83	0.31	19.2%	5.0%	14.2%	.248	1.19	.303	56.5%			3.78
2018	LAA	R	10.13	2.25	4.50	0.00	32.1%	7.1%	25.0%	.192	0.88	.294	71.4%			2.83
2018	LAA	A	7.94	3.81	2.08	0.95	21.0%	10.1%	10.9%	.250	1.34	.303	84.2%			4.68
2018	LAA	A+	9.45	2.70	3.50	0.00	22.6%	6.5%	16.1%	.310	1.65	.409	63.6%			2.56
2019	LAA	A+	4.50	0.00	2.00	0.00	12.5%	0.0%	12.5%	.267	1.00	.308	80.0%			3.41
2019	LAA	AA	9.92	3.46	2.86	0.60	25.1%	8.8%	16.3%	.257	1.41	.340	65.3%			3.19
2019	LAA Angels (ST)	ST	9.00	13.50	0.67	0.00	22.2%	33.3%	-11.1%	.000	1.50	.000	100.0%			6.23
2021	BOS	AA	13.50	4.39	3.08	0.34	35.4%	11.5%	23.9%	.191	1.16	.321	87.1%			3.14
2021	BOS	AAA	13.98	2.41	5.80	0.48	38.7%	6.7%	32.0%	.188	0.96	.308	73.9%			1.92
2022	BOS	AAA	13.05	4.53	2.88	0.36	34.4%	12.0%	22.5%	.188	1.19	.299	65.9%			2.82
2022	BOS Red Sox (ST)	ST	3.00	9.00	0.33	0.00	8.3%	25.0%	-16.7%	.222	1.67	.250	100.0%			5.99
2022	BOS Red Sox	MLB	7.24	2.63	2.75	1.32	18.6%	6.8%	11.9%	.255	1.32	.286	78.9%	96	108	4.28
2022	Average		8.53	3.10	2.75	1.09	22.4%	8.2%	14.3%	.240	1.27	.289	72.6%			4.06
2023	BOS	A	9.00	36.00	0.25	0.00	10.0%	40.0%	-30.0%	.500	7.00	.600	57.1%			13.70
2023	BOS	A+	18.00	9.00	2.00	0.00	50.0%	25.0%	25.0%	.000	1.00	.000	100.0%			2.73
2023	BOS	AA	4.50	0.00	1.00	4.50	14.3%	0.0%	14.3%	.143	0.50	.000	100.0%			8.78
2023	BOS	AAA	13.50	4.50	3.00	9.00	30.0%	10.0%	20.0%	.333	2.00	.250	0.0%			15.07
2023	BOS Red Sox (ST)	ST	6.30	3.60	1.75	0.90	15.9%	9.1%	6.8%	.263	1.40	.300	89.0%			5.51
2023	BOS Red Sox	MLB	5.79	7.71	0.75	0.00	14.0%	18.6%	-4.7%	.212	1.61	.259	76.5%	85	120	5.18
2023	Average		8.74	3.30	2.65	1.23	22.7%	8.6%	14.1%	.246	1.31	.295	71.9%			4.28
2024	BOS Red Sox (ST)	ST	9.00	12.00	0.75	0.00	17.6%	23.5%	-5.9%	.308	2.67	.400	75.0%			5.74
2024	BOS	AAA	9.24	5.68	1.63	0.00	28.3%	17.4%	10.9%	.026	0.71	.040	100.0%			3.41
2024	BOS Red Sox	MLB	9.69	4.29	2.26	1.59	25.3%	11.2%	14.1%	.208	1.25	.241	71.2%	93	118	4.84
2024	Average		8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	FGDC FanGraphs DC	PROJ	9.36	4.11	2.28	1.00	24.1%	10.6%	13.5%	.240	1.37	.303	72.9%			4.03
2025	Steamer Steamer	PROJ	9.36	4.11	2.28	1.00	24.1%	10.6%	13.5%	.240	1.37	.303	72.9%			4.03
Total	- - -	MLB	8.81	4.41	2.00	1.36	22.7%	11.4%	11.4%	.217	1.31	.252	73.5%	93	116	4.79

Season	Team	Level	K/9 K/9 - Strikeouts per 9 Innings ((SO*9)/IP)	BB/9 BB/9 - Walks per 9 Innings ((BB*9)/IP)	K/BB K/BB - Strikeout to Walk Ratio (SO/BB)	HR/9 HR/9 - Home Runs per 9 Innings ((HR*9)/IP)	K% K% - Strikeout Percentage (SO/TBF)	BB% BB% - Walk Percentage (BB/TBF)	K-BB% K-BB% - The difference between strikeout percentage and walk percentage	AVG AVG - Batting Average Against	WHIP WHIP - Walks + Hits divided by Innings Pitched	BABIP BABIP - Batting Average on Balls in Play	LOB% LOB% - Left on Base Percentage	ERA- ERA- - ERA adjusted for park and league where 100 is average and lower is better	FIP- FIP- - FIP adjusted for park and league where 100 is average and lower is better	FIP FIP - Fielder Independent Pitching on an ERA scale
2017	OAK	R	7.22	1.88	3.83	0.31	19.2%	5.0%	14.2%	.248	1.19	.303	56.5%			3.78
2018	LAA	R	10.13	2.25	4.50	0.00	32.1%	7.1%	25.0%	.192	0.88	.294	71.4%			2.83
2018	LAA	A	7.94	3.81	2.08	0.95	21.0%	10.1%	10.9%	.250	1.34	.303	84.2%			4.68
2018	LAA	A+	9.45	2.70	3.50	0.00	22.6%	6.5%	16.1%	.310	1.65	.409	63.6%			2.56
2019	LAA	A+	4.50	0.00	2.00	0.00	12.5%	0.0%	12.5%	.267	1.00	.308	80.0%			3.41
2019	LAA	AA	9.92	3.46	2.86	0.60	25.1%	8.8%	16.3%	.257	1.41	.340	65.3%			3.19
2019	LAA Angels (ST)	ST	9.00	13.50	0.67	0.00	22.2%	33.3%	-11.1%	.000	1.50	.000	100.0%			6.23
2021	BOS	AA	13.50	4.39	3.08	0.34	35.4%	11.5%	23.9%	.191	1.16	.321	87.1%			3.14
2021	BOS	AAA	13.98	2.41	5.80	0.48	38.7%	6.7%	32.0%	.188	0.96	.308	73.9%			1.92
2022	BOS	AAA	13.05	4.53	2.88	0.36	34.4%	12.0%	22.5%	.188	1.19	.299	65.9%			2.82
2022	BOS Red Sox (ST)	ST	3.00	9.00	0.33	0.00	8.3%	25.0%	-16.7%	.222	1.67	.250	100.0%			5.99
2022	BOS Red Sox	MLB	7.24	2.63	2.75	1.32	18.6%	6.8%	11.9%	.255	1.32	.286	78.9%	96	108	4.28
2022	Average		8.53	3.10	2.75	1.09	22.4%	8.2%	14.3%	.240	1.27	.289	72.6%			4.06
2023	BOS	A	9.00	36.00	0.25	0.00	10.0%	40.0%	-30.0%	.500	7.00	.600	57.1%			13.70
2023	BOS	A+	18.00	9.00	2.00	0.00	50.0%	25.0%	25.0%	.000	1.00	.000	100.0%			2.73
2023	BOS	AA	4.50	0.00	1.00	4.50	14.3%	0.0%	14.3%	.143	0.50	.000	100.0%			8.78
2023	BOS	AAA	13.50	4.50	3.00	9.00	30.0%	10.0%	20.0%	.333	2.00	.250	0.0%			15.07
2023	BOS Red Sox (ST)	ST	6.30	3.60	1.75	0.90	15.9%	9.1%	6.8%	.263	1.40	.300	89.0%			5.51
2023	BOS Red Sox	MLB	5.79	7.71	0.75	0.00	14.0%	18.6%	-4.7%	.212	1.61	.259	76.5%	85	120	5.18
2023	Average		8.74	3.30	2.65	1.23	22.7%	8.6%	14.1%	.246	1.31	.295	71.9%			4.28
2024	BOS Red Sox (ST)	ST	9.00	12.00	0.75	0.00	17.6%	23.5%	-5.9%	.308	2.67	.400	75.0%			5.74
2024	BOS	AAA	9.24	5.68	1.63	0.00	28.3%	17.4%	10.9%	.026	0.71	.040	100.0%			3.41
2024	BOS Red Sox	MLB	9.69	4.29	2.26	1.59	25.3%	11.2%	14.1%	.208	1.25	.241	71.2%	93	118	4.84
2024	Average		8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	FGDC FanGraphs DC	PROJ	9.36	4.11	2.28	1.00	24.1%	10.6%	13.5%	.240	1.37	.303	72.9%			4.03
2025	Steamer Steamer	PROJ	9.36	4.11	2.28	1.00	24.1%	10.6%	13.5%	.240	1.37	.303	72.9%			4.03
Total	- - -	MLB	8.81	4.41	2.00	1.36	22.7%	11.4%	11.4%	.217	1.31	.252	73.5%	93	116	4.79

Preseason ProjectionsMinor LeaguesSpring TrainingRegular MLB Seasons

Season	Team	Level	Events Events - The number of Batted Balls (TBF - SO - BB - HBP)	EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat	maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat.	LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat	Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage	Barrel% Barrel% - Percentage of batted balls that are classified as barrels	HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher	HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2022	BOS Red Sox	MLB	44	85.0	109.2	12.6	3	6.8%	11	25.0%	3.95	2.79
2023	BOS Red Sox	MLB	27	89.5	109.9	8.6	2	7.4%	12	44.4%	3.86	5.74
2024	BOS Red Sox	MLB	151	87.2	114.4	12.0	15	9.9%	47	31.1%	3.97	4.28
Total	- - -	MLB	222	87.0	114.4	11.7	20	9.0%	70	31.5%	3.95

Season	Team	Level	Events Events - The number of Batted Balls (TBF - SO - BB - HBP)	EV EV - Exit Velocity (mph) - Speed of the baseball as it comes off the bat	maxEV maxEV - Maximum Exit Velocity (mph) - Highest speed of a ball off the bat.	LA LA - Launch Angle (degree) - Vertical direction of the ball as it leaves the bat	Barrels Barrels - A batted ball with comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage	Barrel% Barrel% - Percentage of batted balls that are classified as barrels	HardHit HardHit - Number of batted balls with exit velocity of 95 mph or higher	HardHit% HardHit% - Percentage of batted balls with exit velocity of 95 mph or higher	ERA ERA - Earned Run Average ((ER*9)/IP)	xERA xERA - Expected ERA
2022	BOS Red Sox	MLB	44	85.0	109.2	12.6	3	6.8%	11	25.0%	3.95	2.79
2023	BOS Red Sox	MLB	27	89.5	109.9	8.6	2	7.4%	12	44.4%	3.86	5.74
2024	BOS Red Sox	MLB	151	87.2	114.4	12.0	15	9.9%	47	31.1%	3.97	4.28
Total	- - -	MLB	222	87.0	114.4	11.7	20	9.0%	70	31.5%	3.95

Zack Kelly

Stats

Dashboard

Standard

Advanced

Statcast

BAL	CHW	ATH
BOS	CLE	HOU
NYY	DET	LAA
TBR	KCR	SEA
TOR	MIN	TEX

ATL	CHC	ARI
MIA	CIN	COL
NYM	MIL	LAD
PHI	PIT	SDP
WSN	STL	SFG