Isaac Coffey

Boston Red Sox (AA)

Age: 24

Bats/Throws: R/R

6'1" / 205

DOB: 6/21/2000

(24 years, 10 months, 7 days)

Stats

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege

Season	Team	Level	Age	W W - Wins	L L - Losses	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	ERA ERA - Earned Run Average ((ER*9)/IP)	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
2021	ORU	NCAA	21	9	2	14	14	86.1	9.59	1.36	0.52	.297	72.8%			2.81	2.73
2022	ORU	NCAA	22	7	6	15	15	88.1	7.95	1.63	0.71	.253	64.7%			3.77	3.55
2022	BOS	CPX	22	0	0	2	0	1.2	0.00	10.80	0.00	.333	50.0%	50.0%	0.0%	10.80	7.43	9.04
2023	BOS	A+	23	4	2	11	11	60.1	12.38	1.49	1.64	.294	83.7%	40.3%	20.4%	2.83	3.90	2.79
2023	BOS	AA	23	7	4	12	11	57.1	11.30	3.61	1.73	.257	81.5%	34.3%	16.2%	3.92	4.93	4.15
2023	BOS	MiLB	23	11	6	23	22	117.2	11.86	2.52	1.68	.276	82.4%	37.3%	18.0%	3.37	4.40	3.45
2024	BOS	AA	24	11	4	24	21	113.2	11.72	4.04	0.71	.307	77.4%	38.3%	8.7%	3.17	3.81	3.90
2025	Steamer	PROJ	25	0	0	0	0	1.0	7.78	3.58	1.34	.296	69.4%	39.6%		4.84	4.80	4.68	0.0
2025	ZiPS	PROJ	25	6	8	23	20	103.7	7.90	3.30	1.39	.292	66.3%			4.95	5.01		0.3
2025	OOPSY	PROJ	25	0	0	1	1	4.8	8.21	3.86	1.24	.294	69.3%			4.60	4.56		0.0
2025	Steamer	ROS		0	0	0	0	1.0	7.79	3.68	1.29	.296	69.4%			4.81	4.63		0.0

Season	Team	Level	Age	W W - Wins	L L - Losses	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	ERA ERA - Earned Run Average ((ER*9)/IP)	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
2021	ORU	NCAA	21	9	2	14	14	86.1	9.59	1.36	0.52	.297	72.8%			2.81	2.73
2022	ORU	NCAA	22	7	6	15	15	88.1	7.95	1.63	0.71	.253	64.7%			3.77	3.55
2022	BOS	CPX	22	0	0	2	0	1.2	0.00	10.80	0.00	.333	50.0%	50.0%	0.0%	10.80	7.43	9.04
2023	BOS	A+	23	4	2	11	11	60.1	12.38	1.49	1.64	.294	83.7%	40.3%	20.4%	2.83	3.90	2.79
2023	BOS	AA	23	7	4	12	11	57.1	11.30	3.61	1.73	.257	81.5%	34.3%	16.2%	3.92	4.93	4.15
2023	BOS	MiLB	23	11	6	23	22	117.2	11.86	2.52	1.68	.276	82.4%	37.3%	18.0%	3.37	4.40	3.45
2024	BOS	AA	24	11	4	24	21	113.2	11.72	4.04	0.71	.307	77.4%	38.3%	8.7%	3.17	3.81	3.90
2025	Steamer	PROJ	25	0	0	0	0	1.0	7.78	3.58	1.34	.296	69.4%	39.6%		4.84	4.80	4.68	0.0
2025	ZiPS	PROJ	25	6	8	23	20	103.7	7.90	3.30	1.39	.292	66.3%			4.95	5.01		0.3
2025	OOPSY	PROJ	25	0	0	1	1	4.8	8.21	3.86	1.24	.294	69.3%			4.60	4.56		0.0
2025	Steamer	ROS		0	0	0	0	1.0	7.79	3.68	1.29	.296	69.4%			4.81	4.63		0.0

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege

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	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
2021	ORU	NCAA	9	2	2.81	14	14		4	2			86.1	352	73	32	27	5	13		13	3	0	92
2022	ORU	NCAA	7	6	3.77	15	15		3	2			88.1	362	69	42	37	7	16		16	1	0	78
2022	BOS	CPX	0	0	10.80	2	0		0	0	0	0	1.2	8	2	2	2	0	2	0	0	1	0	0
2023	BOS	A+	4	2	2.83	11	11		0	0	0	0	60.1	241	51	23	19	11	10	0	1	3	0	83
2023	BOS	AA	7	4	3.92	12	11		0	0	0	0	57.1	251	46	27	25	11	23	0	9	2	0	72
2023	BOS	MiLB	11	6	3.37	23	22		0	0	0	0	117.2	492	97	50	44	22	33	0	10	5	0	155
2024	BOS	AA	11	4	3.17	24	21		0	0	0	1	113.2	494	89	47	40	9	51	0	25	3	0	148
2025	Steamer	PROJ	0	0	4.84	0	0	0	0	0	0		1.0	4	1	1	1	0	0	0	0			1
2025	ZiPS	PROJ	6	8	4.95	23	20				0		103.7	457	102	62	57	16	38	0	17	3	0	91
2025	OOPSY	PROJ	0	0	4.60	1	1	0			0		4.8	21	5	3	2	1	2	0	0			4
2025	Steamer	ROS	0	0	4.81	0	0	0	0	0	0		1.0	4	1	1	1	0	0		0			1

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	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
2021	ORU	NCAA	9	2	2.81	14	14		4	2			86.1	352	73	32	27	5	13		13	3	0	92
2022	ORU	NCAA	7	6	3.77	15	15		3	2			88.1	362	69	42	37	7	16		16	1	0	78
2022	BOS	CPX	0	0	10.80	2	0		0	0	0	0	1.2	8	2	2	2	0	2	0	0	1	0	0
2023	BOS	A+	4	2	2.83	11	11		0	0	0	0	60.1	241	51	23	19	11	10	0	1	3	0	83
2023	BOS	AA	7	4	3.92	12	11		0	0	0	0	57.1	251	46	27	25	11	23	0	9	2	0	72
2023	BOS	MiLB	11	6	3.37	23	22		0	0	0	0	117.2	492	97	50	44	22	33	0	10	5	0	155
2024	BOS	AA	11	4	3.17	24	21		0	0	0	1	113.2	494	89	47	40	9	51	0	25	3	0	148
2025	Steamer	PROJ	0	0	4.84	0	0	0	0	0	0		1.0	4	1	1	1	0	0	0	0			1
2025	ZiPS	PROJ	6	8	4.95	23	20				0		103.7	457	102	62	57	16	38	0	17	3	0	91
2025	OOPSY	PROJ	0	0	4.60	1	1	0			0		4.8	21	5	3	2	1	2	0	0			4
2025	Steamer	ROS	0	0	4.81	0	0	0	0	0	0		1.0	4	1	1	1	0	0		0			1

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAveragesCollege

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
2021	ORU	NCAA	9.59	1.36	7.08	0.52	26.1%	3.7%	22.4%	.224	1.00	.297	72.8%			2.73
2022	ORU	NCAA	7.95	1.63	4.88	0.71	21.5%	4.4%	17.1%	.209	0.96	.253	64.7%			3.55
2022	BOS	CPX	0.00	10.80	0.00	0.00	0.0%	25.0%	-25.0%	.333	2.40	.333	50.0%	226	165	7.43
2023	BOS	A+	12.38	1.49	8.30	1.64	34.4%	4.1%	30.3%	.222	1.01	.294	83.7%	63	88	3.90
2023	BOS	AA	11.30	3.61	3.13	1.73	28.7%	9.2%	19.5%	.210	1.20	.257	81.5%	89	116	4.93
2023	BOS	MiLB	11.86	2.52	4.70	1.68	31.5%	6.7%	24.8%	.216	1.10	.276	82.4%	76	102	4.40
2024	BOS	AA	11.72	4.04	2.90	0.71	30.0%	10.3%	19.6%	.213	1.23	.307	77.4%	78	97	3.81
2025	Steamer	PROJ	7.78	3.58	2.17	1.34	19.7%	9.1%	10.7%	.257	1.40	.296	69.4%			4.80
2025	ZiPS	PROJ	7.90	3.30	2.39	1.39	19.9%	8.3%	11.6%	.254	1.35	.292	66.3%			5.01
2025	OOPSY	PROJ	8.21	3.86	2.13	1.24	21.2%	9.9%	11.2%	.250	1.39	.294	69.3%			4.56
2025	Steamer	ROS	7.79	3.68	2.12	1.29	19.7%	9.3%	10.4%	.256	1.41	.296	69.4%			4.63

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
2021	ORU	NCAA	9.59	1.36	7.08	0.52	26.1%	3.7%	22.4%	.224	1.00	.297	72.8%			2.73
2022	ORU	NCAA	7.95	1.63	4.88	0.71	21.5%	4.4%	17.1%	.209	0.96	.253	64.7%			3.55
2022	BOS	CPX	0.00	10.80	0.00	0.00	0.0%	25.0%	-25.0%	.333	2.40	.333	50.0%	226	165	7.43
2023	BOS	A+	12.38	1.49	8.30	1.64	34.4%	4.1%	30.3%	.222	1.01	.294	83.7%	63	88	3.90
2023	BOS	AA	11.30	3.61	3.13	1.73	28.7%	9.2%	19.5%	.210	1.20	.257	81.5%	89	116	4.93
2023	BOS	MiLB	11.86	2.52	4.70	1.68	31.5%	6.7%	24.8%	.216	1.10	.276	82.4%	76	102	4.40
2024	BOS	AA	11.72	4.04	2.90	0.71	30.0%	10.3%	19.6%	.213	1.23	.307	77.4%	78	97	3.81
2025	Steamer	PROJ	7.78	3.58	2.17	1.34	19.7%	9.1%	10.7%	.257	1.40	.296	69.4%			4.80
2025	ZiPS	PROJ	7.90	3.30	2.39	1.39	19.9%	8.3%	11.6%	.254	1.35	.292	66.3%			5.01
2025	OOPSY	PROJ	8.21	3.86	2.13	1.24	21.2%	9.9%	11.2%	.250	1.39	.294	69.3%			4.56
2025	Steamer	ROS	7.79	3.68	2.12	1.29	19.7%	9.3%	10.4%	.256	1.41	.296	69.4%			4.63

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesCollege

Season	Team	Level	Age	W W - Wins	L L - Losses	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	SO SO - Strikeouts	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)	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 - Earned Run Average ((ER*9)/IP)	FIP FIP - Fielder Independent Pitching on an ERA scale	WAR WAR - Wins Above Replacement
2025	ZiPS	PROJ	25	6	8	23	20	103.7	102	62	57	16	38	91	7.90	3.30	2.39	1.39	.254	1.35	.292	66.3%	4.95	5.01	0.3
2026	ZiPS	PROJ	26	6	8	22	19	101.3	96	57	53	14	35	89	7.91	3.11	2.54	1.24	.246	1.29	.286	66.4%	4.71	4.72	0.6
2027	ZiPS	PROJ	27	6	8	22	19	102.0	96	56	52	13	34	89	7.85	3.00	2.62	1.15	.246	1.27	.288	66.2%	4.59	4.55	0.8

Season	Team	Level	Age	W W - Wins	L L - Losses	G G - Games Pitched	GS GS - Games Started	IP IP - Innings Pitched	H H - Hits Allowed	R R - Runs Allowed	ER ER - Earned Runs	HR HR - Home Runs	BB BB - Walks	SO SO - Strikeouts	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)	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 - Earned Run Average ((ER*9)/IP)	FIP FIP - Fielder Independent Pitching on an ERA scale	WAR WAR - Wins Above Replacement
2025	ZiPS	PROJ	25	6	8	23	20	103.7	102	62	57	16	38	91	7.90	3.30	2.39	1.39	.254	1.35	.292	66.3%	4.95	5.01	0.3
2026	ZiPS	PROJ	26	6	8	22	19	101.3	96	57	53	14	35	89	7.91	3.11	2.54	1.24	.246	1.29	.286	66.4%	4.71	4.72	0.6
2027	ZiPS	PROJ	27	6	8	22	19	102.0	96	56	52	13	34	89	7.85	3.00	2.62	1.15	.246	1.27	.288	66.2%	4.59	4.55	0.8

Isaac Coffey

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ZiPS 3 Year Projections

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