Justin Slaten

Boston Red Sox

Age: 28

Bats/Throws: R/R

6'4" / 222

DOB: 9/15/1997

(28 years, 8 months, 29 days)

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Stats

PostseasonPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

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
2019	TEX	R	21	0	0	0	1	0	1.0	9.00	0.00	0.00	.000	100.0%	50.0%	0.0%		0.00		2.27	2.27
2019	TEX	A-	21	0	2	0	10	10	15.1	12.33	4.11	1.17	.422	59.5%	23.9%	10.5%		6.46		3.98	3.39
2019	TEX	MiLB	21	0	2	0	11	10	16.1	12.12	3.86	1.10	.404	59.5%	25.0%	10.5%		6.06		3.87	3.32
2021	TEX	A+	23	4	8	0	20	19	82.1	12.02	3.39	1.86	.373	65.3%	34.1%	20.0%		6.01		5.05	4.26
2022	TEX	CPX	24	0	0	0	1	0	1.0	18.00	0.00	0.00	.000	100.0%	100.0%	0.0%		0.00		0.25	0.25
2022	TEX	AA	24	1	6	0	25	5	50.2	11.37	8.53	1.07	.344	63.2%	33.6%	12.8%		6.93		5.61	5.69
2022	TEX	MiLB	24	1	6	0	26	5	51.2	11.50	8.36	1.05	.341	63.2%	34.1%	12.8%		6.79		5.51	5.58
2023	TEX	AA	25	4	3	2	35	1	51.1	13.32	2.81	1.58	.314	81.1%	39.4%	23.7%		3.16		3.95	2.82
2023	TEX	AAA	25	1	0	0	5	0	8.1	10.80	4.32	1.08	.118	100.0%	11.1%	8.3%		1.08	3.55	4.55	5.82
2023	TEX	MiLB	25	5	3	2	40	1	59.2	12.97	3.02	1.51	.286	84.0%	35.4%	20.0%		2.87	3.55	4.03	3.24
2024	BOS	AA	26	0	0	0	1	0	0.1	27.00	27.00	0.00	1.000	50.0%	0.0%	0.0%		27.00		6.38	6.38
2024	BOS	ST	26	0	0	0	6	0	6.1	8.53	1.42	0.00	.125	75.0%	20.0%	0.0%		0.00		2.79	4.95
2024	BOS	MLB	26	6	2	2	44	0	55.1	9.43	1.46	0.65	.285	70.6%	50.0%	8.9%	96.6	2.93	3.26	2.61	2.90	1.5
2025	BOS	AAA	27	1	0	0	3	0	3.0	15.00	3.00	0.00	.167	50.0%	40.0%	0.0%		0.00	1.67	1.16	1.73
2025	BOS	ST	27	0	0	0	5	0	4.2	7.71	3.86	0.00	.286	33.3%	30.8%	0.0%		3.86		3.30	5.58
2025	BOS	MLB	27	2	4	3	36	0	34.0	6.62	2.65	0.79	.242	54.9%	40.2%	7.3%	96.9	4.24	3.49	3.69	4.41	0.4
2025	BOS	MLB	27	0	0	0	2	0	2.0	4.50	4.50	0.00	.167	66.7%	16.7%	0.0%		4.50		5.14	8.99
2026	BOS	ST	28	0	0	0	7	0	6.2	9.45	4.05	1.35	.294	52.6%	47.1%	12.5%		5.40		4.85	5.14
2026	FGDC	PROJ	28	4	4	0	61	0	61.0	8.60	3.19	1.07	.295	71.7%				4.01		3.93		0.4
2026	Steamer	PROJ	28	3	3	0	61	0	61.0	8.68	2.98	1.08	.301	72.6%	42.5%			3.97		3.87	3.94	0.4
2026	ZiPS	PROJ	28	4	3	0	37	1	42.3	8.51	3.40	1.06	.288	70.8%				4.04		3.99		0.3
2026	ZiPS DC	PROJ	28	6	4	0	61	0	61.0	8.51	3.40	1.06	.288	70.8%				4.04		3.99		0.3
2026	ATC	PROJ	28	4	4	2	55	0	60.0	8.38	2.93	1.07	.288	70.8%				3.99		3.90		0.4
2026	THE BAT	PROJ	28	3	2	2	55	0	60.0	8.15	3.35	1.25	.285	70.2%				4.45		4.39		0.2
2026	THE BAT X	PROJ	28	3	2	2	55	0	60.0	8.19	3.40	1.14	.274	71.8%				4.07		4.19		0.3
2026	OOPSY	PROJ	28	4	3	0	61	0	61.0	9.01	3.02	1.00	.297	72.8%				3.75		3.72		0.5
2026	BOS	AA	28	0	0	0	1	1	1.0	18.00	0.00	0.00	.500	100.0%	0.0%	0.0%		0.00		-0.37	1.48
2026	BOS	AAA	28	0	0	0	1	1	1.0	18.00	9.00	0.00	.500	100.0%	100.0%	0.0%		0.00	3.85	2.53	2.53
2026	BOS	MiLB	28	0	0	0	2	2	2.0	18.00	4.50	0.00	.500	100.0%	50.0%	0.0%		0.00	3.85	1.08	2.00
2026	BOS	MLB	28	0	3	0	14	0	12.1	11.68	3.65	2.92	.344	62.5%	38.9%	33.3%	96.8	7.30	4.11	5.95	3.15	-0.3
2026	FGDC	ROS	28	3	3	1	38	0	38.0	9.04	3.32	1.20	.296	71.8%				4.18		4.03		0.2
2026	Steamer	ROS	28	2	2	1	38	0	38.0	9.06	3.22	1.03	.301	73.0%				3.87		3.77		0.3
2026	ZiPS	ROS	28	2	2		21	0	23.0	9.02	3.43	1.38	.290	70.7%				4.50		4.30		0.0
2026	ZiPS DC	ROS	28	3	4	1	38	0	38.0	9.02	3.43	1.38	.290	70.7%				4.50		4.30		0.0
2026	ATC DC	ROS	28	2	3	1	38	0	38.0	8.79	3.03	1.10	.289	70.3%				4.06		3.86		0.3
2026	THE BAT	ROS	28	1	1	1	38	0	27.0	8.59	3.19	1.33	.290	70.4%				4.46		4.32		0.1
2026	THE BAT X	ROS	28	2	1	1	38	0	27.0	8.84	3.29	1.16	.282	72.2%				4.02		4.00		0.2
2026	OOPSY	ROS	28	2	2	1	38	0	38.0	9.56	3.04	0.97	.298	73.8%				3.60		3.54		0.5
Total	- - -	MLB		8	9	5	94	0	101.2	8.76	2.12	0.97	.277	64.3%	45.2%	11.2%	96.7	3.90	3.44	3.38	3.43	1.6
Postseason	- - -	MLB		0	0	0	2	0	2.0	4.50	4.50	0.00	.167	66.7%	16.7%	0.0%		4.50		5.14	8.99

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
2019	TEX	R	21	0	0	0	1	0	1.0	9.00	0.00	0.00	.000	100.0%	50.0%	0.0%		0.00		2.27	2.27
2019	TEX	A-	21	0	2	0	10	10	15.1	12.33	4.11	1.17	.422	59.5%	23.9%	10.5%		6.46		3.98	3.39
2019	TEX	MiLB	21	0	2	0	11	10	16.1	12.12	3.86	1.10	.404	59.5%	25.0%	10.5%		6.06		3.87	3.32
2021	TEX	A+	23	4	8	0	20	19	82.1	12.02	3.39	1.86	.373	65.3%	34.1%	20.0%		6.01		5.05	4.26
2022	TEX	CPX	24	0	0	0	1	0	1.0	18.00	0.00	0.00	.000	100.0%	100.0%	0.0%		0.00		0.25	0.25
2022	TEX	AA	24	1	6	0	25	5	50.2	11.37	8.53	1.07	.344	63.2%	33.6%	12.8%		6.93		5.61	5.69
2022	TEX	MiLB	24	1	6	0	26	5	51.2	11.50	8.36	1.05	.341	63.2%	34.1%	12.8%		6.79		5.51	5.58
2023	TEX	AA	25	4	3	2	35	1	51.1	13.32	2.81	1.58	.314	81.1%	39.4%	23.7%		3.16		3.95	2.82
2023	TEX	AAA	25	1	0	0	5	0	8.1	10.80	4.32	1.08	.118	100.0%	11.1%	8.3%		1.08	3.55	4.55	5.82
2023	TEX	MiLB	25	5	3	2	40	1	59.2	12.97	3.02	1.51	.286	84.0%	35.4%	20.0%		2.87	3.55	4.03	3.24
2024	BOS	AA	26	0	0	0	1	0	0.1	27.00	27.00	0.00	1.000	50.0%	0.0%	0.0%		27.00		6.38	6.38
2024	BOS	ST	26	0	0	0	6	0	6.1	8.53	1.42	0.00	.125	75.0%	20.0%	0.0%		0.00		2.79	4.95
2024	BOS	MLB	26	6	2	2	44	0	55.1	9.43	1.46	0.65	.285	70.6%	50.0%	8.9%	96.6	2.93	3.26	2.61	2.90	1.5
2025	BOS	AAA	27	1	0	0	3	0	3.0	15.00	3.00	0.00	.167	50.0%	40.0%	0.0%		0.00	1.67	1.16	1.73
2025	BOS	ST	27	0	0	0	5	0	4.2	7.71	3.86	0.00	.286	33.3%	30.8%	0.0%		3.86		3.30	5.58
2025	BOS	MLB	27	2	4	3	36	0	34.0	6.62	2.65	0.79	.242	54.9%	40.2%	7.3%	96.9	4.24	3.49	3.69	4.41	0.4
2025	BOS	MLB	27	0	0	0	2	0	2.0	4.50	4.50	0.00	.167	66.7%	16.7%	0.0%		4.50		5.14	8.99
2026	BOS	ST	28	0	0	0	7	0	6.2	9.45	4.05	1.35	.294	52.6%	47.1%	12.5%		5.40		4.85	5.14
2026	FGDC	PROJ	28	4	4	0	61	0	61.0	8.60	3.19	1.07	.295	71.7%				4.01		3.93		0.4
2026	Steamer	PROJ	28	3	3	0	61	0	61.0	8.68	2.98	1.08	.301	72.6%	42.5%			3.97		3.87	3.94	0.4
2026	ZiPS	PROJ	28	4	3	0	37	1	42.3	8.51	3.40	1.06	.288	70.8%				4.04		3.99		0.3
2026	ZiPS DC	PROJ	28	6	4	0	61	0	61.0	8.51	3.40	1.06	.288	70.8%				4.04		3.99		0.3
2026	ATC	PROJ	28	4	4	2	55	0	60.0	8.38	2.93	1.07	.288	70.8%				3.99		3.90		0.4
2026	THE BAT	PROJ	28	3	2	2	55	0	60.0	8.15	3.35	1.25	.285	70.2%				4.45		4.39		0.2
2026	THE BAT X	PROJ	28	3	2	2	55	0	60.0	8.19	3.40	1.14	.274	71.8%				4.07		4.19		0.3
2026	OOPSY	PROJ	28	4	3	0	61	0	61.0	9.01	3.02	1.00	.297	72.8%				3.75		3.72		0.5
2026	BOS	AA	28	0	0	0	1	1	1.0	18.00	0.00	0.00	.500	100.0%	0.0%	0.0%		0.00		-0.37	1.48
2026	BOS	AAA	28	0	0	0	1	1	1.0	18.00	9.00	0.00	.500	100.0%	100.0%	0.0%		0.00	3.85	2.53	2.53
2026	BOS	MiLB	28	0	0	0	2	2	2.0	18.00	4.50	0.00	.500	100.0%	50.0%	0.0%		0.00	3.85	1.08	2.00
2026	BOS	MLB	28	0	3	0	14	0	12.1	11.68	3.65	2.92	.344	62.5%	38.9%	33.3%	96.8	7.30	4.11	5.95	3.15	-0.3
2026	FGDC	ROS	28	3	3	1	38	0	38.0	9.04	3.32	1.20	.296	71.8%				4.18		4.03		0.2
2026	Steamer	ROS	28	2	2	1	38	0	38.0	9.06	3.22	1.03	.301	73.0%				3.87		3.77		0.3
2026	ZiPS	ROS	28	2	2		21	0	23.0	9.02	3.43	1.38	.290	70.7%				4.50		4.30		0.0
2026	ZiPS DC	ROS	28	3	4	1	38	0	38.0	9.02	3.43	1.38	.290	70.7%				4.50		4.30		0.0
2026	ATC DC	ROS	28	2	3	1	38	0	38.0	8.79	3.03	1.10	.289	70.3%				4.06		3.86		0.3
2026	THE BAT	ROS	28	1	1	1	38	0	27.0	8.59	3.19	1.33	.290	70.4%				4.46		4.32		0.1
2026	THE BAT X	ROS	28	2	1	1	38	0	27.0	8.84	3.29	1.16	.282	72.2%				4.02		4.00		0.2
2026	OOPSY	ROS	28	2	2	1	38	0	38.0	9.56	3.04	0.97	.298	73.8%				3.60		3.54		0.5
Total	- - -	MLB		8	9	5	94	0	101.2	8.76	2.12	0.97	.277	64.3%	45.2%	11.2%	96.7	3.90	3.44	3.38	3.43	1.6
Postseason	- - -	MLB		0	0	0	2	0	2.0	4.50	4.50	0.00	.167	66.7%	16.7%	0.0%		4.50		5.14	8.99

PostseasonPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

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 QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs	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
2019	TEX	R	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	1
2019	TEX	A-	0	2	6.46	10	10		0	0	0	0	0	15.1	75	21	13	11	2	7	0	0	1	0	21
2019	TEX	MiLB	0	2	6.06	11	10		0	0	0	0	0	16.1	78	21	13	11	2	7	0	0	1	0	22
2021	TEX	A+	4	8	6.01	20	19		0	0	0	0	0	82.1	366	93	60	55	17	31	0	4	5	1	110
2022	TEX	CPX	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	2
2022	TEX	AA	1	6	6.93	25	5		0	0	0	3	2	50.2	243	49	41	39	6	48	0	0	6	0	64
2022	TEX	MiLB	1	6	6.79	26	5		0	0	0	3	2	51.2	246	49	41	39	6	48	0	0	6	0	66
2023	TEX	AA	4	3	3.16	35	1		0	0	2	8	2	51.1	203	41	21	18	9	16	0	0	6	0	76
2023	TEX	AAA	1	0	1.08	5	0		0	0	0	1	0	8.1	32	3	1	1	1	4	0	0	0	0	10
2023	TEX	MiLB	5	3	2.87	40	1		0	0	2	9	2	59.2	235	44	22	19	10	20	0	0	6	0	86
2024	BOS	AA	0	0	27.00	1	0		0	0	0	1	0	0.1	3	1	1	1	0	1	0	0	0	0	1
2024	BOS	ST	0	0	0.00	6	0		0	0	0	1	0	6.1	24	2	1	0	0	1	0	1	0	0	6
2024	BOS	MLB	6	2	2.93	44	0	0	0	0	2	13	3	55.1	224	47	21	18	4	9	0	2	4	0	58
2025	BOS	AAA	1	0	0.00	3	0		0	0	0	2	0	3.0	12	1	1	0	0	1	0	0	1	0	5
2025	BOS	ST	0	0	3.86	5	0		0	0	0	0	0	4.2	20	4	4	2	0	2	0	0	1	0	4
2025	BOS	MLB	2	4	4.24	36	0	0	0	0	3	6	3	34.0	137	27	19	16	3	10	2	0	1	0	25
2025	BOS	MLB	0	0	4.50	2	0	0	0	0	0	0	0	2.0	9	1	1	1	0	1	0	1	1	0	1
2026	BOS	ST	0	0	5.40	7	0		0	0	0	1	0	6.2	28	6	5	4	1	3	0	0	0	0	7
2026	FGDC	PROJ	4	4	4.01	61	0	0			0	13		61.0	259	57	30	27	7	22		2			58
2026	Steamer	PROJ	3	3	3.97	61	0	0	0	0	0	13		61.0	258	58	29	27	7	20	2	2			59
2026	ZiPS	PROJ	4	3	4.04	37	1				0	13		42.3	180	39	21	19	5	16	1	1	4	0	40
2026	ZiPS DC	PROJ	6	4	4.04	61	0	0			0	13		61.0	260	56	30	27	7	23		1			58
2026	ATC	PROJ	4	4	3.99	55	0	0			2	14		60.0	251	55	29	27	7	20	2	2			56
2026	THE BAT	PROJ	3	2	4.45	55	0	0			2	13		60.0	257	57	32	30	8	22	1	3			54
2026	THE BAT X	PROJ	3	2	4.07	55	0	0			2	13		60.0	254	53	29	27	8	23	1	2			54
2026	OOPSY	PROJ	4	3	3.75	61	0	0			0	13		61.0	258	56	28	25	7	20		3			61
2026	BOS	AA	0	0	0.00	1	1		0	0	0	0	0	1.0	4	1	0	0	0	0	0	0	0	0	2
2026	BOS	AAA	0	0	0.00	1	1		0	0	0	0	0	1.0	5	1	0	0	0	1	0	0	1	0	2
2026	BOS	MiLB	0	0	0.00	2	2		0	0	0	0	0	2.0	9	2	0	0	0	1	0	0	1	0	4
2026	BOS	MLB	0	3	7.30	14	0	0	0	0	0	7	1	12.1	57	15	11	10	4	5	0	0	0	0	16
2026	FGDC	ROS	3	3	4.18	38	0	0			1	10		38.0	160	35	19	17	5	14		1			38
2026	Steamer	ROS	2	2	3.87	38	0	0	0	0	1	10		38.0	159	35	17	16	4	13		1			38
2026	ZiPS	ROS	2	2	4.50	21	0							23.0	100	22	13	12	4	9		0			23
2026	ZiPS DC	ROS	3	4	4.50	38	0	0			1	10		38.0	162	36	20	19	6	14		1			38
2026	ATC DC	ROS	2	3	4.06	38	0	0			1	10		38.0	157	34	18	17	5	13		1			37
2026	THE BAT	ROS	1	1	4.46	38	0				1	10		27.0	117	26	15	14	4	10	1	1			26
2026	THE BAT X	ROS	2	1	4.02	38	0	0			1	10		27.0	116	25	13	12	4	10	1	1			27
2026	OOPSY	ROS	2	2	3.60	38	0	0			1	10		38.0	159	34	16	15	4	13		2			40
Total	- - -	MLB	8	9	3.90	94	0	0	0	0	5	26	7	101.2	418	89	51	44	11	24	2	2	5	0	99
Postseason	- - -	MLB	0	0	4.50	2	0	0	0	0	0	0	0	2.0	9	1	1	1	0	1	0	1	1	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 QS - Quality Starts; pitched at least 6 innings and gave up 3 or fewer earned runs	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
2019	TEX	R	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	1
2019	TEX	A-	0	2	6.46	10	10		0	0	0	0	0	15.1	75	21	13	11	2	7	0	0	1	0	21
2019	TEX	MiLB	0	2	6.06	11	10		0	0	0	0	0	16.1	78	21	13	11	2	7	0	0	1	0	22
2021	TEX	A+	4	8	6.01	20	19		0	0	0	0	0	82.1	366	93	60	55	17	31	0	4	5	1	110
2022	TEX	CPX	0	0	0.00	1	0		0	0	0	0	0	1.0	3	0	0	0	0	0	0	0	0	0	2
2022	TEX	AA	1	6	6.93	25	5		0	0	0	3	2	50.2	243	49	41	39	6	48	0	0	6	0	64
2022	TEX	MiLB	1	6	6.79	26	5		0	0	0	3	2	51.2	246	49	41	39	6	48	0	0	6	0	66
2023	TEX	AA	4	3	3.16	35	1		0	0	2	8	2	51.1	203	41	21	18	9	16	0	0	6	0	76
2023	TEX	AAA	1	0	1.08	5	0		0	0	0	1	0	8.1	32	3	1	1	1	4	0	0	0	0	10
2023	TEX	MiLB	5	3	2.87	40	1		0	0	2	9	2	59.2	235	44	22	19	10	20	0	0	6	0	86
2024	BOS	AA	0	0	27.00	1	0		0	0	0	1	0	0.1	3	1	1	1	0	1	0	0	0	0	1
2024	BOS	ST	0	0	0.00	6	0		0	0	0	1	0	6.1	24	2	1	0	0	1	0	1	0	0	6
2024	BOS	MLB	6	2	2.93	44	0	0	0	0	2	13	3	55.1	224	47	21	18	4	9	0	2	4	0	58
2025	BOS	AAA	1	0	0.00	3	0		0	0	0	2	0	3.0	12	1	1	0	0	1	0	0	1	0	5
2025	BOS	ST	0	0	3.86	5	0		0	0	0	0	0	4.2	20	4	4	2	0	2	0	0	1	0	4
2025	BOS	MLB	2	4	4.24	36	0	0	0	0	3	6	3	34.0	137	27	19	16	3	10	2	0	1	0	25
2025	BOS	MLB	0	0	4.50	2	0	0	0	0	0	0	0	2.0	9	1	1	1	0	1	0	1	1	0	1
2026	BOS	ST	0	0	5.40	7	0		0	0	0	1	0	6.2	28	6	5	4	1	3	0	0	0	0	7
2026	FGDC	PROJ	4	4	4.01	61	0	0			0	13		61.0	259	57	30	27	7	22		2			58
2026	Steamer	PROJ	3	3	3.97	61	0	0	0	0	0	13		61.0	258	58	29	27	7	20	2	2			59
2026	ZiPS	PROJ	4	3	4.04	37	1				0	13		42.3	180	39	21	19	5	16	1	1	4	0	40
2026	ZiPS DC	PROJ	6	4	4.04	61	0	0			0	13		61.0	260	56	30	27	7	23		1			58
2026	ATC	PROJ	4	4	3.99	55	0	0			2	14		60.0	251	55	29	27	7	20	2	2			56
2026	THE BAT	PROJ	3	2	4.45	55	0	0			2	13		60.0	257	57	32	30	8	22	1	3			54
2026	THE BAT X	PROJ	3	2	4.07	55	0	0			2	13		60.0	254	53	29	27	8	23	1	2			54
2026	OOPSY	PROJ	4	3	3.75	61	0	0			0	13		61.0	258	56	28	25	7	20		3			61
2026	BOS	AA	0	0	0.00	1	1		0	0	0	0	0	1.0	4	1	0	0	0	0	0	0	0	0	2
2026	BOS	AAA	0	0	0.00	1	1		0	0	0	0	0	1.0	5	1	0	0	0	1	0	0	1	0	2
2026	BOS	MiLB	0	0	0.00	2	2		0	0	0	0	0	2.0	9	2	0	0	0	1	0	0	1	0	4
2026	BOS	MLB	0	3	7.30	14	0	0	0	0	0	7	1	12.1	57	15	11	10	4	5	0	0	0	0	16
2026	FGDC	ROS	3	3	4.18	38	0	0			1	10		38.0	160	35	19	17	5	14		1			38
2026	Steamer	ROS	2	2	3.87	38	0	0	0	0	1	10		38.0	159	35	17	16	4	13		1			38
2026	ZiPS	ROS	2	2	4.50	21	0							23.0	100	22	13	12	4	9		0			23
2026	ZiPS DC	ROS	3	4	4.50	38	0	0			1	10		38.0	162	36	20	19	6	14		1			38
2026	ATC DC	ROS	2	3	4.06	38	0	0			1	10		38.0	157	34	18	17	5	13		1			37
2026	THE BAT	ROS	1	1	4.46	38	0				1	10		27.0	117	26	15	14	4	10	1	1			26
2026	THE BAT X	ROS	2	1	4.02	38	0	0			1	10		27.0	116	25	13	12	4	10	1	1			27
2026	OOPSY	ROS	2	2	3.60	38	0	0			1	10		38.0	159	34	16	15	4	13		2			40
Total	- - -	MLB	8	9	3.90	94	0	0	0	0	5	26	7	101.2	418	89	51	44	11	24	2	2	5	0	99
Postseason	- - -	MLB	0	0	4.50	2	0	0	0	0	0	0	0	2.0	9	1	1	1	0	1	0	1	1	0	1

PostseasonPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular SeasonAverages

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
2019	TEX	R	9.00	0.00	1.00	0.00	33.3%	0.0%	33.3%	.000	0.00	.000	100.0%	0	51	2.27
2019	TEX	A-	12.33	4.11	3.00	1.17	28.0%	9.3%	18.7%	.309	1.83	.422	59.5%	167	98	3.98
2019	TEX	MiLB	12.12	3.86	3.14	1.10	28.2%	9.0%	19.2%	.296	1.71	.404	59.5%	157	95	3.87
2021	TEX	A+	12.02	3.39	3.55	1.86	30.1%	8.5%	21.6%	.281	1.51	.373	65.3%	130	108	5.05
2022	TEX	CPX	18.00	0.00	2.00	0.00	66.7%	0.0%	66.7%	.000	0.00	.000	100.0%	0	5	0.25
2022	TEX	AA	11.37	8.53	1.33	1.07	26.3%	19.8%	6.6%	.251	1.91	.344	63.2%	134	110	5.61
2022	TEX	MiLB	11.50	8.36	1.38	1.05	26.8%	19.5%	7.3%	.247	1.88	.341	63.2%	131	108	5.51
2023	TEX	AA	13.32	2.81	4.75	1.58	37.4%	7.9%	29.6%	.219	1.11	.314	81.1%	65	82	3.95
2023	TEX	AAA	10.80	4.32	2.50	1.08	31.3%	12.5%	18.8%	.107	0.84	.118	100.0%	20	83	4.55
2023	TEX	MiLB	12.97	3.02	4.30	1.51	36.6%	8.5%	28.1%	.205	1.07	.286	84.0%	58	82	4.03
2024	BOS	AA	27.00	27.00	1.00	0.00	33.3%	33.3%	0.0%	.500	6.00	1.000	50.0%	669	162	6.38
2024	BOS	ST	8.53	1.42	6.00	0.00	25.0%	4.2%	20.8%	.091	0.47	.125	75.0%	0	60	2.79
2024	BOS	MLB	9.43	1.46	6.44	0.65	25.9%	4.0%	21.9%	.221	1.01	.285	70.6%	70	63	2.61
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	BOS	AAA	15.00	3.00	5.00	0.00	41.7%	8.3%	33.3%	.091	0.67	.167	50.0%	0	25	1.16
2025	BOS	ST	7.71	3.86	2.00	0.00	20.0%	10.0%	10.0%	.222	1.29	.286	33.3%	75	68	3.30
2025	BOS	MLB	6.62	2.65	2.50	0.79	18.2%	7.3%	10.9%	.213	1.09	.242	54.9%	99	88	3.69
2025	BOS	MLB	4.50	4.50	1.00	0.00	11.1%	11.1%	0.0%	.143	1.00	.167	66.7%	105	123	5.14
2025			8.49	3.21	2.64	1.18	22.2%	8.4%	13.8%	.242	1.29	.289	72.3%			4.22
2026	BOS	ST	9.45	4.05	2.33	1.35	25.0%	10.7%	14.3%	.240	1.35	.294	52.6%	103	98	4.85
2026	FGDC	PROJ	8.60	3.19	2.69	1.07	22.5%	8.4%	14.1%	.244	1.29	.295	71.7%			3.93
2026	Steamer	PROJ	8.68	2.98	2.91	1.08	22.8%	7.8%	15.0%	.248	1.29	.301	72.6%			3.87
2026	ZiPS	PROJ	8.51	3.40	2.50	1.06	22.2%	8.9%	13.3%	.239	1.30	.288	70.8%			3.99
2026	ZiPS DC	PROJ	8.51	3.40	2.50	1.06	22.2%	8.9%	13.3%	.239	1.30	.288	70.8%			3.99
2026	ATC	PROJ	8.38	2.93	2.86	1.07	22.2%	7.8%	14.4%	.240	1.25	.288	70.8%			3.90
2026	THE BAT	PROJ	8.15	3.35	2.43	1.25	21.1%	8.7%	12.4%	.244	1.32	.285	70.2%			4.39
2026	THE BAT X	PROJ	8.19	3.40	2.41	1.14	21.5%	8.9%	12.5%	.233	1.27	.274	71.8%			4.19
2026	OOPSY	PROJ	9.01	3.02	2.99	1.00	23.7%	7.9%	15.7%	.240	1.26	.297	72.8%			3.72
2026	BOS	AA	18.00	0.00	2.00	0.00	50.0%	0.0%	50.0%	.250	1.00	.500	100.0%	0	-8	-0.37
2026	BOS	AAA	18.00	9.00	2.00	0.00	40.0%	20.0%	20.0%	.250	2.00	.500	100.0%	0	52	2.53
2026	BOS	MiLB	18.00	4.50	4.00	0.00	44.4%	11.1%	33.3%	.250	1.50	.500	100.0%	0	22	1.08
2026	BOS	MLB	11.68	3.65	3.20	2.92	28.1%	8.8%	19.3%	.288	1.62	.344	62.5%	168	142	5.95
2026			8.47	3.53	2.40	1.12	22.0%	9.2%	12.8%	.239	1.31	.286	72.1%			4.27
2026	FGDC	ROS	9.04	3.32	2.72	1.20	23.5%	8.7%	14.9%	.243	1.31	.296	71.8%			4.03
2026	Steamer	ROS	9.06	3.22	2.81	1.03	23.8%	8.5%	15.3%	.243	1.29	.301	73.0%			3.77
2026	ZiPS	ROS	9.02	3.43	2.63	1.38	23.3%	8.9%	14.4%	.244	1.33	.290	70.7%			4.30
2026	ZiPS DC	ROS	9.02	3.43	2.63	1.38	23.3%	8.9%	14.4%	.244	1.33	.290	70.7%			4.30
2026	ATC DC	ROS	8.79	3.03	2.90	1.10	23.3%	8.0%	15.3%	.238	1.25	.289	70.3%			3.86
2026	THE BAT	ROS	8.59	3.19	2.70	1.33	22.3%	8.3%	14.0%	.246	1.31	.290	70.4%			4.32
2026	THE BAT X	ROS	8.84	3.29	2.69	1.16	23.1%	8.6%	14.5%	.234	1.27	.282	72.2%			4.00
2026	OOPSY	ROS	9.56	3.04	3.15	0.97	25.1%	8.0%	17.1%	.235	1.24	.298	73.8%			3.54
Total	- - -	MLB	8.76	2.12	4.13	0.97	23.7%	5.7%	17.9%	.227	1.11	.277	64.3%	92	81	3.38
Postseason	- - -	MLB	4.50	4.50	1.00	0.00	11.1%	11.1%	0.0%	.143	1.00	.167	66.7%	105	123	5.14

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
2019	TEX	R	9.00	0.00	1.00	0.00	33.3%	0.0%	33.3%	.000	0.00	.000	100.0%	0	51	2.27
2019	TEX	A-	12.33	4.11	3.00	1.17	28.0%	9.3%	18.7%	.309	1.83	.422	59.5%	167	98	3.98
2019	TEX	MiLB	12.12	3.86	3.14	1.10	28.2%	9.0%	19.2%	.296	1.71	.404	59.5%	157	95	3.87
2021	TEX	A+	12.02	3.39	3.55	1.86	30.1%	8.5%	21.6%	.281	1.51	.373	65.3%	130	108	5.05
2022	TEX	CPX	18.00	0.00	2.00	0.00	66.7%	0.0%	66.7%	.000	0.00	.000	100.0%	0	5	0.25
2022	TEX	AA	11.37	8.53	1.33	1.07	26.3%	19.8%	6.6%	.251	1.91	.344	63.2%	134	110	5.61
2022	TEX	MiLB	11.50	8.36	1.38	1.05	26.8%	19.5%	7.3%	.247	1.88	.341	63.2%	131	108	5.51
2023	TEX	AA	13.32	2.81	4.75	1.58	37.4%	7.9%	29.6%	.219	1.11	.314	81.1%	65	82	3.95
2023	TEX	AAA	10.80	4.32	2.50	1.08	31.3%	12.5%	18.8%	.107	0.84	.118	100.0%	20	83	4.55
2023	TEX	MiLB	12.97	3.02	4.30	1.51	36.6%	8.5%	28.1%	.205	1.07	.286	84.0%	58	82	4.03
2024	BOS	AA	27.00	27.00	1.00	0.00	33.3%	33.3%	0.0%	.500	6.00	1.000	50.0%	669	162	6.38
2024	BOS	ST	8.53	1.42	6.00	0.00	25.0%	4.2%	20.8%	.091	0.47	.125	75.0%	0	60	2.79
2024	BOS	MLB	9.43	1.46	6.44	0.65	25.9%	4.0%	21.9%	.221	1.01	.285	70.6%	70	63	2.61
2024			8.60	3.12	2.76	1.14	22.6%	8.2%	14.4%	.241	1.27	.289	72.1%			4.11
2025	BOS	AAA	15.00	3.00	5.00	0.00	41.7%	8.3%	33.3%	.091	0.67	.167	50.0%	0	25	1.16
2025	BOS	ST	7.71	3.86	2.00	0.00	20.0%	10.0%	10.0%	.222	1.29	.286	33.3%	75	68	3.30
2025	BOS	MLB	6.62	2.65	2.50	0.79	18.2%	7.3%	10.9%	.213	1.09	.242	54.9%	99	88	3.69
2025	BOS	MLB	4.50	4.50	1.00	0.00	11.1%	11.1%	0.0%	.143	1.00	.167	66.7%	105	123	5.14
2025			8.49	3.21	2.64	1.18	22.2%	8.4%	13.8%	.242	1.29	.289	72.3%			4.22
2026	BOS	ST	9.45	4.05	2.33	1.35	25.0%	10.7%	14.3%	.240	1.35	.294	52.6%	103	98	4.85
2026	FGDC	PROJ	8.60	3.19	2.69	1.07	22.5%	8.4%	14.1%	.244	1.29	.295	71.7%			3.93
2026	Steamer	PROJ	8.68	2.98	2.91	1.08	22.8%	7.8%	15.0%	.248	1.29	.301	72.6%			3.87
2026	ZiPS	PROJ	8.51	3.40	2.50	1.06	22.2%	8.9%	13.3%	.239	1.30	.288	70.8%			3.99
2026	ZiPS DC	PROJ	8.51	3.40	2.50	1.06	22.2%	8.9%	13.3%	.239	1.30	.288	70.8%			3.99
2026	ATC	PROJ	8.38	2.93	2.86	1.07	22.2%	7.8%	14.4%	.240	1.25	.288	70.8%			3.90
2026	THE BAT	PROJ	8.15	3.35	2.43	1.25	21.1%	8.7%	12.4%	.244	1.32	.285	70.2%			4.39
2026	THE BAT X	PROJ	8.19	3.40	2.41	1.14	21.5%	8.9%	12.5%	.233	1.27	.274	71.8%			4.19
2026	OOPSY	PROJ	9.01	3.02	2.99	1.00	23.7%	7.9%	15.7%	.240	1.26	.297	72.8%			3.72
2026	BOS	AA	18.00	0.00	2.00	0.00	50.0%	0.0%	50.0%	.250	1.00	.500	100.0%	0	-8	-0.37
2026	BOS	AAA	18.00	9.00	2.00	0.00	40.0%	20.0%	20.0%	.250	2.00	.500	100.0%	0	52	2.53
2026	BOS	MiLB	18.00	4.50	4.00	0.00	44.4%	11.1%	33.3%	.250	1.50	.500	100.0%	0	22	1.08
2026	BOS	MLB	11.68	3.65	3.20	2.92	28.1%	8.8%	19.3%	.288	1.62	.344	62.5%	168	142	5.95
2026			8.47	3.53	2.40	1.12	22.0%	9.2%	12.8%	.239	1.31	.286	72.1%			4.27
2026	FGDC	ROS	9.04	3.32	2.72	1.20	23.5%	8.7%	14.9%	.243	1.31	.296	71.8%			4.03
2026	Steamer	ROS	9.06	3.22	2.81	1.03	23.8%	8.5%	15.3%	.243	1.29	.301	73.0%			3.77
2026	ZiPS	ROS	9.02	3.43	2.63	1.38	23.3%	8.9%	14.4%	.244	1.33	.290	70.7%			4.30
2026	ZiPS DC	ROS	9.02	3.43	2.63	1.38	23.3%	8.9%	14.4%	.244	1.33	.290	70.7%			4.30
2026	ATC DC	ROS	8.79	3.03	2.90	1.10	23.3%	8.0%	15.3%	.238	1.25	.289	70.3%			3.86
2026	THE BAT	ROS	8.59	3.19	2.70	1.33	22.3%	8.3%	14.0%	.246	1.31	.290	70.4%			4.32
2026	THE BAT X	ROS	8.84	3.29	2.69	1.16	23.1%	8.6%	14.5%	.234	1.27	.282	72.2%			4.00
2026	OOPSY	ROS	9.56	3.04	3.15	0.97	25.1%	8.0%	17.1%	.235	1.24	.298	73.8%			3.54
Total	- - -	MLB	8.76	2.12	4.13	0.97	23.7%	5.7%	17.9%	.227	1.11	.277	64.3%	92	81	3.38
Postseason	- - -	MLB	4.50	4.50	1.00	0.00	11.1%	11.1%	0.0%	.143	1.00	.167	66.7%	105	123	5.14

PostseasonPreseason ProjectionsIn-Season ProjectionsMinor LeaguesSpring TrainingMLB Regular Season

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
2023	TEX	AAA	18	88.7	101.4	27.9	1	5.6%	6	33.3%	1.08	3.55
2024	BOS	MLB	155	87.8	112.2	8.6	6	3.9%	57	36.8%	2.93	3.26
2025	BOS	AAA	6	89.4	99.9	7.8	0	0.0%	3	50.0%	0.00	1.67
2025	BOS	MLB	102	89.1	116.2	12.3	8	7.8%	35	34.3%	4.24	3.49
2026	BOS	ST	18	95.4	110.0	8.8	0	0.0%	11	61.1%	5.40
2026	BOS	AAA	2	63.7	100.5	-14.5	0	0.0%	1	50.0%	0.00	3.85
2026	BOS	MLB	36	89.5	109.4	8.2	4	11.1%	17	47.2%	7.30	4.11
Total	- - -	MLB	293	88.5	116.2	9.9	18	6.1%	109	37.2%	3.90	3.44

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
2023	TEX	AAA	18	88.7	101.4	27.9	1	5.6%	6	33.3%	1.08	3.55
2024	BOS	MLB	155	87.8	112.2	8.6	6	3.9%	57	36.8%	2.93	3.26
2025	BOS	AAA	6	89.4	99.9	7.8	0	0.0%	3	50.0%	0.00	1.67
2025	BOS	MLB	102	89.1	116.2	12.3	8	7.8%	35	34.3%	4.24	3.49
2026	BOS	ST	18	95.4	110.0	8.8	0	0.0%	11	61.1%	5.40
2026	BOS	AAA	2	63.7	100.5	-14.5	0	0.0%	1	50.0%	0.00	3.85
2026	BOS	MLB	36	89.5	109.4	8.2	4	11.1%	17	47.2%	7.30	4.11
Total	- - -	MLB	293	88.5	116.2	9.9	18	6.1%	109	37.2%	3.90	3.44

Justin Slaten

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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