Justin Slaten

Boston Red Sox

Age: 27

Bats/Throws: R/R

6'4" / 222

DOB: 9/15/1997

(27 years, 7 months, 13 days)

Stats

Preseason 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		0.24	0.24
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		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		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	3.19	2.61	2.90	1.5
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	FGDC	PROJ	27	4	4	3	65	0	65.0	9.34	3.41	1.08	.301	73.7%				3.91		3.88		0.6
2025	Steamer	PROJ	27	3	3	3	64	0	64.0	9.30	3.36	1.02	.302	73.0%	43.6%			3.87		3.80	3.83	0.5
2025	ZiPS	PROJ	27	4	4	3	37	3	54.7	9.38	3.46	1.15	.300	74.4%				3.95		3.95		0.4
2025	ZiPS DC	PROJ	27	5	5	3	65	0	65.0	9.38	3.46	1.15	.300	74.4%				3.95		3.95		0.4
2025	ATC	PROJ	27	4	3	5	58	0	64.0	9.51	3.08	1.03	.301	72.4%				3.83		3.68		0.6
2025	THE BAT	PROJ	27	3	2	5	58	0	64.0	9.47	3.57	1.16	.293	70.9%				4.25		4.08		0.3
2025	OOPSY	PROJ	27	3	3	3	65	0	65.0	9.72	3.46	0.95	.295	73.9%				3.63		3.67		0.8
2025	BOS	MLB	27	0	0	3	11	0	10.0	8.10	1.80	0.00	.160	33.3%	24.0%	0.0%	97.3	3.60	1.99	1.85	3.94	0.4
2025	FGDC	ROS	27	3	3	7	53	0	53.0	9.36	3.36	1.02	.303	73.7%				3.83		3.64		0.6
2025	Steamer	ROS	27	3	3	7	53	0	53.0	9.31	3.40	1.00	.300	73.1%				3.84		3.66		0.4
2025	ZiPS	ROS	27	3	3		32	2	44.0	9.40	3.32	1.04	.305	74.3%				3.81		3.61		0.5
2025	ZiPS DC	ROS	27	4	3	7	53	0	53.0	9.40	3.32	1.04	.305	74.3%				3.81		3.61		0.6
2025	ATC DC	ROS	27	4	3	7	53	0	53.0	9.51	3.08	1.03	.301	72.4%				3.83		3.57		0.7
2025	THE BAT	ROS	27	2	1	7	53	0	34.0	9.31	3.64	1.24	.295	70.3%				4.45		4.14		0.1
2025	OOPSY	ROS	27	3	3	7	53	0	53.0	9.82	3.24	1.04	.291	74.2%				3.65		3.59		0.6
Total	- - -	MLB		6	2	5	55	0	65.1	9.23	1.52	0.55	.267	66.8%	46.4%	6.7%	96.7	3.03		2.49	3.06	1.8

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		0.24	0.24
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		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		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	3.19	2.61	2.90	1.5
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	FGDC	PROJ	27	4	4	3	65	0	65.0	9.34	3.41	1.08	.301	73.7%				3.91		3.88		0.6
2025	Steamer	PROJ	27	3	3	3	64	0	64.0	9.30	3.36	1.02	.302	73.0%	43.6%			3.87		3.80	3.83	0.5
2025	ZiPS	PROJ	27	4	4	3	37	3	54.7	9.38	3.46	1.15	.300	74.4%				3.95		3.95		0.4
2025	ZiPS DC	PROJ	27	5	5	3	65	0	65.0	9.38	3.46	1.15	.300	74.4%				3.95		3.95		0.4
2025	ATC	PROJ	27	4	3	5	58	0	64.0	9.51	3.08	1.03	.301	72.4%				3.83		3.68		0.6
2025	THE BAT	PROJ	27	3	2	5	58	0	64.0	9.47	3.57	1.16	.293	70.9%				4.25		4.08		0.3
2025	OOPSY	PROJ	27	3	3	3	65	0	65.0	9.72	3.46	0.95	.295	73.9%				3.63		3.67		0.8
2025	BOS	MLB	27	0	0	3	11	0	10.0	8.10	1.80	0.00	.160	33.3%	24.0%	0.0%	97.3	3.60	1.99	1.85	3.94	0.4
2025	FGDC	ROS	27	3	3	7	53	0	53.0	9.36	3.36	1.02	.303	73.7%				3.83		3.64		0.6
2025	Steamer	ROS	27	3	3	7	53	0	53.0	9.31	3.40	1.00	.300	73.1%				3.84		3.66		0.4
2025	ZiPS	ROS	27	3	3		32	2	44.0	9.40	3.32	1.04	.305	74.3%				3.81		3.61		0.5
2025	ZiPS DC	ROS	27	4	3	7	53	0	53.0	9.40	3.32	1.04	.305	74.3%				3.81		3.61		0.6
2025	ATC DC	ROS	27	4	3	7	53	0	53.0	9.51	3.08	1.03	.301	72.4%				3.83		3.57		0.7
2025	THE BAT	ROS	27	2	1	7	53	0	34.0	9.31	3.64	1.24	.295	70.3%				4.45		4.14		0.1
2025	OOPSY	ROS	27	3	3	7	53	0	53.0	9.82	3.24	1.04	.291	74.2%				3.65		3.59		0.6
Total	- - -	MLB		6	2	5	55	0	65.1	9.23	1.52	0.55	.267	66.8%	46.4%	6.7%	96.7	3.03		2.49	3.06	1.8

Preseason 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	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	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	FGDC	PROJ	4	4	3.91	65	0	0			3	15		65.0	278	61	31	28	8	25		2			67
2025	Steamer	PROJ	3	3	3.87	64	0	0	0	0	3	15		64.0	271	59	30	28	7	24	1	2			66
2025	ZiPS	PROJ	4	4	3.95	37	3				3	15		54.7	236	52	26	24	7	21	0	1	4	0	57
2025	ZiPS DC	PROJ	5	5	3.95	65	0	0			3	15		65.0	280	62	31	29	8	25		1			68
2025	ATC	PROJ	4	3	3.83	58	0	0			5	18		64.0	269	58	30	27	7	22	1	3			68
2025	THE BAT	PROJ	3	2	4.25	58	0	0			5	15		64.0	275	58	33	30	8	25	1	3			67
2025	OOPSY	PROJ	3	3	3.63	65	0	0			3	15		65.0	277	58	29	26	7	25		3			70
2025	BOS	MLB	0	0	3.60	11	0	0	0	0	3	0	0	10.0	36	4	4	4	0	2	0	0	0	0	9
2025	FGDC	ROS	3	3	3.83	53	0	0			7	9		53.0	226	50	24	23	6	20		1			55
2025	Steamer	ROS	3	3	3.84	53	0	0	0	0	7	9		53.0	225	48	24	23	6	20		2			55
2025	ZiPS	ROS	3	3	3.81	32	2							44.0	188	42	20	18	5	16		1			46
2025	ZiPS DC	ROS	4	3	3.81	53	0	0			7	9		53.0	228	51	24	22	6	20		1			55
2025	ATC DC	ROS	4	3	3.83	53	0	0			7	9		53.0	223	48	24	23	6	18		2			56
2025	THE BAT	ROS	2	1	4.45	53	0				7	9		34.0	145	31	18	17	5	14	1	2			35
2025	OOPSY	ROS	3	3	3.65	53	0	0			7	9		53.0	226	47	23	21	6	19		2			58
Total	- - -	MLB	6	2	3.03	55	0	0	0	0	5	13	3	65.1	260	51	25	22	4	11	0	2	4	0	67

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
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	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	FGDC	PROJ	4	4	3.91	65	0	0			3	15		65.0	278	61	31	28	8	25		2			67
2025	Steamer	PROJ	3	3	3.87	64	0	0	0	0	3	15		64.0	271	59	30	28	7	24	1	2			66
2025	ZiPS	PROJ	4	4	3.95	37	3				3	15		54.7	236	52	26	24	7	21	0	1	4	0	57
2025	ZiPS DC	PROJ	5	5	3.95	65	0	0			3	15		65.0	280	62	31	29	8	25		1			68
2025	ATC	PROJ	4	3	3.83	58	0	0			5	18		64.0	269	58	30	27	7	22	1	3			68
2025	THE BAT	PROJ	3	2	4.25	58	0	0			5	15		64.0	275	58	33	30	8	25	1	3			67
2025	OOPSY	PROJ	3	3	3.63	65	0	0			3	15		65.0	277	58	29	26	7	25		3			70
2025	BOS	MLB	0	0	3.60	11	0	0	0	0	3	0	0	10.0	36	4	4	4	0	2	0	0	0	0	9
2025	FGDC	ROS	3	3	3.83	53	0	0			7	9		53.0	226	50	24	23	6	20		1			55
2025	Steamer	ROS	3	3	3.84	53	0	0	0	0	7	9		53.0	225	48	24	23	6	20		2			55
2025	ZiPS	ROS	3	3	3.81	32	2							44.0	188	42	20	18	5	16		1			46
2025	ZiPS DC	ROS	4	3	3.81	53	0	0			7	9		53.0	228	51	24	22	6	20		1			55
2025	ATC DC	ROS	4	3	3.83	53	0	0			7	9		53.0	223	48	24	23	6	18		2			56
2025	THE BAT	ROS	2	1	4.45	53	0				7	9		34.0	145	31	18	17	5	14	1	2			35
2025	OOPSY	ROS	3	3	3.65	53	0	0			7	9		53.0	226	47	23	21	6	19		2			58
Total	- - -	MLB	6	2	3.03	55	0	0	0	0	5	13	3	65.1	260	51	25	22	4	11	0	2	4	0	67

Preseason 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	0.24
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	82	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%	59	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%	665	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%	69	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	ST	7.71	3.86	2.00	0.00	20.0%	10.0%	10.0%	.222	1.29	.286	33.3%	75	67	3.30
2025	FGDC	PROJ	9.34	3.41	2.74	1.08	24.3%	8.9%	15.4%	.242	1.32	.301	73.7%			3.88
2025	Steamer	PROJ	9.30	3.36	2.77	1.02	24.4%	8.8%	15.6%	.241	1.30	.302	73.0%			3.80
2025	ZiPS	PROJ	9.38	3.46	2.71	1.15	24.2%	8.9%	15.3%	.243	1.33	.300	74.4%			3.95
2025	ZiPS DC	PROJ	9.38	3.46	2.71	1.15	24.2%	8.9%	15.3%	.243	1.33	.300	74.4%			3.95
2025	ATC	PROJ	9.51	3.08	3.08	1.03	25.1%	8.1%	17.0%	.239	1.26	.301	72.4%			3.68
2025	THE BAT	PROJ	9.47	3.57	2.66	1.16	24.5%	9.2%	15.3%	.236	1.31	.293	70.9%			4.08
2025	OOPSY	PROJ	9.72	3.46	2.81	0.95	25.3%	9.0%	16.3%	.231	1.27	.295	73.9%			3.67
2025	BOS	MLB	8.10	1.80	4.50	0.00	25.0%	5.6%	19.4%	.118	0.60	.160	33.3%	88	44	1.85
2025			8.50	3.45	2.46	1.06	22.2%	9.0%	13.2%	.237	1.29	.286	72.5%			4.12
2025	FGDC	ROS	9.36	3.36	2.79	1.02	24.4%	8.7%	15.6%	.242	1.31	.303	73.7%			3.64
2025	Steamer	ROS	9.31	3.40	2.74	1.00	24.4%	8.9%	15.5%	.239	1.29	.300	73.1%			3.66
2025	ZiPS	ROS	9.40	3.32	2.83	1.04	24.3%	8.6%	15.7%	.244	1.32	.305	74.3%			3.61
2025	ZiPS DC	ROS	9.40	3.32	2.83	1.04	24.3%	8.6%	15.7%	.244	1.32	.305	74.3%			3.61
2025	ATC DC	ROS	9.51	3.08	3.08	1.03	25.1%	8.1%	17.0%	.239	1.26	.301	72.4%			3.57
2025	THE BAT	ROS	9.31	3.64	2.56	1.24	24.0%	9.4%	14.6%	.241	1.33	.295	70.3%			4.14
2025	OOPSY	ROS	9.82	3.24	3.03	1.04	25.5%	8.4%	17.1%	.230	1.25	.291	74.2%			3.59
Total	- - -	MLB	9.23	1.52	6.09	0.55	25.8%	4.2%	21.5%	.206	0.95	.267	66.8%	72	60	2.49

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	0.24
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	82	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%	59	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%	665	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%	69	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	ST	7.71	3.86	2.00	0.00	20.0%	10.0%	10.0%	.222	1.29	.286	33.3%	75	67	3.30
2025	FGDC	PROJ	9.34	3.41	2.74	1.08	24.3%	8.9%	15.4%	.242	1.32	.301	73.7%			3.88
2025	Steamer	PROJ	9.30	3.36	2.77	1.02	24.4%	8.8%	15.6%	.241	1.30	.302	73.0%			3.80
2025	ZiPS	PROJ	9.38	3.46	2.71	1.15	24.2%	8.9%	15.3%	.243	1.33	.300	74.4%			3.95
2025	ZiPS DC	PROJ	9.38	3.46	2.71	1.15	24.2%	8.9%	15.3%	.243	1.33	.300	74.4%			3.95
2025	ATC	PROJ	9.51	3.08	3.08	1.03	25.1%	8.1%	17.0%	.239	1.26	.301	72.4%			3.68
2025	THE BAT	PROJ	9.47	3.57	2.66	1.16	24.5%	9.2%	15.3%	.236	1.31	.293	70.9%			4.08
2025	OOPSY	PROJ	9.72	3.46	2.81	0.95	25.3%	9.0%	16.3%	.231	1.27	.295	73.9%			3.67
2025	BOS	MLB	8.10	1.80	4.50	0.00	25.0%	5.6%	19.4%	.118	0.60	.160	33.3%	88	44	1.85
2025			8.50	3.45	2.46	1.06	22.2%	9.0%	13.2%	.237	1.29	.286	72.5%			4.12
2025	FGDC	ROS	9.36	3.36	2.79	1.02	24.4%	8.7%	15.6%	.242	1.31	.303	73.7%			3.64
2025	Steamer	ROS	9.31	3.40	2.74	1.00	24.4%	8.9%	15.5%	.239	1.29	.300	73.1%			3.66
2025	ZiPS	ROS	9.40	3.32	2.83	1.04	24.3%	8.6%	15.7%	.244	1.32	.305	74.3%			3.61
2025	ZiPS DC	ROS	9.40	3.32	2.83	1.04	24.3%	8.6%	15.7%	.244	1.32	.305	74.3%			3.61
2025	ATC DC	ROS	9.51	3.08	3.08	1.03	25.1%	8.1%	17.0%	.239	1.26	.301	72.4%			3.57
2025	THE BAT	ROS	9.31	3.64	2.56	1.24	24.0%	9.4%	14.6%	.241	1.33	.295	70.3%			4.14
2025	OOPSY	ROS	9.82	3.24	3.03	1.04	25.5%	8.4%	17.1%	.230	1.25	.291	74.2%			3.59
Total	- - -	MLB	9.23	1.52	6.09	0.55	25.8%	4.2%	21.5%	.206	0.95	.267	66.8%	72	60	2.49

Preseason 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			6	33.3%	1.08
2024	BOS	MLB	155	87.8	112.2	8.6	6	3.9%	57	36.8%	2.93	3.19
2025	BOS	MLB	25	87.6	106.1	22.1	1	4.0%	4	16.0%	3.60	1.99
Total	- - -	MLB	180	87.8	112.2	10.5	7	3.9%	61	33.9%	3.03

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			6	33.3%	1.08
2024	BOS	MLB	155	87.8	112.2	8.6	6	3.9%	57	36.8%	2.93	3.19
2025	BOS	MLB	25	87.6	106.1	22.1	1	4.0%	4	16.0%	3.60	1.99
Total	- - -	MLB	180	87.8	112.2	10.5	7	3.9%	61	33.9%	3.03

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