Pitching

Jacob Mayers

Boston Red Sox (A+)

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Age: 22

Bats/Throws: R/R

6'5" / 205

DOB: 6/10/2004

(22 years, 2 months, 25 days)

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In-Season ProjectionsMinor LeaguesCollege

Season	Team	Level	Age	W	L	SV	G	GS	IP	divider	K/9	BB/9	HR/9	BABIP	LOB%	GB%	HR/FB	divider	vFA	divider	ERA	xERA	FIP	xFIP	WAR
2023	NICH	NCAA	19	9	1	0	15	15	75.2		12.49	6.90	0.71	.266	87.2%						2.02		4.52
2024	NICH	NCAA	20	5	1	0	18	16	70.2		13.50	9.68	1.40	.230	78.4%						4.58		6.51
2025	LSU	NCAA	21	2	0	0	17	0	15.0		15.60	12.00	0.00	.182	67.9%						4.80		5.02
2026	BOS	A	22	2	2	1	15	8	46.1		12.43	8.16	0.58	.264	69.8%	48.9%	12.5%				4.27		4.72	4.61
2026	BOS	A+	22	0	1	0	6	6	18.2		12.54	9.16	0.48	.356	69.4%	47.7%	5.6%				4.82		4.58	5.72
2026	BOS	MiLB	22	2	3	1	21	14	65.0		12.46	8.45	0.55	.294	69.6%	48.5%	9.5%				4.43		4.68	4.93
2026	Steamer	ROS	22	0	0	0	0	0	1.0		6.79	6.66	1.25	.304	69.1%						5.84		5.76		0.0
2026	OOPSY	ROS	22	0	0	0	1	1	3.1		7.66	6.33	1.18	.299	68.4%						5.43		5.44		0.0

Season	Team	Level	Age	W	L	SV	G	GS	IP	divider	K/9	BB/9	HR/9	BABIP	LOB%	GB%	HR/FB	divider	vFA	divider	ERA	xERA	FIP	xFIP	WAR
2023	NICH	NCAA	19	9	1	0	15	15	75.2		12.49	6.90	0.71	.266	87.2%						2.02		4.52
2024	NICH	NCAA	20	5	1	0	18	16	70.2		13.50	9.68	1.40	.230	78.4%						4.58		6.51
2025	LSU	NCAA	21	2	0	0	17	0	15.0		15.60	12.00	0.00	.182	67.9%						4.80		5.02
2026	BOS	A	22	2	2	1	15	8	46.1		12.43	8.16	0.58	.264	69.8%	48.9%	12.5%				4.27		4.72	4.61
2026	BOS	A+	22	0	1	0	6	6	18.2		12.54	9.16	0.48	.356	69.4%	47.7%	5.6%				4.82		4.58	5.72
2026	BOS	MiLB	22	2	3	1	21	14	65.0		12.46	8.45	0.55	.294	69.6%	48.5%	9.5%				4.43		4.68	4.93
2026	Steamer	ROS	22	0	0	0	0	0	1.0		6.79	6.66	1.25	.304	69.1%						5.84		5.76		0.0
2026	OOPSY	ROS	22	0	0	0	1	1	3.1		7.66	6.33	1.18	.299	68.4%						5.43		5.44		0.0

In-Season ProjectionsMinor LeaguesCollege

Season	Team	Level	W	L	ERA	G	GS	QS	CG	ShO	SV	HLD	BS	IP	TBF	H	R	ER	HR	BB	IBB	HBP	WP	BK	SO
2023	NICH	NCAA	9	1	2.02	15	15		0	0	0			75.2	317	44	21	17	6	58		5	3	0	105
2024	NICH	NCAA	5	1	4.58	18	16		0	0	0			70.2	320	39	38	36	11	76		5	7	0	106
2025	LSU	NCAA	2	0	4.80	17	0		0	0	0			15.0	72	4	9	8	0	20		4	2	0	26
2026	BOS	A	2	2	4.27	15	8		0	0	1	1	0	46.1	204	27	25	22	3	42	0	4	5	0	64
2026	BOS	A+	0	1	4.82	6	6		0	0	0	0	0	18.2	91	17	12	10	1	19	0	0	3	2	26
2026	BOS	MiLB	2	3	4.43	21	14		0	0	1	1	0	65.0	295	44	37	32	4	61	0	4	8	2	90
2026	Steamer	ROS	0	0	5.84	0	0	0	0	0	0	0		1.0	5	1	1	1	0	1		0			1
2026	OOPSY	ROS	0	0	5.43	1	1	0			0	0		3.1	14	3	2	2	0	2	0	0			3

Season	Team	Level	W	L	ERA	G	GS	QS	CG	ShO	SV	HLD	BS	IP	TBF	H	R	ER	HR	BB	IBB	HBP	WP	BK	SO
2023	NICH	NCAA	9	1	2.02	15	15		0	0	0			75.2	317	44	21	17	6	58		5	3	0	105
2024	NICH	NCAA	5	1	4.58	18	16		0	0	0			70.2	320	39	38	36	11	76		5	7	0	106
2025	LSU	NCAA	2	0	4.80	17	0		0	0	0			15.0	72	4	9	8	0	20		4	2	0	26
2026	BOS	A	2	2	4.27	15	8		0	0	1	1	0	46.1	204	27	25	22	3	42	0	4	5	0	64
2026	BOS	A+	0	1	4.82	6	6		0	0	0	0	0	18.2	91	17	12	10	1	19	0	0	3	2	26
2026	BOS	MiLB	2	3	4.43	21	14		0	0	1	1	0	65.0	295	44	37	32	4	61	0	4	8	2	90
2026	Steamer	ROS	0	0	5.84	0	0	0	0	0	0	0		1.0	5	1	1	1	0	1		0			1
2026	OOPSY	ROS	0	0	5.43	1	1	0			0	0		3.1	14	3	2	2	0	2	0	0			3

In-Season ProjectionsMinor LeaguesAveragesCollege

Season	Team	Level	K/9	BB/9	K/BB	HR/9	divider	K%	BB%	K-BB%	divider	AVG	WHIP	BABIP	LOB%	divider	ERA-	FIP-	divider	FIP
2023	NICH	NCAA	12.49	6.90	1.81	0.71		33.1%	18.3%	14.8%		.173	1.35	.266	87.2%					4.52
2024	NICH	NCAA	13.50	9.68	1.39	1.40		33.1%	23.8%	9.4%		.163	1.63	.230	78.4%					6.51
2025	LSU	NCAA	15.60	12.00	1.30	0.00		36.1%	27.8%	8.3%		.083	1.60	.182	67.9%					5.02
2026	BOS	A	12.43	8.16	1.52	0.58		31.4%	20.6%	10.8%		.171	1.49	.264	69.8%		86	100		4.72
2026	BOS	A+	12.54	9.16	1.37	0.48		28.6%	20.9%	7.7%		.236	1.93	.356	69.4%		93	90		4.58
2026	BOS	MiLB	12.46	8.45	1.48	0.55		30.5%	20.7%	9.8%		.191	1.62	.294	69.6%		88	97		4.68
2026	Steamer	ROS	6.79	6.66	1.02	1.25		16.0%	15.7%	0.3%		.270	1.80	.304	69.1%					5.76
2026	OOPSY	ROS	7.66	6.33	1.21	1.18		18.5%	15.3%	3.2%		.256	1.68	.299	68.4%					5.44

Season	Team	Level	K/9	BB/9	K/BB	HR/9	divider	K%	BB%	K-BB%	divider	AVG	WHIP	BABIP	LOB%	divider	ERA-	FIP-	divider	FIP
2023	NICH	NCAA	12.49	6.90	1.81	0.71		33.1%	18.3%	14.8%		.173	1.35	.266	87.2%					4.52
2024	NICH	NCAA	13.50	9.68	1.39	1.40		33.1%	23.8%	9.4%		.163	1.63	.230	78.4%					6.51
2025	LSU	NCAA	15.60	12.00	1.30	0.00		36.1%	27.8%	8.3%		.083	1.60	.182	67.9%					5.02
2026	BOS	A	12.43	8.16	1.52	0.58		31.4%	20.6%	10.8%		.171	1.49	.264	69.8%		86	100		4.72
2026	BOS	A+	12.54	9.16	1.37	0.48		28.6%	20.9%	7.7%		.236	1.93	.356	69.4%		93	90		4.58
2026	BOS	MiLB	12.46	8.45	1.48	0.55		30.5%	20.7%	9.8%		.191	1.62	.294	69.6%		88	97		4.68
2026	Steamer	ROS	6.79	6.66	1.02	1.25		16.0%	15.7%	0.3%		.270	1.80	.304	69.1%					5.76
2026	OOPSY	ROS	7.66	6.33	1.21	1.18		18.5%	15.3%	3.2%		.256	1.68	.299	68.4%					5.44