Pitching

Jacob Denner

Seattle Mariners (A+)

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Age: 26

Bats/Throws: L/L

6'0" / 195

DOB: 8/14/2000

(26 years, 13 days)

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Preseason ProjectionsIn-Season ProjectionsMinor Leagues

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
2025	SEA	CPX	24	2	0	3	16	0	28.0		9.96	2.89	0.00	.392	65.0%	53.9%	0.0%				3.21		3.25	3.82
2025	SEA	A+	24	0	1	0	9	0	18.2		7.23	1.45	1.45	.333	62.5%	53.6%	18.8%				4.34		4.57	3.69
2025	SEA	MiLB	24	2	1	3	25	0	46.2		8.87	2.31	0.58	.368	64.1%	53.8%	8.8%				3.66		3.78	3.77
2026	Steamer	PROJ	25	0	0	0	1	0	1.0		6.33	5.07	1.19	.291	72.2%	43.4%					4.83		5.26	5.34	0.0
2026	OOPSY	PROJ	25	0	0	0	1	0	1.8		5.54	3.66	1.16	.280	66.0%						4.85		4.95		0.0
2026	SEA	A+	25	0	1	0	3	3	11.2		13.11	3.09	1.54	.276	62.5%	42.9%	28.6%				3.86		4.03	2.92
2026	Steamer	ROS	25	0	0	0	0	0	1.0		5.88	4.26	1.32	.296	70.6%						5.06		5.23		0.0
2026	OOPSY	ROS	25	0	0	0	1	1	2.4		7.28	3.89	1.26	.285	70.7%						4.63		4.79		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
2025	SEA	CPX	24	2	0	3	16	0	28.0		9.96	2.89	0.00	.392	65.0%	53.9%	0.0%				3.21		3.25	3.82
2025	SEA	A+	24	0	1	0	9	0	18.2		7.23	1.45	1.45	.333	62.5%	53.6%	18.8%				4.34		4.57	3.69
2025	SEA	MiLB	24	2	1	3	25	0	46.2		8.87	2.31	0.58	.368	64.1%	53.8%	8.8%				3.66		3.78	3.77
2026	Steamer	PROJ	25	0	0	0	1	0	1.0		6.33	5.07	1.19	.291	72.2%	43.4%					4.83		5.26	5.34	0.0
2026	OOPSY	PROJ	25	0	0	0	1	0	1.8		5.54	3.66	1.16	.280	66.0%						4.85		4.95		0.0
2026	SEA	A+	25	0	1	0	3	3	11.2		13.11	3.09	1.54	.276	62.5%	42.9%	28.6%				3.86		4.03	2.92
2026	Steamer	ROS	25	0	0	0	0	0	1.0		5.88	4.26	1.32	.296	70.6%						5.06		5.23		0.0
2026	OOPSY	ROS	25	0	0	0	1	1	2.4		7.28	3.89	1.26	.285	70.7%						4.63		4.79		0.0

Preseason ProjectionsIn-Season ProjectionsMinor Leagues

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
2025	SEA	CPX	2	0	3.21	16	0		0	0	3	2	3	28.0	119	31	14	10	0	9	0	0	1	0	31
2025	SEA	A+	0	1	4.34	9	0		0	0	0	0	0	18.2	76	21	12	9	3	3	0	1	0	0	15
2025	SEA	MiLB	2	1	3.66	25	0		0	0	3	2	3	46.2	195	52	26	19	3	12	0	1	1	0	46
2026	Steamer	PROJ	0	0	4.83	1	0	0	0	0	0	0		1.0	5	1	1	1	0	1	0	0			1
2026	OOPSY	PROJ	0	0	4.85	1	0	0			0	0		1.8	8	2	1	1	0	1	0	0			1
2026	SEA	A+	0	1	3.86	3	3		0	0	0	0	0	11.2	52	10	7	5	2	4	0	0	0	0	17
2026	Steamer	ROS	0	0	5.06	0	0	0	0	0	0	0		1.0	5	1	1	1	0	0		0			1
2026	OOPSY	ROS	0	0	4.63	1	1	0			0	0		2.4	11	2	1	1	0	1	0	0			2

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
2025	SEA	CPX	2	0	3.21	16	0		0	0	3	2	3	28.0	119	31	14	10	0	9	0	0	1	0	31
2025	SEA	A+	0	1	4.34	9	0		0	0	0	0	0	18.2	76	21	12	9	3	3	0	1	0	0	15
2025	SEA	MiLB	2	1	3.66	25	0		0	0	3	2	3	46.2	195	52	26	19	3	12	0	1	1	0	46
2026	Steamer	PROJ	0	0	4.83	1	0	0	0	0	0	0		1.0	5	1	1	1	0	1	0	0			1
2026	OOPSY	PROJ	0	0	4.85	1	0	0			0	0		1.8	8	2	1	1	0	1	0	0			1
2026	SEA	A+	0	1	3.86	3	3		0	0	0	0	0	11.2	52	10	7	5	2	4	0	0	0	0	17
2026	Steamer	ROS	0	0	5.06	0	0	0	0	0	0	0		1.0	5	1	1	1	0	0		0			1
2026	OOPSY	ROS	0	0	4.63	1	1	0			0	0		2.4	11	2	1	1	0	1	0	0			2

Preseason ProjectionsIn-Season ProjectionsMinor LeaguesAverages

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
2025	SEA	CPX	9.96	2.89	3.44	0.00		26.1%	7.6%	18.5%		.282	1.43	.392	65.0%		66	66		3.25
2025	SEA	A+	7.23	1.45	5.00	1.45		19.7%	3.9%	15.8%		.292	1.29	.333	62.5%		92	98		4.57
2025	SEA	MiLB	8.87	2.31	3.83	0.58		23.6%	6.2%	17.4%		.286	1.37	.368	64.1%		76	79		3.78
2026	Steamer	PROJ	6.33	5.07	1.25	1.19		15.5%	12.4%	3.1%		.263	1.60	.291	72.2%					5.26
2026	OOPSY	PROJ	5.54	3.66	1.51	1.16		14.6%	9.6%	4.9%		.259	1.38	.280	66.0%					4.95
2026	SEA	A+	13.11	3.09	4.25	1.54		32.7%	7.7%	25.0%		.208	1.20	.276	62.5%		74	78		4.03
2026	Steamer	ROS	5.88	4.26	1.38	1.32		14.5%	10.5%	4.0%		.273	1.56	.296	70.6%					5.23
2026	OOPSY	ROS	7.28	3.89	1.87	1.26		18.0%	9.6%	8.4%		.253	1.45	.285	70.7%					4.79

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
2025	SEA	CPX	9.96	2.89	3.44	0.00		26.1%	7.6%	18.5%		.282	1.43	.392	65.0%		66	66		3.25
2025	SEA	A+	7.23	1.45	5.00	1.45		19.7%	3.9%	15.8%		.292	1.29	.333	62.5%		92	98		4.57
2025	SEA	MiLB	8.87	2.31	3.83	0.58		23.6%	6.2%	17.4%		.286	1.37	.368	64.1%		76	79		3.78
2026	Steamer	PROJ	6.33	5.07	1.25	1.19		15.5%	12.4%	3.1%		.263	1.60	.291	72.2%					5.26
2026	OOPSY	PROJ	5.54	3.66	1.51	1.16		14.6%	9.6%	4.9%		.259	1.38	.280	66.0%					4.95
2026	SEA	A+	13.11	3.09	4.25	1.54		32.7%	7.7%	25.0%		.208	1.20	.276	62.5%		74	78		4.03
2026	Steamer	ROS	5.88	4.26	1.38	1.32		14.5%	10.5%	4.0%		.273	1.56	.296	70.6%					5.23
2026	OOPSY	ROS	7.28	3.89	1.87	1.26		18.0%	9.6%	8.4%		.253	1.45	.285	70.7%					4.79