Isaac Mattson

Relief Pitcher · Seattle Mariners · #72 · 6′2″, 214 lb · Born Jul 14, 1995, Erie, PA

pitching

4 seasons · 2021–2026

Season	Team	GP	GS	W	L	W%	WAR	ERA	WHIP	IP	K	BB	K/BB	H	R	ER	SV	HLD	BLSV
2026	PIT	38	0	0	0	.000	0.0	5.35	1.60	38.2	36	18	2.0	44	23	23	0	8	2
2025	PIT	44	0	3	3	.500	1.5	2.45	1.13	47.2	45	19	2.4	35	14	13	0	12	3
2024	PIT	3	0	0	0	.000	0.0	5.06	1.13	5.1	6	5	1.2	1	3	3	0	0	0
2021	BAL	4	0	0	0	.000	0.0	6.23	2.31	4.1	3	5	0.6	5	3	3	0	0	0
Career		89	0	3	3	.500	--	3.94	1.38	96.0	90	47	1.9	85	43	42	0	20	5

Opponent Batting

4 seasons · 2021–2026

Season	Team	P	TBF	P-TBF	OBA	OOBP	OSLUG	OOPS	2B	3B	HR	TB	RBI	BH	SH	SF	IBB
2026	PIT	728	176	4.136	.282	.358	.436	.794	15	0	3	68	28	1	0	1	0
2025	PIT	777	198	3.924	.203	.286	.314	.600	7	0	4	54	18	2	2	3	2
2024	PIT	100	23	4.348	.059	.304	.059	.363	0	0	0	1	2	1	0	0	0
2021	BAL	91	23	3.957	.278	.435	.333	.768	1	0	0	6	3	0	0	0	0
Career		1696	420	4.038	.234	.325	.355	.681	23	0	7	129	51	4	2	4	2

Expanded Pitching

4 seasons · 2021–2026

Season	Team	P/S	P/I	K/9	QS	CG	SHO	GSC	GB	FB	G/F	IR	IRS	WP	BK	SB	CS	RSUP
2026	PIT	0.0	18.8	8.4	0	0	0	0.0	33	88	0.4	16	8	1	0	0	1	0.0
2025	PIT	0.0	16.3	8.5	0	0	0	0.0	38	94	0.4	18	6	0	0	0	0	0.0
2024	PIT	0.0	18.8	10.1	0	0	0	0.0	6	5	1.2	0	0	0	0	0	0	0.0
2021	BAL	0.0	21.0	6.2	0	0	0	0.0	5	10	0.5	3	1	1	0	0	0	0.0
Career		0.0	17.7	8.4	0	0	0	0.0	82	197	0.4	37	15	2	0	0	1	0.0

Teams

3