Isaac Mattson is 3-3 with an ERA of 2.31 and 45 strikeouts in 43 appearances in his last season.

		NAME	SEASON	TM	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1		Isaac Mattson I. Mattson	2025	PIT	43	3	3	.500	0	2.31	45	0	0	0	46.2	33	12	13	4	19	2	12	2	193	0	8.68	3.66	2.37	0.77	23.3	9.8	1.11	.236	2.51	54	3.67	89	6.36	2.4

Games

	NAME	DATE	SEASON	TM		OPP	DEC	GS	ERA	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP
1	Isaac Mattson I. Mattson	9/24/2025	2025	PIT	@	CIN		0	13.50	0	0	0	0	0.2	1	1	1	1	1	0	0	0	4	0
2	Isaac Mattson I. Mattson	9/23/2025	2025	PIT	@	CIN		0	0.00	0	0	0	0	1.0	1	0	0	0	0	0	0	0	3	0
3	Isaac Mattson I. Mattson	9/19/2025	2025	PIT	vs	ATH		0	0.00	0	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0
4	Isaac Mattson I. Mattson	9/14/2025	2025	PIT	@	WSH	L	0	0.00	1	0	0	0	2.0	1	0	1	0	1	0	1	0	8	0
5	Isaac Mattson I. Mattson	9/10/2025	2025	PIT	@	BAL		0	9.00	0	0	0	0	1.0	3	1	1	0	0	0	0	0	6	0
6	Isaac Mattson I. Mattson	9/9/2025	2025	PIT	@	BAL		0	0.00	1	0	0	0	1.0	0	0	0	0	2	0	0	1	5	0
7	Isaac Mattson I. Mattson	9/7/2025	2025	PIT	vs	MIL		0	0.00	1	0	0	0	1.0	0	0	0	0	2	0	0	0	5	0
8	Isaac Mattson I. Mattson	9/3/2025	2025	PIT	vs	LAD		0	0.00	1	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0
9	Isaac Mattson I. Mattson	9/2/2025	2025	PIT	vs	LAD		0	18.00	0	0	0	0	1.0	3	2	2	0	0	0	0	0	6	0
10	Isaac Mattson I. Mattson	8/29/2025	2025	PIT	@	BOS		0	0.00	1	0	0	0	1.0	1	0	0	0	0	0	0	0	4	0
11	Isaac Mattson I. Mattson	8/27/2025	2025	PIT	@	STL		0	0.00	1	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0
12	Isaac Mattson I. Mattson	8/26/2025	2025	PIT	@	STL		0	0.00	1	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0
13	Isaac Mattson I. Mattson	8/24/2025	2025	PIT	vs	COL		0	0.00	1	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0
14	Isaac Mattson I. Mattson	8/20/2025	2025	PIT	vs	TOR		0	0.00	1	0	0	0	1.0	0	0	0	0	0	1	0	0	4	0
15	Isaac Mattson I. Mattson	8/17/2025	2025	PIT	@	CHC	L	0	9.00	0	0	0	0	1.0	2	1	1	0	1	0	1	1	6	0
16	Isaac Mattson I. Mattson	8/15/2025	2025	PIT	@	CHC		0	0.00	1	0	0	0	1.2	2	0	0	0	1	0	0	0	8	0
17	Isaac Mattson I. Mattson	8/13/2025	2025	PIT	@	MIL		0	0.00	1	0	0	0	1.0	0	0	0	0	0	0	1	0	3	0
18	Isaac Mattson I. Mattson	8/10/2025	2025	PIT	vs	CIN		0	0.00	1	0	0	0	0.2	0	0	0	0	1	0	1	0	3	0
19	Isaac Mattson I. Mattson	8/9/2025	2025	PIT	vs	CIN		0	0.00	2	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0
20	Isaac Mattson I. Mattson	8/6/2025	2025	PIT	vs	SFG		0	27.00	0	0	0	0	0.1	2	1	1	0	1	0	0	0	4	0
21	Isaac Mattson I. Mattson	8/3/2025	2025	PIT	@	COL		0	0.00	1	0	0	0	1.0	0	0	0	0	1	0	0	0	5	0
22	Isaac Mattson I. Mattson	7/30/2025	2025	PIT	@	SFG	W	0	0.00	3	0	0	0	2.0	2	0	0	0	0	0	1	0	8	0
23	Isaac Mattson I. Mattson	7/28/2025	2025	PIT	@	SFG		0	0.00	2	0	0	0	1.0	0	0	0	0	0	0	0	0	3	0
24	Isaac Mattson I. Mattson	7/25/2025	2025	PIT	vs	AZ		0	0.00	1	0	0	0	1.0	2	0	0	0	0	0	0	0	5	0
25	Isaac Mattson I. Mattson	7/22/2025	2025	PIT	vs	DET		0	0.00	2	0	0	0	1.0	1	0	0	0	0	0	0	0	4	0
	Total							0	2.31	45	0	0	0	46.2	33	12	13	4	19	2	12	2	193	0