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Isaac Mattson

P · PIT

30 yrs

Pitcher

Description

Position: P
Team: PIT
Type: Pitcher
Bats: Right
Throws: Right
Born: 1995-07-14
Age: 30
Country: USA
Height: 6'2"
Weight: 214 lb
Last active: 2026

Career Résumé

4 seasons

Seasons	4 2021–2026
Games	74
W-L	3-3
ERA	3.29
WHIP	1.29
IP	79
SO	72
SV	0

Pitching Projections

2026 · per ~700 BF

Stat	Proj	Range (p10–p90)	vs LY
SO	161	129–182	+3
BB	64	48–85	-2
HR	17	10–25	0
Hits	142	115–167	+7
ER	66	55–94	+3

Pitching

Regular season

Season	Tm	W	L	ERA	WHIP	G	IP	SO	BB	HR	ER	xERA	Brl%
2026	PIT	0	0	4.09	1.45	23	22.0	18	12	1	10	6.07	11.4%
2025	PIT	3	3	2.45	1.13	44	47.2	45	19	4	13	3.28	6.1%
2024	PIT	0	0	5.06	1.13	3	5.1	6	5	0	3	5.48	9.1%
2021	BAL	0	0	6.23	2.31	4	4.1	3	5	0	3	7.21	13.3%

Season	Pos	G	Inn	PO	A	E	FLD%	RF/9	OAA
2026	P	22	21.0	2	1	0	1.000	1.29	—
2025	P	44	47.2	2	7	1	.900	1.70	—
2024	P	3	5.1	0	1	0	1.000	1.69	—
2021	P	4	4.1	0	0	0	—	0.00	—

Batting game log

2026 · last 1

Date		Opp	Res	AB	R	H	2B	3B	HR	RBI	BB	SO	SB
2026-06-27	vs	CIN	L	0	0	0	0	0	0	0	0	0	0

Pitching game log

2026 · last 26

Date		Opp	Res	Dec	IP	H	R	ER	HR	BB	SO	Pit
2026-06-27	vs	CIN	L	ND	1.0	0	0	0	0	0	2	13
2026-06-26	vs	CIN	L	ND	1.0	0	0	0	0	0	1	12
2026-06-23	vs	SEA	L	ND	1.0	0	0	0	0	0	1	13
2026-06-17	@	ATH	W	ND	1.0	1	1	1	1	0	2	16
2026-06-14	vs	MIA	L	ND	1.1	0	0	0	0	2	1	27
2026-05-17	vs	PHI	L	ND	1.0	1	0	0	0	0	0	15
2026-05-16	vs	PHI	L	ND	1.1	0	0	0	0	1	2	25
2026-05-10	@	SF	L	BS	0.1	3	2	2	0	0	0	18
2026-05-07	@	AZ	W	H	0.1	0	0	0	0	0	1	6
2026-04-30	vs	STL	L	ND	0.2	3	5	5	0	2	0	31
2026-04-27	vs	STL	L	H	0.1	0	0	0	0	0	1	3
2026-04-25	@	MIL	W	BS	1.0	0	0	0	0	0	0	4
2026-04-24	@	MIL	W	ND	1.0	0	0	0	0	1	1	14
2026-04-19	vs	TB	W	H	1.0	0	0	0	0	0	1	8
2026-04-18	vs	TB	L	ND	1.0	0	0	0	0	0	0	13
2026-04-16	vs	WSH	L	ND	1.0	0	0	0	0	1	0	18
2026-04-14	vs	WSH	L	ND	2.0	2	0	0	0	0	1	33
2026-04-11	@	CHC	W	H	1.0	2	0	0	0	0	1	24
2026-04-10	@	CHC	W	H	1.0	0	0	0	0	1	0	12
2026-04-07	vs	SD	W	H	0.2	1	0	0	0	0	0	9
2026-04-06	vs	SD	L	ND	1.0	2	0	0	0	0	2	21
2026-04-04	vs	BAL	W	ND	1.0	1	0	0	0	1	1	17
2026-04-01	@	CIN	W	H	1.1	1	0	0	0	0	0	22
2026-03-30	@	CIN	L	ND	1.0	0	0	0	0	1	1	15
2026-03-29	@	NYM	W	ND	1.0	0	0	0	0	0	2	13
2026-03-26	@	NYM	L	ND	0.2	3	2	2	0	2	1	36

Pitching Profile2026 · vs 168

K/9

7.432

BB/9

4.94

HR/9

0.496

ERA

4.0947

WHIP

1.4518

xERA

6.074

Brl%A

11.4%8

PlayerMedian (50th)percentile vs league

Career Highs

Stat	Best	Year
Wins	3	2025
SO	45	2025
SV	0	2026
ERA	2.45	2025
WHIP	1.13	2025

Comparable Players

2025 · stat-profile similarity

Tony SantillanCIN29y
2.44 ERA · 75 K · 1.11 WHIP
95%
vs
Nic EnrightCLE29y
2.03 ERA · 30 K · 1.16 WHIP
95%
vs
Danny CoulombeTEX36y
2.30 ERA · 43 K · 1.16 WHIP
95%
vs
Anthony BenderMIA31y
2.16 ERA · 42 K · 1.06 WHIP
90%
vs
Jimmy HergetCOL32y
2.48 ERA · 81 K · 1.18 WHIP
90%
vs

Career Arc

ERA by season · taller = better

Year over Year

pitching trajectory

Yr	Tm	W	ERA	WHIP	SO	IP
21	BAL	0	6.23	2.31	3	4
24	PIT	0	5.06▼	1.13▼	6▲	5▲
25	PIT	3▲	2.45▼	1.13	45▲	48▲
26	PIT	0▼	4.09▲	1.45▲	18▼	22▼

Career Milestones

chase to the next mark

Wins3

47 to 50

Strikeouts72

928 to 1,000

Season

Pitch Arsenal

2025 · Statcast

Pitch	Use	Velo	Spin
4-Seam	79%	93.9	2372
Changeup	12%	85.9	1720
Slider	9%	85.3	2084
Curve	1%	79.0	2269

Plate Discipline

2025 · induced

29.2%

Chase

lg 28.5%

69.4%

Z-Swing

lg 67%

19.9%

Whiff

lg 24.5%

80.1%

Contact

lg 76%

53.6%

Zone

lg 48.5%

25.7%

CSW

lg 28%

786 pitches · green/red vs league avg

Statcast Trend

xERA by season · taller = better

Barrel% Against by season · taller = better

Per game	2.3
Ceiling (90th)	5.8
Floor (10th)	-1.3
Std dev	3.8
Boom rate	46%
Bust rate	15%
Profile	Volatile