Detail: Isaac Mattson

Team	Pirates	Position	RP	Depth	2nd at RP
Height	6-2	Weight	215	Birthday	1995-07-14	Age	30.1
Bats	R	Throws	R	Roto Transactions
Roto Status	Free Agent	Pro Status	Active

Statistics

Year	Team	G	AB	H	2B	3B	HR	RBOE	RBI	SB	CS	K	BB	IBB	HBP	SF	SH	Avg	OBP	Slg	BABIP	wOBA	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025	Pirates	22																					25.33	101	17	3	30	8	0	1	6	3	0	0.987	2.13	.237	3.34	2.90
2024	Pirates	3																					5.33	23	1	0	6	5	0	1	3	0	0	1.125	5.06	.091	4.22	5.40
2021	Orioles	4																					4.33	23	5	0	3	5	0	0	3	0	0	2.308	6.23	.333	5.18	6.44
Total MLB		29																					35.00	147	23	3	39	18	0	2	12	3	0	1.171	3.09	.235	3.70	3.85
2025	Spring	3	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	.000	.000	.000	.000	.000	4.00	0	2	1	4	2	0	0	2	1	0	1.000	4.50	n.a.	5.85	n.a.

2025 Projections
Source		G	AB	H	2B	3B	HR	RBOE	RBI	SB	CS	K	BB	IBB	HBP	SF	SH	Avg	OBP	Slg	BABIP	wOBA	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
Consensus		15																					24.06	106	22	3	23	13	0	2	12	1	0	1.449	4.52	.291	4.56	4.41
RV Current		24																					47.78	202	42	6	49	19	1	3	21	4	0	1.279	3.87	.288	3.90	3.75
RotoValue		12																					13.48	55	11	2	13	6	0	1	6	1	1	1.270	3.83	.288	4.14	3.90
Steamer		1																					1.00	4	1	0	1	1	0	0	1	0	0	1.477	4.62	.292	4.60	4.37
ZiPS		33																					57.70	258	53	7	56	33	0	4	30	3	0	1.490	4.68	.291	4.66	4.52
modZiPS		33																					57.70	258	53	7	56	33	0	4	30	3	0	1.490	4.68	.291	4.66	4.52

2025 Game Log

July		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-07-30	@ SF	RP	2.00	8	2	0	3	0	0	0	0	1	0	1.000	0.00	.400	0.10	0.90
2025-07-28	@ SF	RP	1.00	3	0	0	2	0	0	0	0	0	0	0.000	0.00	.000	-0.90	-2.60
2025-07-25	v Ari	RP	1.00	5	2	0	1	0	0	0	0	0	0	2.000	0.00	.500	1.10	3.00
2025-07-22	v Det	RP	1.00	4	1	0	2	0	0	0	0	0	0	1.000	0.00	.500	-0.90	-0.60
2025-07-19	v CHW	RP	0.33	5	2	0	1	1	0	1	2	0	0	9.000	54.00	1.000	15.10	7.80
2025-07-18	v CHW	RP	1.00	3	0	0	0	0	0	0	0	0	0	0.000	0.00	.000	3.10	5.40
2025-07-09	@ KC	RP	1.00	6	2	1	1	1	0	0	1	0	0	3.000	9.00	.333	17.10	5.40
2025-07-08	@ KC	RP	0.00	1	1	0	0	0	0	0	0	0	0	Inf	0.00	1.000	3.10	5.40
2025-07-05	@ Sea	RP	1.33	4	0	0	3	0	0	0	0	0	0	0.000	0.00	.000	-1.40	-3.60
2025-07-02	v StL	RP	1.00	5	1	0	1	1	0	0	0	0	0	2.000	0.00	.333	4.10	5.40
2025-07-01	v StL	RP	1.00	5	0	0	0	2	0	0	0	1	0	2.000	0.00	.000	9.10	10.20
Total			10.67	49	11	1	14	5	0	1	3	2	0	1.500	2.53	.357	3.38	3.44
June		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-06-27	v NYM	RP	1.33	5	1	0	3	0	0	0	0	0	0	0.750	0.00	.500	-1.40	-1.80
2025-06-23	@ Mil	RP	1.67	6	1	0	3	0	0	0	0	0	0	0.600	0.00	.333	-0.50	-0.60
2025-06-20	v Tex	RP	1.33	5	1	0	1	1	0	0	0	0	0	1.500	0.00	.333	3.85	5.40
2025-06-19	@ Det	RP	0.67	4	2	1	0	0	0	0	2	0	0	3.000	27.00	.333	22.60	5.40
2025-06-15	@ ChC	RP	2.00	6	0	0	0	0	0	0	0	0	0	0.000	0.00	.000	3.10	5.40
2025-06-12	@ ChC	RP	1.67	6	0	0	1	1	0	0	0	0	0	0.600	0.00	.000	3.70	5.40
2025-06-10	v Mia	RP	2.00	6	0	0	3	0	0	0	0	0	0	0.000	0.00	.000	0.10	-0.60
2025-06-07	v Phi	RP	1.00	3	0	0	1	0	0	0	0	1	0	0.000	0.00	.000	1.10	1.40
Total			11.67	41	5	1	12	2	0	0	2	1	0	0.600	1.54	.154	2.67	2.47
May		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-05-25	v Mil	RP	1.33	5	0	0	1	1	0	0	0	0	0	0.750	0.00	.000	3.85	5.40
2025-05-23	v Mil	RP	0.67	2	0	0	1	0	0	0	0	0	0	0.000	0.00	.000	0.10	-0.60
2025-05-22	v Mil	RP	1.00	4	1	1	2	0	0	0	1	0	0	1.000	9.00	.000	12.10	-0.60
Total			3.00	11	1	1	4	1	0	0	1	0	0	0.667	3.00	.000	5.77	2.13
Preseason		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-03-16	@ NYY	RP	2.00	0	0	0	4	1	0	0	0	1	0	0.500	0.00	n.a.	0.60	n.a.
2025-03-10	v Bal	RP	1.00	0	2	1	0	0	0	0	2	0	0	2.000	18.00	n.a.	16.10	n.a.
2025-03-06	@ Bal	RP	1.00	0	0	0	0	1	0	0	0	0	0	1.000	0.00	n.a.	6.10	n.a.
Total			4.00	0	2	1	4	2	0	0	2	1	0	1.000	4.50	n.a.	5.85	n.a.

2025 Games by Position

RP	22
22	consecutive relief appearances

Copyright © 2025 by Almaviva Software LLC. All rights reserved.
Fangraphs Depth Charts projections are a combination of ZiPS and Steamer projections with playing time allocated by Fangraphs staff.
MLB Depth charts are computed by RotoValue.
Steamer projections courtesy of Jared Cross, Dash Davidson, and Peter Rosenbloom.
ZiPS projections courtesty of Dan Szymborski of Baseball Think Factory and ESPN.
Fielding Independent Pitching or FIP, was developed by Tom Tango based on DIPS work by Voros McCracken.
Strike Zone ERA, or kwERA, was developed by Tom Tango, with inspiration from GuyM.
ZiPS projections courtesty of Dan Szymborski of Baseball Think Factory and ESPN. modZiPS applies RotoValue's save estimation model to ZiPS projections.

Weighted On Base Average, or wOBA, was developed by Tom Tango. RotoValue uses Version 2, but ignoring reached base on error before 2015.

Detail: Isaac Mattson

Statistics

2025 Game Log

Fri 1-Aug-2025 19:50:38