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Matt Brash

Seattle Mariners · RP Throws: R Bats: R Height: 6'1 Weight: 173 Born: May 12, 1998 ()

Percentile Ranks
vs LHH
vs RHH K%
98.0
86.9 xWOBA
0.257 · 99%
0.324 · 44%
xSLG
99.0
55.9

Year	Team	G	GS	W-L	IP	ERA	WHIP	K%	CSW%	BB%	xAVG	xSLG	xwOBA	xISO	BAR%	SS%	HH%	GB%	LD%	FB%	Z%	Z Sw%	OZ%	OZ Sw%	Apr	May	Jun	Jul	Aug	Sep
2025		53	0	1-3	47.1	2.47	1.25	29.1%	0.0%	9.0%	.233	.351	.292	.118	5.8%	31.4%	31%	56%	25%	17%	44%	16%	56%	52%	0.0	2.9	3.9	2.8	3.6	2.7
2023		78	0	9-4	70.2	3.06	1.34	34.7%	0.0%	9.4%	.209	.304	.280	.095	4.8%	31.3%	34%	46%	20%	30%	46%	24%	54%	64%	0.0	0.0	0.0	0.0	0.0	0.0
2022		39	5	4-4	50.2	4.44	1.57	27.9%	0.0%	14.9%	.247	.354	.328	.108	4.8%	33.6%	39%	52%	24%	17%	48%	19%	52%	56%	0.0	0.0	0.0	0.0	0.0	0.0

2025

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		KC		SL		CH		FF		Rating	DK $	DK	FD $	FD
1	2025	Oct, 17	202	1.0	5	20	1	0	0	1	1	3	30.0												n/a	3.05	n/a	6
2	2025	Oct, 16	202	1.1	4	10	0	0	0	0	0	2	20.0												n/a	3.00	n/a	4
3	2025	Oct, 12	202	1.0	3	8	0	0	0	0	1	1	50.0												n/a	4.25	n/a	6
4	2025	Oct, 10	202	2.0	6	26	0	0	0	0	2	4	30.8												n/a	8.50	n/a	12
5	2025	Oct, 07	202	1.0	3	13	0	0	0	0	0	0	15.4												n/a	2.25	n/a	3
6	2025	Oct, 05	202	1.0	6	31	1	0	1	1	3	4	32.3												n/a	5.05	n/a	9
7	2025	Oct, 04	202	0.2	3	17	0	0	0	1	2	2	35.3												n/a	4.90	n/a	8
8	2025	Sep, 25	COL	1.0	5	16	1	0	0	1	2	4	50.0												n/a	5.05	n/a	9
9	2025	Sep, 19	@HOU	1.0	4	18	1	0	0	0	0	1	22.2												n/a	1.65	n/a	3
10	2025	Sep, 17	@KC	0.2	7	30	4	1	4	1	1	4	30.0												n/a	-7.50	n/a	-7
11	2025	Sep, 13	LAA	1.0	4	19	2	1	1	0	1	2	36.8												n/a	1.05	n/a	3
12	2025	Sep, 11	LAA	1.0	4	23	2	0	0	0	1	3	30.4												n/a	3.05	n/a	6
13	2025	Sep, 09	STL	1.0	4	14	1	0	0	0	3	5	64.3												n/a	7.65	n/a	12
14	2025	Sep, 08	STL	1.0	3	16	0	0	0	0	2	2	37.5												n/a	6.25	n/a	9
15	2025	Sep, 05	@ATL	1.0	3	12	0	0	0	0	1	0	41.7												n/a	4.25	n/a	6
16	2025	Aug, 31	@CLE	1.0	3	10	0	0	0	0	1	1	40.0												n/a	4.25	n/a	6
17	2025	Aug, 29	@CLE	1.0	6	24	1	0	1	2	2	4	33.3												n/a	2.45	n/a	6
18	2025	Aug, 27	SD	1.0	3	11	0	0	0	0	0	3	27.3												n/a	2.25	n/a	3
19	2025	Aug, 25	SD	1.0	6	23	2	0	0	1	3	4	47.8												n/a	6.45	n/a	12
20	2025	Aug, 22	ATH	0.2	3	10	1	0	0	0	1	1	50.0												n/a	2.90	n/a	5

2023

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		KC		SL		CH		FF		Rating	DK $	DK	FD $	FD

2022

Box Score														Pitch Usage/Velo										DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	SI		KC		CH		SL		FF		Rating	DK $	DK	FD $	FD

2025 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
4-Seamer	Fastball	MPH		0%	8%	.306	.372	20.0	20.0	.367	.000	0	5%	.103	.333	40.0	40.0	.110	.000	0
Slider	Breaking	86.0 MPH	2951	36%	66%	.201	.235	34.0	6.0	.238	.023	0	92%	.190	.256	32.1	7.5	.327	.063	1
Changeup	Offspeed	90.0 MPH	1723	44%	26%	.172	.173	44.4	0.0	.229	.056	0	3%	.058	.052	0.0	0.0	.059	.000	0

2024 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR

2023 Splits				vs LHB									vs RHB
Pitch	Type	MPH	SPIN	Whiff%	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR	Usage	xBAVG	xWOBA	K%	BB%	xSLG	ISO	HR
4-Seamer	Fastball	97.5 MPH	2306	26%	35%	.303	.405	14.0	22.0	.450	.154	1	33%	.239	.351	32.7	15.4	.352	.119	1
Cutter	Fastball	92.1 MPH	2670	27%	3%	.000	.593	0.0	0.0	.539	.495	0	5%	.269	.338	40.0	20.0	.293	.000	0
Sinker	Fastball	98.5 MPH	2205	26%	1%	1.000	.970	0.0	1.0	2.000	1.000	0	4%	.143	.201	25.0	0.0	.143	.200	0
Curveball	Breaking	85.8 MPH	2983	28%	12%	.250	.250	31.8	0.0	.300	.357	0	5%	.500	.441	25.0	0.0	.500	.667	0
Slider	Breaking	88.8 MPH	2825	49%	48%	.212	.288	33.8	4.6	.376	.103	1	53%	.122	.154	50.5	5.2	.161	.033	0
Changeup	Offspeed	MPH		0%	0%	.000	.000	0.0	0.0	.000	.000	0

Splits	vs LHB								vs RHB
Year	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR
2025	95	.229	.257	.294	.069	31.6%	5.3%	1	102	.236	.324	.407	.138	27.5%	10.8%	3
2023	142	.263	.341	.402	.116	25.4%	10.6%	2	166	.166	.228	.225	.054	42.8%	8.4%	1
2022	94	.251	.340	.349	.078	26.6%	17.0%	1	127	.244	.318	.358	.083	29.1%	12.6%	2

	Home								Road
Season	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR
2025	102	.252	.298	32.4%	5.9%	.375	.065	1	95	.211	.284	26.3%	10.5%	.323	.146	3
2023	166	.214	.286	33.7%	10.2%	.317	.104	2	142	.205	.273	35.9%	8.5%	.290	.056	1
2022	99	.204	.301	26.3%	16.2%	.301	.074	1	122	.280	.349	29.5%	13.1%	.396	.086	2

Split	Games	Wind 0-9 mph+	Wind 10+ mph	Humid 0-25	Humid 25-50	Humid 50-75	Humid 75-100	Temp 0-40	Temp 40-60	Temp 61-79	Temp 80+
Road	3.10	3.55	2.34	5.05	3.81	0.46	3.19	0.00	5.23	3.13	2.74
Home	3.93	3.88	0.00	0.00	3.21	4.06	6.35	0.00	4.81	3.49	4.46