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Matt Brash

Seattle Mariners · RP Throws: R Bats: R Height: 6'1 Weight: 173 Born: May 12, 1998 (27)

Percentile Ranks
vs LHH
vs RHH K%
96.0
46.5 xWOBA
0.256 · 96%
0.262 · 100%
xSLG
100.0
100.0

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		18	0	0-0	16.1	0.00	0.99	26.5%	0.0%	8.8%	.204	.251	.259	.047	0.0%	23.8%	29%	62%	26%	10%	47%	11%	53%	50%	0.0	2.9	3.9	0.0	0.0	0.0
2023		78	0	9-4	70.2	3.06	1.34	34.7%	0.0%	9.4%	.210	.305	.280	.095	4.8%	31.3%	34%	46%	20%	30%	46%	24%	54%	64%	3.9	3.4	3.8	4.5	4.3	4.1
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%	7.4	-1.3	0.0	4.2	4.7	3.8

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	Jun, 30	KC	1.0	3	11	0	0	0	0	1	1	45.5												n/a	4.25	n/a	6
2	2025	Jun, 28	@TEX	1.0	4	20	0	0	0	1	1	3	30.0												n/a	3.65	n/a	6
3	2025	Jun, 27	@TEX	1.0	4	15	1	0	0	0	2	3	33.3												n/a	5.65	n/a	9
4	2025	Jun, 24	@MIN	1.0	3	13	0	0	0	0	1	1	46.2												n/a	4.25	n/a	6
5	2025	Jun, 20	@CHC	1.0	4	14	0	0	0	1	0	0	14.3												n/a	1.65	n/a	3
6	2025	Jun, 13	CLE	1.0	4	17	1	0	0	0	0	1	17.6	29.4%	96.1	17.6%	83.9	35.3%	85.8	5.9%	89.3	11.8%	95.7		n/a	1.65	n/a	3
7	2025	Jun, 11	@ARI	1.0	4	20	1	0	0	0	1	0	10.0	20.0%	97.5	20.0%	85.9	45.0%	86.7	15.0%	89.5				n/a	3.65	n/a	6
8	2025	Jun, 08	@LAA	1.0	3	14	0	0	0	0	2	5	42.9	7.1%	96.2	28.6%	85.9	64.3%	86.5						n/a	6.25	n/a	9
9	2025	Jun, 04	BAL	1.0	3	15	0	0	0	0	0	0	20.0	26.7%	97.0	33.3%	85.2	13.3%	86.3	20.0%	89.7	6.7%	95.8		n/a	2.25	n/a	3
10	2025	Jun, 01	MIN	1.0	5	20	1	0	0	0	2	1	25.0	25.0%	97.0	10.0%	84.2	60.0%	87.2	5.0%	90.3				n/a	5.65	n/a	9
11	2025	May, 30	MIN	0.1	1	6	0	0	0	0	0	0	16.7	16.7%	96.8			66.7%	86.3			16.7%	96.6		n/a	0.75	n/a	1
12	2025	May, 29	WSH	1.0	5	17	3	0	0	0	2	3	35.3	11.8%	96.3	29.4%	85.5	29.4%	85.9	29.4%	90.2				n/a	4.45	n/a	9
13	2025	May, 25	@HOU	0.1	2	10	0	0	0	1	0	1	20.0	20.0%	96.0	10.0%	84.3	70.0%	87.1						n/a	0.15	n/a	1
14	2025	May, 23	@HOU	1.0	4	21	0	0	0	1	0	2	19.0	28.6%	96.2	9.5%	84.3	57.1%	86.3	4.8%	88.7				n/a	1.65	n/a	3
15	2025	May, 17	@SD	1.0	3	10	0	0	0	0	1	1	50.0	20.0%	95.0	40.0%	83.5	30.0%	85.5	10.0%	87.2				n/a	4.25	n/a	6
16	2025	May, 13	NYY	1.0	4	20	1	0	0	0	2	4	45.0	15.0%	95.9	15.0%	85.0	55.0%	86.3	15.0%	89.9				n/a	5.65	n/a	9
17	2025	May, 10	TOR	1.0	4	18	0	0	0	1	2	0	33.3	38.9%	95.7	33.3%	84.6	16.7%	85.4	11.1%	89.5				n/a	5.65	n/a	9
18	2025	May, 06	@ATH	0.2	5	17	1	0	0	1	0	1	23.5	29.4%	96.3	47.1%	84.9	11.8%	86.7	11.8%	89.4				n/a	0.30	n/a	2
19	2025	May, 03	@TEX	1.0	3	14	1	0	0	0	1	1	7.1	57.1%	95.2	21.4%	83.6	14.3%	84.1			7.1%	93.7		n/a	3.65	n/a	6

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
20	2023	Sep, 28	HOU	0.2	5	16	3	0	1	0	1	4	37.5												n/a	-0.30	n/a	2
21	2023	Sep, 26	HOU	2.0	7	25	1	0	0	0	2	3	40.0												n/a	7.90	n/a	12
22	2023	Sep, 23	@TEX	1.1	4	17	1	0	0	0	1	2	35.3												n/a	4.40	n/a	7
23	2023	Sep, 19	@OAK	1.0	5	21	1	0	0	1	1	3	38.1												n/a	3.05	n/a	6
24	2023	Sep, 16	LAD	1.1	4	16	0	0	0	0	1	4	37.5												n/a	5.00	n/a	7
25	2023	Sep, 15	LAD	0.1	2	8	1	0	0	0	0	1	37.5												n/a	0.15	n/a	1
26	2023	Sep, 13	LAA	1.0	5	29	1	0	0	1	3	5	31.0												n/a	7.05	n/a	12
27	2023	Sep, 11	LAA	1.0	3	12	0	0	0	0	1	3	41.7												n/a	4.25	n/a	6
28	2023	Sep, 07	@TB	1.0	3	14	0	0	0	0	1	2	35.7												n/a	4.25	n/a	6
29	2023	Sep, 06	@CIN	0.2	3	12	1	0	0	0	1	2	25.0												n/a	2.90	n/a	5
30	2023	Sep, 05	@CIN	1.0	4	15	0	0	0	1	1	1	20.0												n/a	3.65	n/a	6
31	2023	Sep, 02	@NYM	1.1	5	24	0	0	0	1	2	5	37.5												n/a	6.40	n/a	10
32	2023	Aug, 30	OAK	1.0	4	15	0	0	0	1	2	6	46.7												n/a	5.65	n/a	9
33	2023	Aug, 29	OAK	1.0	4	18	1	0	0	0	1	4	44.4												n/a	3.65	n/a	6
34	2023	Aug, 25	KC	0.2	5	28	3	1	2	0	0	1	17.9												n/a	-4.30	n/a	-4
35	2023	Aug, 20	@HOU	1.1	5	23	1	0	0	0	2	3	26.1												n/a	10.40	n/a	16
36	2023	Aug, 17	@KC	1.0	3	8	0	0	0	0	1	3	37.5												n/a	4.25	n/a	6
37	2023	Aug, 16	@KC	1.0	4	13	1	1	1	0	1	2	38.5												n/a	1.65	n/a	3
38	2023	Aug, 14	@KC	0.1	4	20	3	0	2	0	0	2	20.0												n/a	-5.05	n/a	-5
39	2023	Aug, 13	BAL	1.0	4	20	0	0	0	1	2	2	30.0												n/a	5.65	n/a	9

2022

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
40	2022	Oct, 15	202	1.2	5	19	0	0	0	0	3	8	52.6												n/a	9.75	n/a	14
41	2022	Oct, 11	202	0.2	2	12	0	0	0	0	0	1	25.0												n/a	1.50	n/a	2
42	2022	Oct, 08	202	1.0	3	15	0	0	0	0	1	5	40.0												n/a	4.25	n/a	6
43	2022	Oct, 04	DET	1.0	3	11	0	0	0	0	0	3	36.4												n/a	2.25	n/a	3
44	2022	Oct, 03	DET	1.0	5	23	1	0	0	1	0	3	17.4												n/a	1.05	n/a	3
45	2022	Sep, 30	OAK	1.0	3	8	0	0	0	0	2	3	75.0												n/a	10.25	n/a	15
46	2022	Sep, 29	TEX	0.2	2	9	0	0	0	0	2	4	55.6												n/a	5.50	n/a	8
47	2022	Sep, 25	@KC	0.0	4	16	2	0	4	2	0	0	18.8												n/a	-10.40	n/a	-12
48	2022	Sep, 24	@KC	1.0	3	9	0	0	0	0	1	3	55.6												n/a	4.25	n/a	6
49	2022	Sep, 22	@OAK	0.2	4	19	1	0	0	1	1	1	15.8												n/a	2.30	n/a	5
50	2022	Sep, 21	@OAK	0.1	1	6	0	0	0	0	1	1	33.3												n/a	2.75	n/a	4
51	2022	Sep, 20	@OAK	0.1	1	6	0	0	0	0	1	1	33.3												n/a	2.75	n/a	4
52	2022	Sep, 17	@LAA	1.0	4	20	0	0	0	0	2	4	45.0												n/a	6.25	n/a	9
53	2022	Sep, 14	SD	0.1	2	10	0	0	0	1	1	3	40.0												n/a	2.15	n/a	4
54	2022	Sep, 13	SD	1.1	6	18	1	0	0	0	2	3	38.9												n/a	6.40	n/a	10
55	2022	Sep, 11	ATL	1.0	4	23	0	0	0	1	3	4	34.8												n/a	7.65	n/a	12
56	2022	Sep, 11	ATL	1.0	4	23	0	0	0	1	3	4	34.8												n/a	7.65	n/a	12
57	2022	Sep, 06	CWS	1.0	4	20	1	0	0	1	1	2	30.0												n/a	3.05	n/a	6
58	2022	Sep, 04	@CLE	1.0	3	15	0	0	0	1	1	1	20.0												n/a	3.65	n/a	6
59	2022	Sep, 03	@CLE	1.0	5	22	1	0	0	1	0	0	27.3												n/a	1.05	n/a	3

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%	6%	.062	.056	0.0	0.0	.071	.000	0	1%	.310	.279	0.0	0.0	.331	.000	0
Slider	Breaking	86.7 MPH	2958	33%	55%	.311	.378	16.7	8.3	.389	.000	0	94%	.057	.194	44.4	22.2	.058	.000	0
Changeup	Offspeed	90.0 MPH	1697	33%	39%	.206	.204	37.5	0.0	.262	.000	0	5%	.000	.000	0.0	0.0	.000	.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	MPH		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	40	.235	.256	.300	.000	30.0%	2.5%	0	28	.149	.262	.164	.000	21.4%	17.9%	0
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	29	.256	.287	31.0%	3.4%	.336	.000	0	39	.159	.236	23.1%	12.8%	.177	.000	0
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	3.45	4.52	2.62	5.05	4.29	0.77	6.40	0.00	8.10	3.93	2.55
Home	3.95	3.79	0.00	0.00	2.42	4.25	7.65	0.00	4.58	3.59	4.25