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Riley OBrien

St. Louis Cardinals · RP Throws: R Bats: R Height: 6'4 Weight: 180 Born: Feb 06, 1995 (30)

Percentile Ranks
vs LHH
vs RHH K%
100.0
32.4 xWOBA
0.278 · 92%
0.285 · 85%
xSLG
100.0
94.1

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		22	0	0-0	27.0	1.67	1.22	26.1%	0.0%	11.7%	.219	.291	.286	.072	3.0%	25.4%	33%	54%	22%	16%	47%	13%	53%	47%	0.2	0.6	4.2	5.1	0.0	0.0
2024		8	0	0-0	8.0	11.25	2.63	23.9%	0.0%	17.4%	.286	.440	.388	.154	7.7%	42.3%	42%	39%	23%	31%	44%	20%	56%	44%	0.0	0.0	0.0	0.0	0.0	0.0
2022		1	0	0-0	1.0	0.00	2.00	20.0%	0.0%	20.0%	.125	.131	.232	.006	0.0%	0.0%	67%	100%	0%	0%	57%	20%	44%	0%	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%	Rating	DK $	DK	FD $	FD
1	2025	Jul, 30	MIA	1.1	4	12	0	0	0	0	1	3	41.7		n/a	5.00	n/a	7
2	2025	Jul, 26	SD	1.0	3	15	0	0	0	0	1	1	26.7		n/a	4.25	n/a	6
3	2025	Jul, 24	SD	0.1	3	13	1	0	0	1	1	1	23.1		n/a	1.55	n/a	4
4	2025	Jul, 22	@COL	1.0	7	31	1	0	0	2	1	3	12.9		n/a	2.45	n/a	6
5	2025	Jul, 20	@ARI	1.0	3	17	0	0	0	0	2	3	41.2		n/a	6.25	n/a	9
6	2025	Jul, 13	ATL	1.2	7	27	1	0	0	1	2	1	18.5		n/a	6.55	n/a	11
7	2025	Jul, 11	ATL	2.0	9	38	2	0	0	1	4	5	28.9		n/a	10.70	n/a	18
8	2025	Jul, 06	@CHC	2.0	9	39	2	0	0	0	3	3	30.8		n/a	9.30	n/a	15
9	2025	Jul, 02	@PIT	0.2	5	20	2	0	1	1	1	3	25.0		n/a	-0.30	n/a	2
10	2025	Jun, 29	@CLE	1.0	5	26	0	0	0	2	3	4	34.6		n/a	7.05	n/a	12
11	2025	Jun, 26	CHC	1.0	4	16	0	0	0	1	1	1	18.8		n/a	3.65	n/a	6
12	2025	Jun, 23	CHC	1.0	4	19	1	0	0	0	0	1	21.1		n/a	1.65	n/a	3
13	2025	Jun, 20	CIN	0.2	3	13	0	0	0	1	2	2	38.5		n/a	4.90	n/a	8
14	2025	Jun, 19	@CWS	1.0	3	14	0	0	0	0	1	1	42.9		n/a	4.25	n/a	6
15	2025	Jun, 17	@CWS	2.0	6	25	1	0	0	0	1	1	32.0		n/a	5.90	n/a	9
16	2025	Jun, 13	@MIL	1.0	3	17	0	0	0	0	1	2	29.4		n/a	4.25	n/a	6
17	2025	Jun, 11	TOR	2.0	7	26	2	0	0	1	1	3	26.9		n/a	4.70	n/a	9
18	2025	Jun, 09	TOR	2.0	7	22	3	1	1	0	0	1	18.2		n/a	0.70	n/a	3
19	2025	Jun, 05	KC	1.2	6	25	1	0	0	0	1	3	24.0		n/a	5.15	n/a	8
20	2025	May, 01	@CIN	1.2	8	34	1	1	3	1	2	5	35.3		n/a	0.55	n/a	2

2024

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

2022

Box Score														Pitch Usage/Velo	DFS
#	Date		Opp	IP	BF	PC	H	HR	ER	BB	SO	SwStr	CSW%	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
Slider	Breaking	MPH		27%	100%	.187	.241	43.8	12.5	.216	.071	0	98%	.238	.294	15.4	15.4	.267	.000	0
Changeup	Offspeed	MPH		0%	2%	.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
4-Seamer	Fastball	MPH		0%	11%	.966	.893	0.0	0.0	1.059	1.000	0	4%	.000	.000	100.0	0.0	.000	.000	0
Slider	Breaking	89.8 MPH	2431	32%	89%	.295	.374	25.0	0.0	.591	.625	1	96%	.371	.589	16.7	33.3	1.106	1.000	1

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

Splits	vs LHB								vs RHB
Year	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR	PA	xBAVG	xWOBA	xSLG	ISO	K%	BB%	HR
2025	46	.195	.278	.234	.026	37.0%	13.0%	0	64	.235	.285	.327	.103	18.8%	9.4%	2
2024	20	.326	.442	.505	.400	20.0%	20.0%	1	26	.258	.347	.394	.190	26.9%	15.4%	1
2022	3	.145	.135	.153	.000	33.3%	0.0%	0	2	.077	.383	.080	.000	0.0%	50.0%	0
2021	5	.467	.791	1.865	1.500	20.0%	60.0%	1	4	.250	.000	.502	.400	25.0%	0.3%	1

	Home								Road
Season	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR	PA	xAVG	xWOBA	K%	BB%	xSLG	ISO	HR
2025	47	.221	.265	23.4%	8.5%	.298	.093	1	43	.244	.319	27.9%	11.6%	.324	.083	1
2024	14	.183	.291	14.3%	14.3%	.222	.091	0	32	.332	.431	28.1%	18.8%	.536	.360	2
2022	5	.128	.234	20.0%	20.0%	.135	.000	0				%	%			0

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	2.76	2.79	6.08	6.25	2.69	-7.50	9.30	0.00	3.65	2.10	3.90
Home	3.53	2.96	4.77	0.00	4.45	2.12	5.78	0.00	0.75	3.48	3.92