Riley O'Brien

Relief Pitcher · St. Louis Cardinals · #61 · 6′4″, 181 lb · Born Feb 6, 1995, Seattle, WA · College of Idaho

pitching

5 seasons · 2021–2026

Season	Team	GP	GS	W	L	W%	WAR	ERA	WHIP	IP	K	BB	K/BB	H	R	ER	SV	HLD	BLSV
2026	STL	66	0	3	9	.250	0.0	4.08	1.28	64.0	64	29	2.2	53	35	29	38	1	8
2025	STL	42	0	3	1	.750	1.5	2.06	1.15	48.0	45	22	2.0	33	13	11	6	6	3
2024	STL	8	0	0	0	.000	-0.4	11.25	2.63	8.0	11	8	1.4	13	10	10	0	0	1
2022	SEA	1	0	0	0	.000	0.0	0.00	2.00	1.0	1	1	1.0	1	0	0	0	0	0
2021	CIN	1	1	0	1	.000	-0.1	13.50	3.75	1.1	2	3	0.7	2	2	2	0	0	0
Career		118	1	6	11	.353	--	3.83	1.35	122.1	123	63	2.0	102	60	52	44	7	12

Opponent Batting

5 seasons · 2021–2026

Season	Team	P	TBF	P-TBF	OBA	OOBP	OSLUG	OOPS	2B	3B	HR	TB	RBI	BH	SH	SF	IBB
2026	STL	1064	276	3.855	.227	.337	.335	.672	10	0	5	78	40	10	3	1	4
2025	STL	758	199	3.809	.196	.313	.274	.587	5	1	2	46	13	7	1	1	2
2024	STL	194	46	4.217	.361	.478	.639	1.117	2	1	2	23	11	1	0	1	0
2022	SEA	23	5	4.600	.250	.400	.250	.650	0	0	0	1	0	0	0	0	0
2021	CIN	42	9	4.667	.333	.556	1.333	1.889	0	0	2	8	2	0	0	0	0
Career		2081	535	3.890	.228	.345	.349	.694	17	2	11	156	66	18	4	3	6

Expanded Pitching

5 seasons · 2021–2026

Season	Team	P/S	P/I	K/9	QS	CG	SHO	GSC	GB	FB	G/F	IR	IRS	WP	BK	SB	CS	RSUP
2026	STL	0.0	16.6	9.0	0	0	0	0.0	82	91	0.9	12	7	7	0	4	0	0.0
2025	STL	0.0	15.8	8.4	0	0	0	0.0	69	56	1.2	10	3	3	0	2	1	0.0
2024	STL	0.0	24.3	12.4	0	0	0	0.0	10	16	0.6	3	2	1	0	0	0	0.0
2022	SEA	0.0	23.0	9.0	0	0	0	0.0	3	0	0.0	0	0	0	0	0	0	0.0
2021	CIN	42.0	31.5	13.5	0	0	0	41.0	2	2	1.0	0	0	0	0	0	0	1.0
Career		42.0	17.0	9.0	0	0	0	0.0	166	165	1.0	25	12	11	0	6	1	1.0

Teams

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