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Riley O'Brien Stats, Game Log & Splits — 2026 — NeeksPeeks

Riley O'Brien

Riley O'Brien

St. Louis Cardinals#61 · Two-way player · Bats R, Throws R · 6' 4" · 180 lb · USA · Debut 2021

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2026 pitching

3-9 W-L4.08 ERA64 SO1.28 WHIP

MLB career (pitching): 6-11 · 3.83 ERA · 123 SO · 1.35 WHIP

2026 batting

.000 AVG0 HR0 RBI.000 OPS

MLB career (batting): 116 G · .000 AVG · 0 HR · 0 RBI · .000 OPS

Game log — pitching

2026

Riley O'Brien recent game log
Date		Opp	Dec	IP	H	R	ER	BB	SO
Sep 20	vs	WSH	SV	1.0	0	0	0	0	0
Sep 19	vs	WSH	—	1.0	1	1	0	0	2
Sep 16	vs	SF	L	1.0	2	2	1	1	0
Sep 14	vs	SF	SV	1.0	1	0	0	1	2
Sep 12	vs	CWS	L	1.0	1	2	2	1	2
Sep 11	vs	CWS	—	1.0	0	0	0	0	1
Sep 7	@	SF	—	1.0	1	1	0	2	0
Sep 4	@	COL	SV	1.0	1	0	0	0	2
Sep 3	@	LAD	L	0.1	2	2	2	1	0
Sep 2	@	LAD	SV	1.0	0	1	0	0	1
Aug 27	vs	BAL	SV	1.0	1	0	0	0	1
Aug 26	vs	BAL	L	1.0	2	1	1	0	0
Aug 23	@	PHI	L	0.2	5	6	6	1	0
Aug 20	@	CIN	SV	0.1	1	0	0	2	0
Aug 18	@	CIN	SV	1.0	0	0	0	0	1
Aug 17	@	CIN	SV	1.0	0	0	0	0	3
Aug 15	@	CHC	—	1.0	0	0	0	0	0
Aug 11	vs	PHI	SV	1.0	0	0	0	0	1
Aug 9	vs	COL	SV	1.0	0	0	0	0	0
Aug 7	vs	COL	SV	1.0	0	0	0	1	0
Aug 5	@	NYY	SV	1.0	0	0	0	1	1
Aug 2	@	TOR	—	1.0	1	0	0	0	1
Jul 30	vs	CHC	—	1.0	0	0	0	0	1
Jul 29	vs	CHC	—	1.0	0	0	0	1	1
Jul 22	@	LAA	SV	1.0	0	0	0	2	3
Jul 20	@	LAA	L	0.1	2	2	2	1	1
Jul 17	@	ARI	SV	1.0	1	0	0	1	1
Jul 11	vs	ATL	SV	1.0	0	0	0	1	1
Jul 10	vs	ATL	SV	1.0	0	0	0	0	2
Jul 8	vs	MIL	—	1.0	1	0	0	0	1
Jul 4	@	CHC	SV	1.0	0	0	0	1	1
Jun 30	@	ATL	SV	1.0	1	0	0	0	0
Jun 28	vs	MIA	SV	1.0	0	0	0	0	1
Jun 22	vs	ARI	SV	1.0	0	0	0	0	0
Jun 21	@	KC	—	1.0	2	2	2	0	1
Jun 16	vs	SD	SV	1.0	0	0	0	1	0
Jun 13	@	MIN	—	1.0	0	1	1	3	1
Jun 7	vs	CIN	SV	1.0	1	0	0	0	1
Jun 6	vs	CIN	SV	1.0	2	0	0	1	1
Jun 3	vs	TEX	SV	1.0	0	0	0	1	0
Jun 2	vs	TEX	L	1.0	3	3	3	1	2
May 29	vs	CHC	SV	1.0	1	1	1	0	0
May 23	@	CIN	L	1.1	0	1	0	1	2
May 19	vs	PIT	—	1.0	2	2	2	1	0
May 15	vs	KC	—	1.0	1	0	0	0	0
May 14	@	ATH	SV	1.0	0	0	0	0	2
May 12	@	ATH	SV	1.0	0	0	0	1	0
May 10	@	SD	—	1.0	2	2	2	0	3
May 7	@	SD	SV	1.0	0	0	0	0	1
May 4	vs	MIL	SV	0.2	0	0	0	0	0
May 2	vs	LAD	SV	1.0	4	2	2	0	2
Apr 29	@	PIT	SV	1.0	1	0	0	0	1
Apr 25	vs	SEA	L	1.0	4	2	2	1	1
Apr 21	@	MIA	SV	1.0	1	0	0	0	1
Apr 19	@	HOU	W	1.1	1	0	0	0	2
Apr 18	@	HOU	SV	0.2	0	0	0	0	1
Apr 15	vs	CLE	SV	1.0	0	0	0	0	2
Apr 14	vs	CLE	W	1.0	0	0	0	0	1
Apr 10	vs	BOS	SV	1.0	0	0	0	0	1
Apr 8	@	WSH	—	1.0	0	0	0	0	0
Apr 7	@	WSH	SV	1.0	0	1	0	0	2
Apr 5	@	DET	SV	1.0	0	0	0	0	1
Apr 1	vs	NYM	—	1.0	1	0	0	0	2
Mar 31	vs	NYM	SV	1.0	0	0	0	0	0
Mar 28	vs	TB	HLD	1.0	2	0	0	0	0
Mar 26	vs	TB	W	1.1	1	0	0	0	2

Pitching — season by season

Riley O'Brien pitching, season by season
Season	Team	W	L	ERA	G	GS	SV	IP	H	ER	BB	SO	WHIP
2026	STL	3	9	4.08	66	0	38	64.0	53	29	29	64	1.28
2025	STL	3	1	2.06	42	0	6	48.0	33	11	22	45	1.15
2024	STL	0	0	11.25	8	0	0	8.0	13	10	8	11	2.63
2022	SEA	0	0	0.00	1	0	0	1.0	1	0	1	1	2.00
2021	CIN	0	1	13.50	1	1	0	1.1	2	2	3	2	3.75

Batting — season by season

Riley O'Brien batting, season by season
Season	Team	G	AB	R	H	HR	RBI	BB	SO	SB	AVG	OBP	SLG	OPS
2026	STL	66	0	0	0	0	0	0	0	0	.000	.000	.000	.000

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