Riley O'Brien Stats, Game Log, Team, Position

Riley O'Brien | St. Louis Cardinals

MLB Player

Riley O'Brien

St. Louis Cardinals#61 · Relief PitcherActive

Height6' 4"Weight180 lbsAge31Experience5th Season

38SVTied-3rd

4.08ERA

64KTied-243rd

1.28WHIP

Player Information

PositionRelief Pitcher

Jersey#61

Date of Birth6/2/1995

BirthplaceSeattle, WA

CollegeCollege of Idaho

Experience5th Season

Draft2017: Rd 8, Pk 229 (TB)

Bats / ThrowsRight/Right

MLB Debut2021

StatusActive

Next Game

@ Pittsburgh Pirates

September 23, 2026 · 6:40 PM

PNC Park

MLB.TV

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More St. Louis Cardinals Players

Season, Postseason & Career

Split	GP	GS	CG	SHO	IP	H	R	ER	HR	BB	K
Regular Season	66	0	0	0	64.0	53	35	29	5	29	64
Career	118	1	0	0	122.1	102	60	52	11	63	123

Pitching by Season

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

Opponent Batting by Season

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

Expanded Pitching by Season

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

Game Log

Game	Result	IP	H	R	ER	HR	BB	K	GB	FB	P	TBF	Dec	Rel	ERA
vs WSH2026 Regular Season	W 5-3	1.0	0	0	0	0	0	0	1	2	6	3	-	SV(38)	4.08
vs WSH2026 Regular Season	L 8-5 F/11	1.0	1	1	0	0	0	2	0	1	12	4	-	-	4.14
vs SF2026 Regular Season	L 6-5 F/10	1.0	2	2	1	1	1	0	1	3	16	5	L(3-9)	-	4.21
vs SF2026 Regular Season	W 2-1	1.0	1	0	0	0	1	2	1	1	19	5	-	SV(37)	4.13
vs CHW2026 Regular Season	L 6-5	1.0	1	2	2	1	1	2	1	1	21	5	L(3-8)	BLSV(8)	4.20
vs CHW2026 Regular Season	W 7-3	1.0	0	0	0	0	0	1	1	1	11	3	-	-	3.97
@ SF2026 Regular Season	L 5-4 F/11	1.0	1	1	0	0	2	0	2	1	11	5	-	BLSV(7)	4.03
@ COL2026 Regular Season	W 7-6	1.0	1	0	0	0	0	2	1	1	12	4	-	SV(36)	4.11
@ LAD2026 Regular Season	L 3-2	0.1	2	2	2	0	1	0	0	3	17	4	L(3-7)	BLSV(6)	4.18
@ LAD2026 Regular Season	W 8-6 F/10	1.0	0	1	0	0	0	1	1	1	17	3	-	SV(35)	3.88
vs BAL2026 Regular Season	W 7-5	1.0	1	0	0	0	0	1	1	2	11	4	-	SV(34)	3.95
vs BAL2026 Regular Season	L 8-7	1.0	2	1	1	0	0	0	2	3	17	5	L(3-6)	-	4.02
@ PHI2026 Regular Season	L 6-4	0.2	5	6	6	1	1	0	2	5	39	8	L(3-5)	-	3.93
@ CIN2026 Regular Season	W 10-9	0.1	1	0	0	0	2	0	0	2	15	4	-	SV(33)	2.94
@ CIN2026 Regular Season	W 3-0	1.0	0	0	0	0	0	1	0	2	13	3	-	SV(32)	2.96
@ CIN2026 Regular Season	W 2-1	1.0	0	0	0	0	0	3	0	0	14	3	-	SV(31)	3.02
@ CHC2026 Regular Season	W 8-4	1.0	0	0	0	0	0	0	2	1	14	3	-	-	3.08
vs PHI2026 Regular Season	W 2-0	1.0	0	0	0	0	0	1	1	1	8	3	-	SV(30)	3.14
vs COL2026 Regular Season	W 7-4	1.0	0	0	0	0	0	0	1	2	8	3	-	SV(29)	3.21
vs COL2026 Regular Season	W 3-2	1.0	0	0	0	0	1	0	2	0	14	3	-	SV(28)	3.28
@ NYY2026 Regular Season	W 3-1	1.0	0	0	0	0	1	1	1	1	22	4	-	SV(27)	3.35
@ TOR2026 Regular Season	W 5-1	1.0	1	0	0	0	0	1	1	2	18	4	-	-	3.43
vs CHC2026 Regular Season	L 4-2 F/10	1.0	0	0	0	0	0	1	0	2	17	3	-	-	3.50
vs CHC2026 Regular Season	W 3-2 F/10	1.0	0	0	0	0	1	1	0	2	18	5	-	-	3.59
@ LAA2026 Regular Season	W 1-0	1.0	0	0	0	0	2	3	0	0	26	5	-	SV(26)	3.67
@ LAA2026 Regular Season	L 3-2	0.1	2	2	2	0	1	1	1	1	21	6	L(3-4)	BLSV(5)	3.76
@ ARI2026 Regular Season	W 5-4	1.0	1	0	0	0	1	1	0	2	16	4	-	SV(25)	3.35
vs AL2026 Regular Season	L 4-0	1.0	1	0	0	0	0	1	1	1	13	5	-	-	0.00
vs ATL2026 Regular Season	W 4-1	1.0	0	0	0	0	1	1	0	2	18	5	-	SV(24)	3.43
vs ATL2026 Regular Season	W 2-1	1.0	0	0	0	0	0	2	0	1	12	3	-	SV(23)	3.52
vs MIL2026 Regular SeasonWeek 27	W 5-1	1.0	1	0	0	0	0	1	2	1	15	4	-	-	3.62
@ CHC2026 Regular SeasonWeek 27	W 3-0	1.0	0	0	0	0	1	1	1	0	13	3	-	SV(22)	3.72
@ ATL2026 Regular SeasonWeek 26	W 5-3	1.0	1	0	0	0	0	0	3	1	9	4	-	SV(21)	3.82
vs MIA2026 Regular SeasonWeek 26	W 2-1	1.0	0	0	0	0	0	1	1	1	15	3	-	SV(20)	3.93
vs ARI2026 Regular SeasonWeek 25	W 3-2	1.0	0	0	0	0	0	0	1	2	17	3	-	SV(19)	4.05
@ KC2026 Regular SeasonWeek 25	W 12-10	1.0	2	2	2	1	0	1	3	2	12	7	-	-	4.18
vs SD2026 Regular SeasonWeek 24	W 3-2	1.0	0	0	0	0	1	0	2	1	13	4	-	SV(18)	3.73
@ MIN2026 Regular SeasonWeek 24	W 9-6	1.0	0	1	1	0	3	1	1	1	31	6	-	-	3.86
vs CIN2026 Regular SeasonWeek 23	W 5-3	1.0	1	0	0	0	0	1	0	3	15	4	-	SV(17)	3.68
vs CIN2026 Regular SeasonWeek 23	W 6-5	1.0	2	0	0	0	1	1	3	1	23	6	-	SV(16)	3.81
vs TEX2026 Regular SeasonWeek 22	W 5-3	1.0	0	0	0	0	1	0	1	2	13	4	-	SV(15)	3.95
vs TEX2026 Regular SeasonWeek 22	L 7-4	1.0	3	3	3	0	1	2	0	4	32	7	L(3-3)	-	4.10
vs CHC2026 Regular SeasonWeek 22	W 6-5	1.0	1	1	1	0	0	0	2	2	14	4	-	SV(14)	3.20
@ CIN2026 Regular SeasonWeek 21	L 7-6 F/11	1.1	0	1	0	0	1	2	3	0	20	6	L(3-2)	-	2.96
vs PIT2026 Regular SeasonWeek 20	W 9-6 F/10	1.0	2	2	2	0	1	0	1	3	22	7	-	BLSV(4)	3.13
vs KC2026 Regular SeasonWeek 20	W 5-4 F/11	1.0	1	0	0	0	0	0	2	1	10	3	-	-	2.45
@ ATH2026 Regular SeasonWeek 20	W 5-4	1.0	0	0	0	0	0	2	0	1	16	4	-	SV(13)	2.57
@ ATH2026 Regular SeasonWeek 19	W 6-4	1.0	0	0	0	0	1	0	2	0	13	3	-	SV(12)	2.70
@ SD2026 Regular SeasonWeek 19	L 3-2 F/10	1.0	2	2	2	1	0	3	0	2	31	5	-	BLSV(3)	2.84
@ SD2026 Regular SeasonWeek 19	W 2-1	1.0	0	0	0	0	0	1	2	0	10	3	-	SV(11)	2.00
vs MIL2026 Regular SeasonWeek 18	W 6-3	0.2	0	0	0	0	0	0	1	1	3	2	-	SV(10)	2.12
vs LAD2026 Regular SeasonWeek 18	W 3-2	1.0	4	2	2	0	0	2	3	2	26	7	-	SV(9)	2.20
@ PIT2026 Regular SeasonWeek 17	W 5-4	1.0	1	0	0	0	0	1	1	2	11	4	-	SV(8)	1.17
vs SEA2026 Regular SeasonWeek 17	L 11-9	1.0	4	2	2	0	1	1	3	3	39	9	L(3-1)	BLSV(2)	1.26
@ MIA2026 Regular SeasonWeek 16	W 5-3	1.0	1	0	0	0	0	1	2	1	17	4	-	SV(7)	0.00
@ HOU2026 Regular SeasonWeek 16	W 7-5 F/10	1.1	1	0	0	0	0	2	0	2	19	4	W(3-0)	BLSV(1)	0.00
@ HOU2026 Regular SeasonWeek 16	W 7-5	0.2	0	0	0	0	0	1	1	0	7	2	-	SV(6)	0.00
vs CLE2026 Regular SeasonWeek 15	W 5-3	1.0	0	0	0	0	0	2	1	0	15	3	-	SV(5)	0.00
vs CLE2026 Regular SeasonWeek 15	W 6-5 F/10	1.0	0	0	0	0	0	1	1	1	15	3	W(2-0)	-	0.00
vs BOS2026 Regular SeasonWeek 15	W 3-2	1.0	0	0	0	0	0	1	2	0	8	3	-	SV(4)	0.00
@ WSH2026 Regular SeasonWeek 14	W 6-1	1.0	0	0	0	0	0	0	3	0	15	3	-	-	0.00
@ WSH2026 Regular SeasonWeek 14	W 7-6 F/10	1.0	0	1	0	0	0	2	1	0	16	4	-	SV(3)	0.00
@ DET2026 Regular SeasonWeek 14	W 5-3	1.0	0	0	0	0	0	1	1	1	13	3	-	SV(2)	0.00
vs NYM2026 Regular SeasonWeek 13	W 2-1 F/11	1.0	1	0	0	0	0	2	1	1	16	4	-	-	0.00
vs NYM2026 Regular SeasonWeek 13	W 3-0	1.0	0	0	0	0	0	0	2	1	11	3	-	SV(1)	0.00
vs TB2026 Regular SeasonWeek 13	W 6-5 F/10	1.0	2	0	0	0	0	0	3	1	9	4	-	HLD(1)	0.00
vs TB2026 Regular SeasonWeek 13	W 9-7	1.1	1	0	0	0	0	2	2	1	17	5	W(1-0)	-	0.00