Detail: Riley O'Brien

Team	Cardinals	Position	RP	Depth	1st at CL
Height	6-4	Weight	180	Birthday	1995-02-06	Age	30.6
Bats	R	Throws	R	Roto Transactions
Roto Status	Free Agent	Pro Status	Active

Statistics

Year	Team	G	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025	Cardinals	37	43.33	179	30	2	41	20	1	6	10	3	5	1.154	2.08	.255	3.54	4.32
2024	Cardinals	8	8.00	46	12	2	11	8	0	1	10	0	0	2.500	11.25	.417	6.97	4.88
2022	Mariners	1	1.00	5	1	0	1	1	0	0	0	0	0	2.000	0.00	.333	4.10	5.40
2021	Reds	1	1.33	9	2	2	2	3	0	0	2	0	0	3.750	13.50	.000	26.35	6.73
Total MLB		47	53.67	239	45	6	55	32	1	7	22	3	5	1.435	3.69	.281	4.63	4.54
2025	Spring	3	3.00	0	3	0	6	2	0	0	0	0	0	1.667	0.00	n.a.	1.10	n.a.

2025 Projections
Source		G	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
Consensus		29	34.78	152	31	4	35	17	0	3	16	2	0	1.399	4.10	.294	4.19	4.18
FangraphsDepth		51	51.00	223	46	6	51	25	0	4	23	3	0	1.392	4.06	.292	4.34	4.22
RV Current		27	42.84	185	38	5	42	19	1	3	19	2	11	1.327	4.00	.288	4.05	4.05
RotoValue		7	2.64	12	2	0	3	1	0	0	1	0	0	1.396	4.52	.288	4.37	3.99
Steamer		51	51.00	219	46	5	51	24	1	3	21	3	0	1.359	3.75	.297	3.85	3.98
ZiPS		29	50.70	226	46	6	51	27	0	5	25	3	0	1.440	4.44	.292	4.52	4.39
modZiPS		29	50.70	226	46	6	51	27	0	5	25	3	0	1.440	4.44	.292	4.52	4.39

2025 Game Log

September		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-09-16	v Cin	RP	1.00	3	0	0	1	0	0	0	0	0	1	0.000	0.00	.000	1.10	1.40
2025-09-14	@ Mil	RP	1.00	4	0	0	2	1	0	0	0	0	1	1.000	0.00	.000	2.10	2.40
2025-09-13	@ Mil	RP	0.00	4	2	0	0	0	0	2	3	0	0	Inf	Inf	1.000	Inf	11.40
2025-09-10	@ Sea	RP	2.00	10	2	0	2	2	1	0	0	0	0	2.000	0.00	.333	2.60	4.07
2025-09-07	v SF	RP	1.00	3	1	0	0	0	0	0	0	0	1	1.000	0.00	.333	3.10	5.40
2025-09-06	v SF	RP	1.00	3	0	0	1	0	0	0	0	1	0	0.000	0.00	.000	1.10	1.40
Total			6.00	27	5	0	6	3	1	2	3	1	3	1.333	4.50	.312	3.10	4.48
August		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-08-28	v Pit	RP	1.00	4	0	0	0	0	0	1	0	0	0	0.000	0.00	.000	6.10	8.40
2025-08-25	v Pit	RP	1.67	6	1	0	1	0	0	1	1	1	0	0.600	5.40	.250	3.70	5.40
2025-08-19	@ Mia	RP	1.00	5	0	0	2	2	0	0	0	0	1	2.000	0.00	.000	5.10	5.40
2025-08-17	v NYY	RP	1.67	6	1	0	2	0	0	0	0	0	0	0.600	0.00	.250	0.70	1.40
2025-08-13	v Col	RP	1.00	5	2	0	0	0	0	0	0	0	0	2.000	0.00	.400	3.10	5.40
2025-08-10	v ChC	RP	0.67	3	0	0	1	1	0	0	0	0	0	1.500	0.00	.000	4.60	5.40
2025-08-08	v ChC	RP	1.00	3	0	0	0	0	0	0	0	0	0	0.000	0.00	.000	3.10	5.40
2025-08-06	@ LAD	RP	1.33	5	0	0	0	1	0	0	0	0	1	0.750	0.00	.000	5.35	7.80
2025-08-04	@ LAD	RP	1.00	4	1	0	0	0	0	0	1	1	0	1.000	9.00	.250	3.10	5.40
Total			10.33	41	5	0	6	4	0	2	2	2	2	0.871	1.74	.172	3.68	5.40
July		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-07-30	v Mia	RP	1.33	4	0	0	1	0	0	0	0	0	0	0.000	0.00	.000	1.60	2.40
2025-07-26	v SD	RP	1.00	3	0	0	1	0	0	0	0	0	0	0.000	0.00	.000	1.10	1.40
2025-07-24	v SD	RP	0.33	3	1	0	1	1	0	0	0	0	0	6.000	0.00	1.000	6.10	5.40
2025-07-22	@ Col	RP	1.00	7	1	0	1	2	0	0	0	0	0	3.000	0.00	.250	7.10	7.11
2025-07-20	@ Ari	RP	1.00	3	0	0	2	0	0	0	0	0	0	0.000	0.00	.000	-0.90	-2.60
2025-07-13	v Atl	RP	1.67	7	1	0	2	1	0	0	0	0	0	1.200	0.00	.250	2.50	3.69
2025-07-11	v Atl	RP	2.00	9	2	0	4	1	0	0	0	0	0	1.500	0.00	.500	0.60	1.40
2025-07-06	@ ChC	RP	2.00	9	2	0	3	0	0	1	0	0	0	1.000	0.00	.400	1.60	2.73
2025-07-02	@ Pit	RP	0.67	5	2	0	1	1	0	0	1	0	0	4.500	13.50	.667	4.60	5.40
Total			11.00	50	9	0	16	6	0	1	1	0	0	1.364	0.82	.333	2.10	3.24
June		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-06-29	@ Cle	RP	1.00	5	0	0	3	2	0	0	0	0	0	2.000	0.00	.000	3.10	3.00
2025-06-26	v ChC	RP	1.00	4	0	0	1	1	0	0	0	0	0	1.000	0.00	.000	4.10	5.40
2025-06-23	v ChC	RP	1.00	4	1	0	0	0	0	0	0	0	0	1.000	0.00	.250	3.10	5.40
2025-06-20	v Cin	RP	0.67	3	0	0	2	1	0	0	0	0	0	1.500	0.00	.000	1.60	1.40
2025-06-19	@ CHW	RP	1.00	3	0	0	1	0	0	0	0	0	0	0.000	0.00	.000	1.10	1.40
2025-06-17	@ CHW	RP	2.00	6	1	0	1	0	0	0	0	0	0	0.500	0.00	.200	2.10	3.40
2025-06-13	@ Mil	RP	1.00	3	0	0	1	0	0	0	0	0	0	0.000	0.00	.000	1.10	1.40
2025-06-11	v Tor	RP	2.00	7	2	0	1	1	0	0	0	0	0	1.500	0.00	.400	3.60	5.40
2025-06-09	v Tor	RP	2.00	7	3	1	0	0	0	0	1	0	0	1.500	4.50	.333	9.60	5.40
2025-06-05	v KC	RP	1.67	6	1	0	1	0	0	0	0	0	0	0.600	0.00	.200	1.90	3.40
Total			13.33	48	8	1	11	5	0	0	1	0	0	0.975	0.68	.226	3.55	3.90
May		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-05-01	@ Cin	RP	1.67	8	1	1	2	1	0	1	3	0	0	1.200	16.20	.000	12.10	5.40
Total			1.67	8	1	1	2	1	0	1	3	0	0	1.200	16.20	.000	12.10	5.40
April		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-04-28	@ Cin	RP	0.67	4	2	0	0	1	0	0	0	0	0	4.500	0.00	.667	7.60	8.40
2025-04-26	v Mil	RP	0.33	1	0	0	0	0	0	0	0	0	0	0.000	0.00	.000	3.10	5.40
Total			1.00	5	2	0	0	1	0	0	0	0	0	3.000	0.00	.500	6.10	7.80
Preseason		Pos	IP	BF	H	HR	K	BB	IBB	HB	ER	Win	Sav	WHIP	ERA	BABIP	FIP	kwERA
2025-03-14	@ NYM	RP	1.00	0	1	0	1	1	0	0	0	0	0	2.000	0.00	n.a.	4.10	n.a.
2025-02-26	@ NYY	RP	1.00	0	2	0	2	0	0	0	0	0	0	2.000	0.00	n.a.	-0.90	n.a.
2025-02-22	@ Mia	RP	1.00	0	0	0	3	1	0	0	0	0	0	1.000	0.00	n.a.	0.10	n.a.
Total			3.00	0	3	0	6	2	0	0	0	0	0	1.667	0.00	n.a.	1.10	n.a.

Recent News

Date	Time	Headline
Wed Sep 17	00:18	Riley O'Brien Notches Fifth Save Of Season Tuesday
Thu Sep 4	14:51	Riley O'Brien Could Return This Weekend
Mon Sep 1	21:34	Riley O'Brien Cleared to Play Catch
Sun Aug 31	22:00	Riley O'Brien Could Land on 15-Day Injured List
Wed Aug 6	23:53	Riley O'Brien Records Four Outs for First Career Save
Wed Sep 29 2021	05:32	Riley O'Brien Lasts Just 1 1/3 Innings In Debut

2025 Games by Position

RP	37
37	consecutive relief appearances

Copyright © 2025 by Almaviva Software LLC. All rights reserved.
Fangraphs Depth Charts projections are a combination of ZiPS and Steamer projections with playing time allocated by Fangraphs staff.
MLB Depth charts are computed by RotoValue.
Steamer projections courtesy of Jared Cross, Dash Davidson, and Peter Rosenbloom.
ZiPS projections courtesty of Dan Szymborski of Baseball Think Factory and ESPN.
Player news and notes copyright © 2025 RotoBaller.
Fielding Independent Pitching or FIP, was developed by Tom Tango based on DIPS work by Voros McCracken.
Strike Zone ERA, or kwERA, was developed by Tom Tango, with inspiration from GuyM.
ZiPS projections courtesty of Dan Szymborski of Baseball Think Factory and ESPN. modZiPS applies RotoValue's save estimation model to ZiPS projections.

Weighted On Base Average, or wOBA, was developed by Tom Tango. RotoValue uses Version 2, but ignoring reached base on error before 2015.

Detail: Riley O'Brien

Statistics

2025 Game Log

Recent News

Wed 17-Sep-2025 20:07:02