Where should I draft Riley O'Brien in 2027?

Riley O'Brien is 282nd on our 2027 board for 5x5 roto leagues, about round 24 in a 12-team draft, and 373rd in standard points leagues.

Is Riley O'Brien a keeper for 2027?

He is worth a round 24 pick in a 12-team league, so he is a value to keep at any cost later than that round.

What positions is Riley O'Brien eligible at?

By 2026 games (20 at a position, or 5 starts or 8 relief outings for pitchers) he qualifies at RP. Leagues set their own thresholds.

What team does Riley O'Brien play for?

Riley O'Brien is listed with the St. Louis Cardinals, in the bullpen on the depth chart.

Riley O'Brien fantasy outlook 2027

Riley O'Brien ranks 282nd overall in our 2027 fantasy baseball rankings, 47th among relief pitchers, and 373rd in points leagues. The 2027 projection is 17 SV, 3.82 ERA, 1.29 WHIP, 60 K in 62 IP. In 2026 he posted a 4.08 ERA and 64 strikeouts over 64 innings across 66 appearances. He plays next season at 32.

RPSt. Louis Cardinalsin the bullpenAge 32 next seasonBats R, throws R

Overall (5x5)

#282

of 1184

Relief pitcher

#47

of 409

Points leagues

#373

197 proj. pts

Dynasty

#282

Keeper value

Round 24

12-team draft

Pitching: projection and recent seasons

Riley O'Brien pitching lines
Season	G	IP	W	SV	HLD	K	K%	BB%	ERA	WHIP
2027 projection	60	61.2	3	17	1	60	22.4%	10.2%	3.82	1.29
2026	66	64.0	3	38	1	64	23.2%	10.5%	4.08	1.28
2025	42	48.0	3	6	6	45	22.6%	11.1%	2.06	1.15

2026 splits

What hitters did against him, by the hand they bat with and where he pitched.

Riley O'Brien 2026 splits
Split	PA	AVG	OBP	SLG	HR	K
vs left-handed hitters	150	.244	.369	.350	3	29
vs right-handed hitters	126	.209	.298	.318	2	35
Home	151	.233	.318	.308	2	31
Away	125	.220	.361	.370	3	33

2026 Statcast and advanced numbers

xBA against

.255

xSLG against

.404

xwOBA against

.337

FIP

3.94

ERA

4.08

64.00 IP

WAR

0.3

Expected stats come from Statcast as MLB's Stats API publishes them: what the quality of contact was worth, before defense and luck.

Ranked around Riley O'Brien

Daulton Varsho
OFHOU
#279
Josh Bell
1BMIN
#280
Hunter Gaddis
RPCLE
#281
Rico Garcia
RPBAL
#283
Devin Williams
RPNYM
#284
Cole Young
2BSEA
#285

Best fantasy teammates

St. Louis Cardinals depth chart

Iván Herrera
CSTL
#46
Jordan Walker
OFSTL
#49
Alec Burleson
1BSTL
#73
Kyle Leahy
SPSTL
#160
JJ Wetherholt
2BSTL
#222
Michael McGreevy
SPSTL
#289

Common questions

Where should I draft Riley O'Brien in 2027?
Riley O'Brien is 282nd on our 2027 board for 5x5 roto leagues, about round 24 in a 12-team draft, and 373rd in standard points leagues.
Is Riley O'Brien a keeper for 2027?
He is worth a round 24 pick in a 12-team league, so he is a value to keep at any cost later than that round.
What positions is Riley O'Brien eligible at?
By 2026 games (20 at a position, or 5 starts or 8 relief outings for pitchers) he qualifies at RP. Leagues set their own thresholds.
What team does Riley O'Brien play for?
Riley O'Brien is listed with the St. Louis Cardinals, in the bullpen on the depth chart.

More: 2027 relief pitcher rankings, dynasty rankings and keeper values. He is the 282nd pick on our board.

By the Parlae deskPlayer data updated Oct 14, 2026 at 7:53 AM ETHow this is built Report a wrong number