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RILEY O'BRIEN
#61 - P
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88342
Status On roster
Ht/Wt 6’4’’, 180 lbs
Bats/Throws R / R
Experience 2 years
Debut Sep 28, 2021
Born Feb 6, 1995 (31 yrs) Shoreline, Washington
Drafted Drafted by Tampa Bay in 2017 (8/229).
Drafted from Col of Idaho
Acquired Acquired in a trade with Seattle in 2023.
VS.
Riley O'Brien
Leader
STAT RANK
3 8
Wins Aaron Ashby
61 1
27 88
Strikeouts Jacob Misiorowski
172 1
13 17
Saves Cade Smith
4 1
24.1 72.1
Innings pitched Cristopher Sanchez
191 1
1 17
Holds Erik Sabrowski
169 1
24 26
Games Braydon Fisher, Mason Fluharty, Brent Headrick, Hogan Harris
19 1
3 5
Wins Kyle Leahy, Andre Pallante
3 1
27 43
Strikeouts Matthew Liberatore, Andre Pallante
7 1
13 13
Saves Riley O'Brien
1 1
24.1 56.1
Innings pitched Michael McGreevy
9 1
1 15
Holds JoJo Romero
6 1
24 25
Games Justin Bruihl
2 1
1 15
Holds JoJo Romero
86 1
24 25
Games Tyler Kinley, Brock Burke, Dylan Lee, Matt Gage, Justin Bruihl, Graham Ashcraft, Connor Phillips
8 1
24.1 72.1
Innings pitched Cristopher Sanchez
98 1
3 8
Wins Aaron Ashby
35 1
27 88
Strikeouts Jacob Misiorowski
82 1
13 16
Saves Mason Miller
2 1
Season Stats
Pitcher
W
Wins
 L
Losses
 ERA
Earned Run Average
 G
Games
 GS
Games Started
 CG
Complete Games
 SHO
Shutouts
 SV
Saves
 HLD
Holds
 IP
Innings Pitched
 H
Hits Allowed
 R
Runs Allowed
 ER
Earned Runs
 HR
Home Runs Allowed
 BB
Walks
 SO
Strikeouts
 WHIP
Walks and Hits Per Inning Pitched
YTD 3 2 2.96 24 0 0 0 13 1 24.1 20 10 8 1 4 27 0.99
Game Log
Pitcher
Date Team Opp GS
Games Started
Dec CG
Complete Games
SHO
Shutouts
IP
Innings Pitched
H
stats.by_season.headers.baseball.pitching.regular-season.tooltipss.h
R
stats.by_season.headers.baseball.pitching.regular-season.tooltipss.r
ER
Earned Runs
HR
Home Runs Allowed
BB
Walks
K YTD W YTD L YTD SV YTD ERA YTD WHIP Status
2026-05-23 0 L 0 0 1.1 0 1 0 0 1 2 3 2 13 2.96 0.99 -
2026-05-23 - - - - - - - - - - - 3 1 13 3.13 - DNP
2026-05-21 - - - - - - - - - - - 3 1 13 3.13 - DNP
2026-05-20 - - - - - - - - - - - 3 1 13 3.13 - DNP
2026-05-19 0 BSv 0 0 1.0 2 2 2 0 1 0 3 1 13 3.13 1 -
Transactions & Injuries
Date Description
2025-09-06 Missed 5 games (Shoulder soreness - right).
2025-08-31 Shoulder soreness - right, day-to-day.
2025-06-09 Recalled from Memphis (AAA).
2025-06-06 Optioned to Memphis (AAA).
2025-06-05 Recalled from Memphis (AAA).
News
Rotowire
Sat, Apr 25, 2026 at 7:21 PM

O'Brien (3-1) blew the save and took the loss Saturday as the Cardinals fell 11-9 to the Mariners, giving up two runs on four hits and a walk in an inning of work. He struck out one and also hit a batter with a pitch.

Wed, Apr 22, 2026 at 9:49 AM

O'Brien gave up a hit and struck out one in a scoreless ninth inning Tuesday to record his seventh save of the season in a 5-3 win over the Marlins.