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Riley O'Brien: Everything you need to know

Riley O’Brien

Riley O'Brien

#61 RP
St. Louis Cardinals

STATS

Riley O’Brien

Riley O’Brien Game Log   2026

  • Regular Season
     
    Date
    Opp
    Result
    IP
    K
    BB
    HBP
    CG
    SHO
    H
    R
    ER
    6/22
    AZ
    W 3-2
    1.0
    0
    0
    0
    0
    0
    0
    0
    0
    6/16
    SD
    W 3-2
    1.0
    0
    1
    0
    0
    0
    0
    0
    0
    6/7
    CIN
    W 5-3
    1.0
    1
    0
    0
    0
    0
    1
    0
    0
    6/6
    CIN
    W 6-5
    1.0
    1
    1
    0
    0
    0
    2
    0
    0
    6/3
    TEX
    W 5-3
    1.0
    0
    1
    0
    0
    0
    0
    0
    0
    6/2
    TEX
    L 7-4
    1.0
    2
    1
    0
    0
    0
    3
    3
    3
    5/29
    CHC
    W 6-5
    1.0
    0
    0
    0
    0
    0
    1
    1
    1
    5/23
    CIN
    L 7-6
    1.1
    2
    1
    0
    0
    0
    0
    1
    0
    5/19
    PIT
    W 9-6
    1.0
    0
    1
    2
    0
    0
    2
    2
    2
    5/15
    KC
    W 5-4
    1.0
    0
    0
    0
    0
    0
    1
    0
    0
    5/14
    ATH
    W 5-4
    1.0
    2
    0
    1
    0
    0
    0
    0
    0
    5/12
    ATH
    W 6-4
    1.0
    0
    1
    0
    0
    0
    0
    0
    0
    5/10
    SD
    L 3-2
    1.0
    3
    0
    0
    0
    0
    2
    2
    2
    5/4
    MIL
    W 6-3
    0.2
    0
    0
    0
    0
    0
    0
    0
    0
    5/2
    LAD
    W 3-2
    1.0
    2
    0
    0
    0
    0
    4
    2
    2
    4/29
    PIT
    W 5-4
    1.0
    1
    0
    0
    0
    0
    1
    0
    0
    4/25
    SEA
    L 11-9
    1.0
    1
    1
    1
    0
    0
    4
    2
    2
    4/21
    MIA
    W 5-3
    1.0
    1
    0
    0
    0
    0
    1
    0
    0
    4/19
    HOU
    W 7-5
    1.1
    2
    0
    0
    0
    0
    1
    0
    0
    4/18
    HOU
    W 7-5
    0.2
    1
    0
    0
    0
    0
    0
    0
    0
    4/15
    CLE
    W 5-3
    1.0
    2
    0
    0
    0
    0
    0
    0
    0
    4/10
    BOS
    W 3-2
    1.0
    1
    0
    0
    0
    0
    0
    0
    0
    4/8
    WSH
    W 6-1
    1.0
    0
    0
    0
    0
    0
    0
    0
    0
    4/7
    WSH
    W 7-6
    1.0
    2
    0
    1
    0
    0
    0
    1
    0
    4/5
    DET
    W 5-3
    1.0
    1
    0
    0
    0
    0
    0
    0
    0
    4/1
    NYM
    W 2-1
    1.0
    2
    0
    0
    0
    0
    1
    0
    0
    3/31
    NYM
    W 3-0
    1.0
    0
    0
    0
    0
    0
    0
    0
    0
    3/28
    TB
    W 6-5
    1.0
    0
    0
    0
    0
    0
    2
    0
    0
    3/26
    TB
    W 9-7
    1.1
    2
    0
    0
    0
    0
    1
    0
    0
    Regular Season Totals
    27.7
    29
    8
    5
    0
    0
    27
    14
    12
Riley O’Brien

Riley O’Brien Splits   2026

  • Splits
    GS
    IP
    W
    L
    ERA
    K
    BB
    HBP
    CG
    H
    R
    ER
    SVO
    S
    AVG
    HR
    Overall
    0
    33.1
    3
    3
    0.0
    33
    11
    6
    0
    29
    17
    15
    23
    19
    0.236
    2
    Home
    0
    19.0
    2
    2
    0.0
    15
    6
    0
    0
    22
    10
    10
    13
    11
    0.293
    0
    Away
    0
    14.1
    1
    1
    0.0
    18
    5
    0
    0
    7
    7
    5
    10
    8
    0.146
    2
    Night
    0
    19.2
    1
    2
    0.0
    15
    6
    0
    0
    13
    10
    8
    16
    15
    0.191
    0
    Day
    0
    13.2
    2
    1
    0.0
    18
    5
    0
    0
    16
    7
    7
    7
    4
    0.291
    2
    vs Righty
    0
    0.0
    0
    0
    0.0
    19
    5
    2
    0
    12
    7
    0
    0
    0
    0.203
    1
    vs Lefty
    0
    0.0
    0
    0
    0.0
    14
    6
    4
    0
    17
    10
    0
    0
    0
    0.266
    1
    March
    0
    3.1
    1
    0
    0.0
    2
    0
    0
    0
    3
    0
    0
    1
    1
    0.250
    0
    April
    0
    12.0
    2
    1
    0.0
    15
    1
    0
    0
    8
    3
    2
    9
    7
    0.186
    0
    May
    0
    10.0
    0
    1
    0.0
    10
    3
    0
    0
    10
    8
    7
    8
    6
    0.270
    1
    June
    0
    8.0
    0
    1
    0.0
    6
    7
    0
    0
    8
    6
    6
    5
    5
    0.258
    1
    Opponent
    vs PIT 0 2.0 0 0 0.0 1 1 0 0 3 2 2 2 1 0.375 0
    vs SEA 0 1.0 0 1 0.0 1 1 0 0 4 2 2 1 0 0.571 0
    vs TB 0 2.1 1 0 0.0 2 0 0 0 3 0 0 0 0 0.333 0
    vs LAD 0 1.0 0 0 0.0 2 0 0 0 4 2 2 1 1 0.571 0
    vs KC 0 2.0 0 0 0.0 1 0 0 0 3 2 2 0 0 0.375 1
    vs MIL 0 0.2 0 0 0.0 0 0 0 0 0 0 0 1 1 0.000 0
    vs BOS 0 1.0 0 0 0.0 1 0 0 0 0 0 0 1 1 0.000 0
    vs CIN 0 3.1 0 1 0.0 4 2 0 0 3 1 0 2 2 0.231 0
    vs HOU 0 2.0 1 0 0.0 3 0 0 0 1 0 0 2 1 0.167 0
    vs WSH 0 2.0 0 0 0.0 2 0 0 0 0 1 0 1 1 0.000 0
    vs CLE 0 2.0 1 0 0.0 3 0 0 0 0 0 0 1 1 0.000 0
    vs DET 0 1.0 0 0 0.0 1 0 0 0 0 0 0 1 1 0.000 0
    vs ATH 0 2.0 0 0 0.0 2 1 0 0 0 0 0 2 2 0.000 0
    vs SD 0 3.0 0 0 0.0 4 1 0 0 2 2 2 3 2 0.182 1
    vs CHC 0 1.0 0 0 0.0 0 0 0 0 1 1 1 1 1 0.250 0
    vs AZ 0 1.0 0 0 0.0 0 0 0 0 0 0 0 1 1 0.000 0
    vs NYM 0 2.0 0 0 0.0 2 0 0 0 1 0 0 1 1 0.143 0
    vs TEX 0 2.0 0 1 0.0 2 2 0 0 3 3 3 1 1 0.375 0
    vs MIA 0 1.0 0 0 0.0 1 0 0 0 1 0 0 1 1 0.250 0
    vs MIN 0 1.0 0 0 0.0 1 3 0 0 0 1 1 0 0 0.000 0
    Venue
    @ Detroit 0 1.0 0 0 0.0 1 0 0 0 0 0 0 1 1 0.000 0
    @ San Diego 0 2.0 0 0 0.0 4 0 0 0 2 2 2 2 1 0.250 1
    @ Washington 0 2.0 0 0 0.0 2 0 0 0 0 1 0 1 1 0.000 0
    @ Cincinnati 0 1.1 0 1 0.0 2 1 0 0 0 1 0 0 0 0.000 0
    @ Pittsburgh 0 1.0 0 0 0.0 1 0 0 0 1 0 0 1 1 0.250 0
    @ Kansas City 0 1.0 0 0 0.0 1 0 0 0 2 2 2 0 0 0.400 1
    @ Houston 0 2.0 1 0 0.0 3 0 0 0 1 0 0 2 1 0.167 0
    @ St. Louis 0 19.0 2 2 0.0 15 6 0 0 22 10 10 13 11 0.293 0
    @ Miami 0 1.0 0 0 0.0 1 0 0 0 1 0 0 1 1 0.250 0
    @ Athletics 0 2.0 0 0 0.0 2 1 0 0 0 0 0 2 2 0.000 0
    @ Minnesota 0 1.0 0 0 0.0 1 3 0 0 0 1 1 0 0 0.000 0
Riley O’Brien

Riley O’Brien Player Profile  

Team St. Louis Cardinals
Birthdate 2/6/1995 (31)
Status A
HT/WT 6'4", 180 lbs
Draft Info 2017: Rd 8; Pk 4 (TB)
Birthplace Seattle, WA, USA
Position RP
College College of Idaho

Career History

St. Louis Cardinals 2024-Present (3 seasons)
Seattle Mariners 2022-2024 (2 seasons)
Cincinnati Reds 2021-2022 (2 seasons)

Riley O'Brien: More News

Cardinals Owner Sends Clear Message About Trade Deadline Moves

Cardinals Owner Sends Clear Message About Trade Deadline Moves

Red Sox Trade Idea Offloads $75 Million Starter Back to St. Louis

Red Sox Trade Idea Offloads $75 Million Starter Back to St. Louis

Former Cardinals Starter Breaks Marlins’ Franchise Record

Former Cardinals Starter Breaks Marlins’ Franchise Record

Five-Year Cardinals’ Backstop Signs With Boston Red Sox

Five-Year Cardinals’ Backstop Signs With Boston Red Sox

St. Louis Cardinals Facing Harsh JJ Wetherholt All-Star Reality

St. Louis Cardinals Facing Harsh JJ Wetherholt All-Star Reality

Cardinals Announce Masyn Winn Change Before Diamondbacks Game

Cardinals Announce Masyn Winn Change Before Diamondbacks Game

Red Sox Sonny Gray Named Possible Trade Fit for Two NL Contenders

Red Sox Sonny Gray Named Possible Trade Fit for Two NL Contenders

St. Louis Cardinals Trade 3-Year Player to Rays Amidst Diamondbacks Series

St. Louis Cardinals Trade 3-Year Player to Rays Amidst Diamondbacks Series

Cardinals Plans for Dustin May Revealed at Trade Deadline

Cardinals Plans for Dustin May Revealed at Trade Deadline

The St. Louis Cardinals May Have MLB’s Most Exciting Prospect

The St. Louis Cardinals May Have MLB’s Most Exciting Prospect

Cardinals Deadline Concept Lands Giants All-Star to Boost Infield

Cardinals Deadline Concept Lands Giants All-Star to Boost Infield

5-Year St. Louis Cardinals Player Released By Current MLB Team

5-Year St. Louis Cardinals Player Released By Current MLB Team

Newest Cardinals Promotion Could Make Big Impact on Bullpen

Newest Cardinals Promotion Could Make Big Impact on Bullpen

Cardinals DFA 3-Year MLB Player Before Royals Series

Cardinals DFA 3-Year MLB Player Before Royals Series

Cardinals Call Up Former 6th-Round Pick, Designate Chris Roycroft for Assignment

Cardinals Call Up Former 6th-Round Pick, Designate Chris Roycroft for Assignment

Cardinals Trade Idea Boosts Lineup with Twins 2-Time All-Star

Cardinals Trade Idea Boosts Lineup with Twins 2-Time All-Star

Cardinals’ Named Fit For Angels’ Elite Starting Pitcher Duo

Cardinals’ Named Fit For Angels’ Elite Starting Pitcher Duo

Cardinals Trade Deadline Idea Boosts Rotation With $6 Million Tigers Starter

Cardinals Trade Deadline Idea Boosts Rotation With $6 Million Tigers Starter

Cardinals Prospect Makes Case for MLB Promotion with Big Night

Cardinals Prospect Makes Case for MLB Promotion with Big Night

Cardinals Fans Will Love What Top MLB Draft Prospect Said About Yadier Molina

Cardinals Fans Will Love What Top MLB Draft Prospect Said About Yadier Molina

3-Year St. Louis Cardinals Player Released By Current MLB Team

3-Year St. Louis Cardinals Player Released By Current MLB Team

MLB Reacts: Cardinals’ Dustin May Tosses One-Hit Shutout Against Padres

MLB Reacts: Cardinals’ Dustin May Tosses One-Hit Shutout Against Padres

Where Cardinals’ Jordan Walker Stands in Latest NL All-Star Ballot

Where Cardinals’ Jordan Walker Stands in Latest NL All-Star Ballot

Three Players Cardinals Could Trade For to Fix The Bullpen

Three Players Cardinals Could Trade For to Fix The Bullpen

Cardinals Promoting Power-Hitting Infielder, Demoting Gorman Before Twins Series

Cardinals Promoting Power-Hitting Infielder, Demoting Gorman Before Twins Series

Cardinals Breakout Closer’s Stock Rising Ahead of Trade Deadline

Cardinals Breakout Closer’s Stock Rising Ahead of Trade Deadline

Red Sox All-Star Named Top Trade Chip with Outfield Logjam

Red Sox All-Star Named Top Trade Chip with Outfield Logjam

Only 5 MLB Hitters Have Done What Alec Burleson Just Accomplished

Only 5 MLB Hitters Have Done What Alec Burleson Just Accomplished

St. Louis Cardinals Announce Jordan Walker Change Before Mets Game

St. Louis Cardinals Announce Jordan Walker Change Before Mets Game

Cardinals Fan Favorite Named Top Trade Chip After Return from Injury

Cardinals Fan Favorite Named Top Trade Chip After Return from Injury

Riley O'Brien: More News