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Riley O'Brien

Riley O'Brien

St. Louis Cardinals
P
Age: 31
Bats/Throws: R/R
6'4" / 180
DOB: 2/6/1995
(31 years, 8 months, 29 days)
P
Player Dashboard:
Season20262027Total
TeamSTLFGDC- - -
LevelMLBPROJMLB
G6665118
GS001
IP64.065.0122.1
K%23.2%23.1%23.0%
BB%10.5%10.1%11.8%
GB%45.8%48.9%
ERA4.083.723.83
FIP3.943.854.26
WAR0.30.50.2
2026 Pitch
Selection
SI:58%
SL:41%
RosterResource
Current Role:Bullpen: Closer (RR)
How Acquired:Purchased (SEA) Nov'23
Draft:2017, Rd: 8, Pick: 4, Ovr: 229
Draft Team:Tampa Bay Rays
Signing Bonus:$7,500
School:College of Idaho
Contract1 yr, $795k (2026) (RR)
Pre-Arbitration
AAV: $795k
Service Time
1.129
MiLB Options
0
Free Agent
2031
Arb Eligible
2028
News
Rotowire: O'Brien said recently that he wants to put on "as much muscle as I can" this offseason in order to help his body absorb the toll of the 2027 season, Daniel Guerrero of the St. Louis Post-Dispatch reports. (10/7/2026)
RG
10/9/26
RG
10/6/26
RG
9/26/26
RG
9/14/26
FG
5/23/26
FG
5/6/26
FG
4/23/26
RG
4/2/26
RG
2/18/26
RG
9/21/25
RG
8/17/25
RG
8/15/25
RG
8/10/25
RG
8/3/25
FG
11/21/23
FG
5/13/22
FG
4/11/22
FG
9/8/21
FG
12/23/20
FG
9/1/20
FG
3/18/20
FG
7/26/19
FG
2/8/19
FG
1/30/19
FG
1/22/19
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RG
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Season20262027Total
TeamSTLFGDC- - -
LevelMLBPROJMLB
G6665118
GS001
IP64.065.0122.1
K%23.2%23.1%23.0%
BB%10.5%10.1%11.8%
GB%45.8%48.9%
ERA4.083.723.83
FIP3.943.854.26
WAR0.30.50.2
2026 Pitch
Selection
SI:58%
SL:41%
RosterResource
Current Role:Bullpen: Closer (RR)
How Acquired:Purchased (SEA) Nov'23
Draft:2017, Rd: 8, Pick: 4, Ovr: 229
Draft Team:Tampa Bay Rays
Signing Bonus:$7,500
School:College of Idaho
Contract1 yr, $795k (2026) (RR)
Pre-Arbitration
AAV: $795k
Service Time
1.129
MiLB Options
0
Free Agent
2031
Arb Eligible
2028
News
Rotowire: O'Brien said recently that he wants to put on "as much muscle as I can" this offseason in order to help his body absorb the toll of the 2027 season, Daniel Guerrero of the St. Louis Post-Dispatch reports. (10/7/2026)
RG
10/9/26
RG
10/6/26
RG
9/26/26
RG
9/14/26
FG
5/23/26
FG
5/6/26
FG
4/23/26
RG
4/2/26
RG
2/18/26
RG
9/21/25
RG
8/17/25
RG
8/15/25
RG
8/10/25
RG
8/3/25
FG
11/21/23
FG
5/13/22
FG
4/11/22
FG
9/8/21
FG
12/23/20
FG
9/1/20
FG
3/18/20
FG
7/26/19
FG
2/8/19
FG
1/30/19
FG
1/22/19
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Splits

Season:
2026
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    Standard

    SeasonHandednessIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026vs L33.1- - -150304017123194629.244.369.350.321
    2026vs R30.2- - -126236018172100435.209.298.318.282
    SeasonHome / AwayIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Home36.03.50151314016142121531.233.318.308.285
    2026Away28.04.82125226019153173533.220.361.370.325
    2026Home vs L19.1- - -871920108171418.253.345.320.301
    2026Home vs R16.2- - -64122066150113.207.281.293.263
    2026Away vs L14.0- - -631120742123211.229.403.396.349
    2026Away vs R14.0- - -6211401211150322.212.317.346.302
    SeasonMonthlyIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Mar/Apr15.11.1758111032010217.200.241.218.212
    2026May10.06.3044101087130310.270.372.378.342
    2026Jun10.05.40489206617017.237.362.368.330
    2026Jul8.12.163842022072412.148.395.222.298
    2026Aug11.05.734710307715008.238.319.381.312
    2026Sept/Oct9.14.824191095262010.265.375.471.355
    20261st Half39.13.43165314017152130739.218.313.289.280
    20262nd Half24.25.11111226018143164325.242.373.407.338
    SeasonLeverageIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Low Leverage13.1- - -5610102216017.208.304.292.274
    2026Medium Leverage18.2- - -79195087140218.260.316.370.306
    2026High Leverage32.0- - -141244025203194739.214.362.330.313
    SeasonSituationalIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Bases Empty30.0- - -1332760111130330.231.323.308.291
    2026Men on Base34.0- - -143264034284164734.224.350.362.314
    2026Men In Scoring22.0- - -105214032263134524.253.382.410.343
    SeasonThrough CountIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Through 3 - 01.0- - -1500011011311.000.800.000.526
    2026Through 3 - 13.0- - -2100000012105.000.571.000.384
    2026Through 3 - 28.0- - -44410441140210.143.455.286.371
    2026Through 2 - 05.0- - -3651066115325.263.611.474.479
    2026Through 1 - 016.1- - -96246014121233214.338.510.465.432
    2026Through 2 - 112.0- - -54610440121211.150.370.175.280
    2026Through 1 - 124.2- - -102165012101121325.184.304.276.269
    2026Through 0 - 138.2- - -14117301512261750.135.214.206.195
    2026Through 2 - 216.0- - -698201110290425.145.304.291.281
    2026Through 1 - 222.1- - -8711201513360440.145.241.289.243
    2026Through 0 - 218.0- - -6781076220434.133.209.250.211
    SeasonSP / RPIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026As Reliever64.04.0827653100352952941064.227.337.335.303
    SeasonShiftsIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026No Shift10.0- - -4311000000000.262.256.262.228
    2026Shift - All28.1- - -125371000000000.303.303.385.300
    2026Shift - Traditional25.0- - -109331000000000.303.303.394.304
    2026Shift - Non Traditional3.1- - -164000000000.308.308.308.274
    SeasonTTOIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    20261st Through Order as RP64.04.0827653100352952941064.227.337.335.303
    SeasonHandednessIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026vs L33.1- - -150304017123194629.244.369.350.321
    2026vs R30.2- - -126236018172100435.209.298.318.282
    SeasonHome / AwayIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Home36.03.50151314016142121531.233.318.308.285
    2026Away28.04.82125226019153173533.220.361.370.325
    2026Home vs L19.1- - -871920108171418.253.345.320.301
    2026Home vs R16.2- - -64122066150113.207.281.293.263
    2026Away vs L14.0- - -631120742123211.229.403.396.349
    2026Away vs R14.0- - -6211401211150322.212.317.346.302
    SeasonMonthlyIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Mar/Apr15.11.1758111032010217.200.241.218.212
    2026May10.06.3044101087130310.270.372.378.342
    2026Jun10.05.40489206617017.237.362.368.330
    2026Jul8.12.163842022072412.148.395.222.298
    2026Aug11.05.734710307715008.238.319.381.312
    2026Sept/Oct9.14.824191095262010.265.375.471.355
    20261st Half39.13.43165314017152130739.218.313.289.280
    20262nd Half24.25.11111226018143164325.242.373.407.338
    SeasonLeverageIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Low Leverage13.1- - -5610102216017.208.304.292.274
    2026Medium Leverage18.2- - -79195087140218.260.316.370.306
    2026High Leverage32.0- - -141244025203194739.214.362.330.313
    SeasonSituationalIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Bases Empty30.0- - -1332760111130330.231.323.308.291
    2026Men on Base34.0- - -143264034284164734.224.350.362.314
    2026Men In Scoring22.0- - -105214032263134524.253.382.410.343
    SeasonThrough CountIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026Through 3 - 01.0- - -1500011011311.000.800.000.526
    2026Through 3 - 13.0- - -2100000012105.000.571.000.384
    2026Through 3 - 28.0- - -44410441140210.143.455.286.371
    2026Through 2 - 05.0- - -3651066115325.263.611.474.479
    2026Through 1 - 016.1- - -96246014121233214.338.510.465.432
    2026Through 2 - 112.0- - -54610440121211.150.370.175.280
    2026Through 1 - 124.2- - -102165012101121325.184.304.276.269
    2026Through 0 - 138.2- - -14117301512261750.135.214.206.195
    2026Through 2 - 216.0- - -698201110290425.145.304.291.281
    2026Through 1 - 222.1- - -8711201513360440.145.241.289.243
    2026Through 0 - 218.0- - -6781076220434.133.209.250.211
    SeasonSP / RPIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026As Reliever64.04.0827653100352952941064.227.337.335.303
    SeasonShiftsIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    2026No Shift10.0- - -4311000000000.262.256.262.228
    2026Shift - All28.1- - -125371000000000.303.303.385.300
    2026Shift - Traditional25.0- - -109331000000000.303.303.394.304
    2026Shift - Non Traditional3.1- - -164000000000.308.308.308.274
    SeasonTTOIPERATBFH2B3BRERHRBBIBBHBPSOAVGOBPSLGwOBA
    20261st Through Order as RP64.04.0827653100352952941064.227.337.335.303