Riley O’Brien

RO
Riley O'Brien #61
St. Louis Cardinals Pitcher
6′4″ 31 yrs US
59 Games Played
4.18 ERA #427
55 Strikeouts #257
2 Wins #266
1.25 WHIP #314
56.0 Innings #259
L 6
BB 22
H 48
HR 3
Career Statistics
Pitching
Season G IP W L ERA WHIP SO BB H HR
MLB 2024 8 8.0 0 0 11.25 2.63 11 8 13 2
MLB 2025 41 48.0 3 1 1.5 1.06 45 20 31 2
MLB 2026 59 56.0 2 6 4.18 1.25 55 22 48 3
Career 108 112.0 5 7 3.54 1.27 111 50 92 7
MLB Spring Training 2026* 4 3.2 0 0 2.45 1.64 3 5 1 0

* Not split by stage - all games included.

Game Log
IP: Innings Pitched · H: Hits Allowed · R: Runs · ER: Earned Runs · BB: Walks · K: Strikeouts · HR: Home Runs · PC-ST: Pitches-Strikes · W/L: Win/Loss Decision
Splits
Pitching
Split G IP W L ERA WHIP SO BB H HR
Home 29 28.2 2 2 3.45 1.19 23 8 26 0
Away 30 27.1 0 4 4.94 1.32 32 14 22 3
vs. Opponents
OPP W-L G IP W L ERA WHIP SO BB H HR
CINReds 5-1 6 5.2 0 1 0.00 1.41 8 4 4 0
CHCCubs 4-1 5 5.0 0 0 1.80 0.40 3 1 1 0
ATLBraves 3-0 3 3.0 0 0 0.00 0.67 3 1 1 0
LADDodgers 2-1 3 2.1 0 1 15.43 3.00 3 1 6 0
SDPadres 2-1 3 3.0 0 0 6.00 1.00 4 1 2 1
WSHNationals 2-0 2 1.2 0 0 0.00 0.00 2 0 0 0
PHIPhillies 1-1 2 1.2 0 1 32.40 3.60 1 1 5 1
COLRockies 2-0 2 2.0 0 0 0.00 1.00 2 1 1 0
BALOrioles 1-1 2 2.0 0 1 4.50 1.50 1 0 3 0
PITPirates 2-0 2 2.0 0 0 9.00 2.00 1 1 3 0
ARIDiamondbacks 2-0 2 2.0 0 0 0.00 1.00 1 1 1 0
KCRoyals 2-0 2 2.0 0 0 9.00 1.50 1 0 3 1
OAKAthletics 2-0 2 2.0 0 0 0.00 0.50 2 1 0 0
MILBrewers 2-0 2 1.2 0 0 0.00 0.60 1 0 1 0
TEXRangers 1-1 2 2.0 0 1 13.50 2.50 2 2 3 0
NYMMets 2-0 2 2.0 0 0 0.00 0.50 2 0 1 0
CLEGuardians 2-0 2 2.0 1 0 0.00 0.00 3 0 0 0
LAAAngels 1-1 2 1.1 0 1 13.50 3.00 4 2 2 0
TBRays 2-0 2 2.1 1 0 0.00 1.29 2 0 3 0
MIAMarlins 2-0 2 2.0 0 0 0.00 0.50 2 0 1 0
HOUAstros 2-0 2 1.2 0 0 0.00 0.60 2 0 1 0
SFGiants 0-1 1 1.0 0 0 0.00 1.00 0 0 1 0
SEAMariners 0-1 1 1.0 0 0 18.00 5.00 1 1 4 0
BOSRed Sox 1-0 1 0.2 0 0 0.00 0.00 0 0 0 0
NYYYankees 1-0 1 1.0 0 0 0.00 1.00 1 1 0 0
MINTwins 1-0 1 1.0 0 0 9.00 3.00 1 3 0 0
TORBlue Jays 1-0 1 1.0 0 0 0.00 1.00 1 0 1 0
DETTigers 1-0 1 1.0 0 0 0.00 0.00 1 0 0 0