Riley O'Brien
Riley O'Brien is a right-handed pitcher for the St. Louis Cardinals. In 2026, O'Brien has posted a 3.35 ERA with 40 strikeouts in 40.1 innings pitched. Riley made his MLB debut on September 28, 2021 and was born in Seattle, USA.
Riley O'Brien — 2026 Pitching Stats
3.35
ERA
3-3
W-L
40
SO
1.14
WHIP
40.1
IP
-
FIP
-
xFIP
-
SIERA
8.93
K/9
3.12
BB/9
-
WAR
40
G
-
GS
25
SV
32
H
2
HR
14
BB
Riley O'Brien — 2026 Statcast Data
93.1
Avg Velocity
101.1
Max Velocity
2270
Avg Spin (RPM)
647
Total Pitches
Riley O'Brien — 2026 Pitch Arsenal
Riley O'Brien — Career Pitching Stats
| Year | Team | W | L | ERA | G | GS | SV | IP | SO | BB | WHIP | FIP | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | STL | 3 | 3 | 3.35 | 40 | - | 25 | 40.1 | 40 | 14 | 1.14 | - | - |
Riley O'Brien — Latest News
