Riley O'Brien
St. Louis Cardinals- Age
- 31
- Born
- February 6, 1995 · Seattle, WA, USA
- Height / weight
- 6' 4", 180 lb
- Bats / throws
- Right / Right
- MLB debut
- September 28, 2021
2026 pitching
- W-L
- 3-9
- ERA
- 4.08
- SO
- 64
- WHIP
- 1.28
- IP
- 64.0
- SV
- 38
Last 15 games (pitching)
| Date | Opp | Result | IP | H | R | ER | BB | SO | HR | ERA |
|---|---|---|---|---|---|---|---|---|---|---|
| 9/20 | vs WSH | W | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 4.08 |
| 9/19 | vs WSH | L | 1.0 | 1 | 1 | 0 | 0 | 2 | 0 | 4.14 |
| 9/16 | vs SF | L | 1.0 | 2 | 2 | 1 | 1 | 0 | 1 | 4.21 |
| 9/14 | vs SF | W | 1.0 | 1 | 0 | 0 | 1 | 2 | 0 | 4.13 |
| 9/12 | vs CWS | L | 1.0 | 1 | 2 | 2 | 1 | 2 | 1 | 4.20 |
| 9/11 | vs CWS | W | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 3.97 |
| 9/7 | @ SF | L | 1.0 | 1 | 1 | 0 | 2 | 0 | 0 | 4.03 |
| 9/4 | @ COL | W | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 4.11 |
| 9/3 | @ LAD | L | 0.1 | 2 | 2 | 2 | 1 | 0 | 0 | 4.18 |
| 9/2 | @ LAD | W | 1.0 | 0 | 1 | 0 | 0 | 1 | 0 | 3.88 |
| 8/27 | vs BAL | W | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 3.95 |
| 8/26 | vs BAL | L | 1.0 | 2 | 1 | 1 | 0 | 0 | 0 | 4.02 |
| 8/23 | @ PHI | L | 0.2 | 5 | 6 | 6 | 1 | 0 | 1 | 3.93 |
| 8/20 | @ CIN | W | 0.1 | 1 | 0 | 0 | 2 | 0 | 0 | 2.94 |
| 8/18 | @ CIN | W | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 2.96 |
ERA is the season ERA after that game.
Career pitching
| Season | Team | W | L | ERA | G | GS | SV | IP | H | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | STL | 3 | 9 | 4.08 | 66 | 0 | 38 | 64.0 | 53 | 29 | 5 | 29 | 64 | 1.28 |
| 2025 | STL | 3 | 1 | 2.06 | 42 | 0 | 6 | 48.0 | 33 | 11 | 2 | 22 | 45 | 1.15 |
| 2024 | STL | 0 | 0 | 11.25 | 8 | 0 | 0 | 8.0 | 13 | 10 | 2 | 8 | 11 | 2.63 |
| 2022 | SEA | 0 | 0 | 0.00 | 1 | 0 | 0 | 1.0 | 1 | 0 | 0 | 1 | 1 | 2.00 |
| 2021 | CIN | 0 | 1 | 13.50 | 1 | 1 | 0 | 1.1 | 2 | 2 | 2 | 3 | 2 | 3.75 |
| Career | 6 | 11 | 3.83 | 118 | 1 | 44 | 122.1 | 102 | 52 | 11 | 63 | 123 | 1.35 |
Regular season. Career high.
Stats from the MLB Stats API.