| HT/WT | 6'4", 180 lbs |
| Age | 31 |
| Draft | 2017: Rd 8, Pk 4 (TB) |
| College | College of Idaho |
| Birthplace | Seattle, USA |
| Bat/throw | R/R |
| SV | ERA | WHIP | K |
|---|---|---|---|
| 25 | 3.347 | 1.14 | 186 |
Live and Upcoming
St. Louis Cardinals at Arizona Diamondbacks
MLBThe Diamondbacks play the Cardinals in the final game of a three-game National League series. The Cardinals rely on Jordan Walker who leads the team with home runs, batting average and RBIs while the Diamondbacks rely on Ketel Marte.
St. Louis Cardinals at Los Angeles Angels
MLBPrimer juego de la serie regular de la MLB 2026. St. Louis Cardinals visita a Los Angeles Angels. Desde el Angel Stadium, en Anaheim, California.
St. Louis Cardinals at Los Angeles Angels
MLBThe St. Louis Cardinals and the Los Angeles Angels conclude a three-game series at Angel Stadium. Right-handed pitcher Michael McGreevy is the projected starter for the Cardinals against left-handed pitcher Reid Detmers for the Angels.
Riley O Brien Stats
| Season | Team | GP | GS | W | L | ERA | WHIP | IP | K/BB | ER | SAVE | HLD | K | BB | H | TOTAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | STL | 40 | 0 | 3 | 3 | 3.347 | 1.14 | 40.1 | 2.9 | 15 | 25 | 1 | 186 | 14 | 32 | 17 |
| 2025 | STL | 42 | 0 | 3 | 1 | 2.063 | 1.15 | 48.0 | 2.0 | 11 | 6 | 6 | 212 | 20 | 33 | 13 |
| 2024 | STL | 8 | 0 | 0 | 0 | 11.25 | 2.62 | 8.0 | 1.4 | 10 | 0 | 0 | 52 | 8 | 13 | 10 |
| 2022 | SEA | 1 | 0 | 0 | 0 | 0 | 2.00 | 1.0 | 1.0 | 0 | 0 | 0 | 5 | 1 | 1 | 0 |
| 2021 | CIN | 1 | 1 | 0 | 1 | 13.5 | 3.75 | 1.1 | 0.7 | 2 | 0 | 0 | 11 | 3 | 2 | 2 |
| Career | 92 | 1 | 6 | 5 | 2.74 | 0.97 | 98.2 | 0.7 | 38 | 31 | 7 | 466 | 46 | 81 | 42 |
On Demand
St. Louis Cardinals at Arizona Diamondbacks
MLBThe Cardinals face the Diamondbacks at Chase Field to open a three-game series. Jordan Walker leads the Cardinals in home runs, batting average and runs batted in, while Ketel Marte leads the Diamondbacks in home runs and runs batted in.