USASt. Louis Cardinals Value & Market Layer
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Riley Chun-Young O'Brien is an American professional baseball pitcher for the St. Louis Cardinals of Major League Baseball (MLB). He has previously played in MLB for the Cincinnati Reds and Seattle Mariners. He made his MLB debut in 2021.
| Season | G | GS | W | L | SV | IP | K | BB | ERA | WHIP | K/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 17 | 0 | 3 | 1 | 10 | 17.0 | 19 | 1 | 2.1 | 0.9 | 10.1 |
| 2025 | 42 | 0 | 3 | 1 | 6 | 48.0 | 45 | 22 | 2.1 | 1.1 | 8.4 |
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St. Louis Cardinals vs Cincinnati Reds | MLB.TV / Gameday
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