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Riley O'Brien
Pitcher — St. Louis Cardinals
#61Height: 6'4"
As Pitcher
Challenges
11
Overturn Rate
45.5%
Overturned
5
Confirmed
6
Recent Challenges
| Date | Inning | Role | Opponent | Call | Result | Zone |
|---|---|---|---|---|---|---|
| 2026-06-13 | ▼ 9 | As Pitcher | Batter: Trevor Larnach(STL) | Ball → Ball | Confirmed | |
| 2026-06-06 | ▲ 9 | As Pitcher | Batter: Sal Stewart(STL) | Ball → Strike | Overturned | |
| 2026-06-06 | ▲ 9 | As Pitcher | Batter: Sal Stewart(CIN) | Strike → Ball | Overturned | |
| 2026-06-02 | ▲ 9 | As Pitcher | Batter: Nicky Lopez(TEX) | Strike → Strike | Confirmed | |
| 2026-05-14 | ▼ 9 | As Pitcher | Batter: Shea Langeliers(STL) | Ball → Strike | Overturned | |
| 2026-05-02 | ▲ 9 | As Pitcher | Batter: Kyle Tucker(STL) | Ball → Ball | Confirmed | |
| 2026-05-02 | ▲ 9 | As Pitcher | Batter: Freddie Freeman(STL) | Ball → Strike | Overturned | |
| 2026-04-25 | ▲ 9 | As Pitcher | Batter: Mitch Garver(STL) | Ball → Ball | Confirmed | |
| 2026-04-21 | ▼ 9 | As Pitcher | Batter: Xavier Edwards(STL) | Ball → Ball | Confirmed | |
| 2026-04-21 | ▼ 9 | As Pitcher | Batter: Xavier Edwards(STL) | Ball → Strike | Overturned | |
| 2026-04-15 | ▲ 9 | As Pitcher | Batter: Rhys Hoskins(CLE) | Strike → Strike | Confirmed |