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Cooper Hjerpe
Pitcher — St. Louis Cardinals
#56Height: 6'3"
As Pitcher
Challenges
5
Overturn Rate
60%
Overturned
3
Confirmed
2
Recent Challenges
| Date | Inning | Role | Opponent | Call | Result | Zone |
|---|---|---|---|---|---|---|
| 2026-09-24 | ▼ 6 | As Pitcher | Batter: Ronny Simon(PIT) | Strike → Strike | Confirmed | |
| 2026-09-24 | ▼ 3 | As Pitcher | Batter: Ryan O'Hearn(STL) | Ball → Strike | Overturned | |
| 2026-09-18 | ▲ 5 | As Pitcher | Batter: CJ Abrams(STL) | Ball → Ball | Confirmed | |
| 2026-09-12 | ▲ 4 | As Pitcher | Batter: Miguel Vargas(STL) | Ball → Strike | Overturned | |
| 2026-09-06 | ▼ 4 | As Pitcher | Batter: Vimael Machín(STL) | Ball → Strike | Overturned |