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Cooper Hjerpe
Cooper Hjerpe
St. Louis Cardinals • Pitcher
Age 25 • 6' 3" • 200 lb
Bats: L • Throws: L
MLB Debut: 2026-09-06
Born: Davis , CA • USA
Draft: 2022
2026 Stats
W
1
L
0
ERA
4.38
WHIP
1.30
IP
12.1
SO
15
SV
0
HLD
0
G
4
GS
0
Career Stats
W
1
L
0
ERA
4.38
WHIP
1.30
IP
12.1
SO
15
SV
0
HLD
0
G
4
GS
0
Year-by-Year Pitching
Year Team GGSIP WLSVSO ERAWHIPAwards
2026 STL 4 — 12.1 1 — — 15 4.38 1.30
Spring Training
Pitching
YearTeamGGSIPWLSVSOERAWHIP
2024 STL 1—2.0 ———4 0.001.00
2025 STL 2—3.0 ———4 6.002.33
Game Logs
Season selector loads one year at a time.
Pitching
Date Opponent IP H R ER BB SO HR
2026-09-24 @ PIT 3.1 3 0 0 3 3 0
2026-09-18 vs WSH 4.0 2 2 2 2 3 0
2026-09-12 vs CWS 1.0 2 4 4 4 3 0
2026-09-06 @ COL 4.0 0 0 0 0 6 0
Transactions
Entire history • newest first.
2026-09-28
St. Louis Cardinals recalled LHP Cooper Hjerpe from Memphis Redbirds.
2026-09-25
St. Louis Cardinals optioned LHP Cooper Hjerpe to Memphis Redbirds.
2026-09-06
St. Louis Cardinals recalled LHP Cooper Hjerpe from Memphis Redbirds.
2026-03-09
St. Louis Cardinals optioned LHP Cooper Hjerpe to Memphis Redbirds.
2026-01-14
LHP Cooper Hjerpe changed number to 56.
2025-11-18
St. Louis Cardinals selected the contract of LHP Cooper Hjerpe from Springfield Cardinals.
2025-01-16
St. Louis Cardinals invited non-roster LHP Cooper Hjerpe to spring training.
2024-01-10
St. Louis Cardinals invited non-roster LHP Cooper Hjerpe to spring training.
2023-02-26
LHP Cooper Hjerpe and assigned to St. Louis Cardinals.
2022-07-22
St. Louis Cardinals signed LHP Cooper Hjerpe.
Scouting Report
Statcast-style percentiles • Basenerd theme
Season 2026
Ready
Basic Line
Season / Game
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Pitch Arsenal
Usage • Velo • Break • Spin • xwOBA
Pitch N Use% Velo HB IVB Spin xwOBA Whiff% Zone% Chase% BNStuff+ BNCtrl+
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Notes
Primary pitch summary
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Movement Profile (Induced Break)
Pitcher's View: HB vs Rise / Drop (in)
Circles: 12/18/24 in • Dots = pitch types (size ~ pitch count)
Pitch Location Heatmaps
KDE-style blur • fixed zone • catcher POV
vs. LHH
vs. RHH
Zone: left -0.7083 / right 0.7083 • bot 1.595 / top 3.394 • Domain: X [-2,2], Z [0,5]
Statcast Game Log
Per-game pitch metrics from Statcast
Date Pitches Velo BNStuff+ BNCtrl+ Whiff% Zone% Chase% K% BB% xwOBA
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