MLB · P · St. Louis Cardinals
Cooper Hjerpe
B/T L/L · 6' 3" · 200 lb · born Davis, CA, USA · age 25 · draft 2022 rd 1 · played P 17 · MLB debut 2026-09-06
134 batters faced scored this season His season card →
Scout’s note
Cooper Hjerpe, a 2022 first-rounder from Davis, CA, just reached the Cardinals in September and has 15 strikeouts in 4 games. That's the number — a left-hander getting swings and misses in his first taste, and nothing more to say yet.
Note written · FVR scout (GLM-5.2)
We wrote about Hjerpe here — The Buzz September 7, 2026
What he’s paid
Not statedA market fact, not an engine read: what a club decided about him, on the season before this one. Figures from Cot’s, as of .
- Service time
- 0 yr 22 d
- Options left
- 2 / 3
Cash and the tax hit are two different rulebooks and are never subtracted from one another — see the payroll board for his club, St. Louis Cardinals.
A second set of books
The same contract, read by MLB Spreadsheets (Ethan Hullihen), as of . We keep two sources on this because one source cannot check itself.
- Tax AAV
- $0.78M
- Guaranteed
- $0.78M
- Term
- 1 yr
- His class
- Pre-Arb
What the sheet prices each season at
| Season | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 |
|---|---|---|---|---|---|---|---|
| Salary | Minimum | Minimum | Minimum | Minimum | Arb 1 | Arb 2 | Arb 3 |
A base salary under his own reading, and never subtracted from the cash figure above: a signing bonus lands in one and not the other, so the two disagree on most men without either being wrong. And the sheet does not mark which future seasons are GUARANTEED — a club option and a projected arbitration award are both just a number here, so read past the end of the deal as his forecast rather than as money owed.
The tax AAV above is his number under the CBA’s own rulebook, not the average we work out from Cot’s total. On a contract with deferred money the two come apart on purpose — and neither is subtracted from the other.
Collect Cooper Hjerpe
If the signal is right, the cardboard usually finds out later. Current listings:
Cooper Hjerpe cards on eBay →Paid link — as an eBay Partner, FVR earns from qualifying purchases.
The Bureau on Cooper Hjerpe
The scouting press, in their own words
Cooper Hjerpe was awesome in a piggy back role today for his MLB Debut! Four perfect innings, six strikeouts. Such a unique angle for hitters, especially with that nasty sweeper. He has the goods to be an effective big league arm in various roles. https://t.co/9RsKPPflmy https://t.co/PNYOXmudHi
Cooper Hjerpe goes to his sweeper to pick up his first MLB strikeout 78.1 MPH 2485 RPM -1.4" IVB 11.1" HB https://t.co/5aQlVA0fGm
Cooper Hjerpe goes to his sweeper to pick up his first Triple-A strikeout https://t.co/c65gfoTkR7
Umpire favor
-0.2 net runs over 4 graded games — an even shake from the zone this season.
The line
Bio & season lines: MLB StatsAPI · refreshed nightly · abbreviations →