John Klein
John Joseph Klein
Born: April 22, 2002
Brooklyn Park, MN US
Primary Position: Pitcher
Bats: Right
Throws: Right
Height: 6'5"
Weight: 225
Career: 2022-2026
Major League Statistics
John Klein has compiled a career record of 17 wins and 14 losses and a 4.06 ERA in his 62-game pitching career with the Twins, Cedar Rapids Kernels, Fort Myers Mighty Mussels, Wichita Wind Surge, St. Paul Saints and Buffalo Bisons. He began playing during the 2022 season and has taken the field during the 2026 campaign.
 Twins |
 Cedar Rapids Kernels |
 Fort Myers Mighty Mussels |
 St. Paul Saints |
 Wichita Wind Surge |
 Buffalo Bisons |
Click on column headings to sort.
Pitching:
| Year | Level | Lg | Team | W | L | W% | ERA | G | GS | GF | CG | SHO | SV | IP | H | R | ER | HR | BB | IBB | SO | HBP | BK | WP | BF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | R | FLCL | Twins | 0 | 0 | 0.00 | 2 | 0 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 9 | |
| 2023 | A | FLOR | Fort Myers Mighty Mussels | 2 | 1 | .667 | 2.97 | 6 | 6 | 0 | 1 | 0 | 0 | 30.3 | 18 | 10 | 10 | 1 | 13 | 0 | 30 | 3 | 1 | 0 | 122 |
| 2023 | Advanced A | MIDW | Cedar Rapids Kernels | 0 | 0 | 3.60 | 1 | 1 | 0 | 0 | 0 | 0 | 5.0 | 6 | 2 | 2 | 0 | 1 | 0 | 4 | 1 | 0 | 1 | 22 | |
| 2023 | R | FLCL | Twins | 0 | 3 | .000 | 5.87 | 6 | 6 | 0 | 0 | 0 | 0 | 23.0 | 29 | 17 | 15 | 3 | 9 | 0 | 27 | 6 | 0 | 2 | 111 |
| 2024 | Advanced A | MIDW | Cedar Rapids Kernels | 8 | 3 | .727 | 4.57 | 22 | 20 | 0 | 0 | 0 | 0 | 100.3 | 102 | 51 | 51 | 9 | 38 | 0 | 90 | 7 | 0 | 3 | 441 |
| 2025 | AAA | IL | St. Paul Saints | 0 | 5 | .000 | 6.66 | 7 | 4 | 0 | 0 | 0 | 0 | 25.7 | 26 | 20 | 19 | 1 | 13 | 0 | 33 | 3 | 0 | 2 | 117 |
| 2025 | AA | TL | Wichita Wind Surge | 7 | 5 | .583 | 3.12 | 24 | 11 | 0 | 0 | 0 | 0 | 80.7 | 70 | 42 | 28 | 6 | 24 | 0 | 95 | 8 | 0 | 4 | 347 |
| 2026 | AAA | IL | Buffalo Bisons | 0 | 0 | 4.15 | 1 | 1 | 0 | 0 | 0 | 0 | 4.3 | 3 | 2 | 2 | 0 | 2 | 0 | 2 | 1 | 0 | 0 | 14 | |
| 2026 | AAA | IL | St. Paul Saints | 2 | 4 | .333 | 5.91 | 24 | 14 | 0 | 0 | 0 | 0 | 64.0 | 63 | 43 | 42 | 14 | 34 | 0 | 74 | 4 | 3 | 3 | 287 |
| Totals | 17 | 14 | .548 | 4.06 | 62 | 42 | 0 | 1 | 0 | 0 | 244.0 | 223 | 125 | 110 | 17 | 90 | 0 | 254 | 22 | 1 | 10 | 1058 |
Fielding:
| Year | Level | Lg | Team | Pos | GP | PO | A | E | DP | Fld% | RF/G |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | R | FLCL | Twins | P | 2 | 0 | 0 | 0 | 0 | .000 | |
| 2023 | A | FLOR | Fort Myers Mighty Mussels | P | 6 | 1 | 4 | 0 | 0 | 1.000 | .833 |
| 2023 | R | FLCL | Twins | P | 6 | 0 | 0 | 0 | 0 | .000 | |
| 2023 | Advanced A | MIDW | Cedar Rapids Kernels | P | 1 | 0 | 2 | 0 | 0 | 1.000 | 2.000 |
| 2024 | Advanced A | MIDW | Cedar Rapids Kernels | P | 22 | 4 | 2 | 0 | 0 | 1.000 | .273 |
| 2025 | AAA | IL | St. Paul Saints | P | 7 | 1 | 0 | 0 | 0 | 1.000 | .143 |
| 2025 | AA | TL | Wichita Wind Surge | P | 24 | 1 | 3 | 6 | 0 | .400 | .167 |
| 2026 | AAA | IL | St. Paul Saints | P | 24 | 4 | 6 | 1 | 0 | .909 | .417 |
| 2026 | AAA | IL | Buffalo Bisons | P | 1 | 0 | 0 | 0 | 0 | .000 | |
| Totals | 60 | 7 | 11 | 6 | 0 | .750 | .300 |
Minor League Service:
| Year | Level | League | Team | Affiliation | First Appearance | Final Appearance |
|---|---|---|---|---|---|---|
| 2022 | R | Florida Complex League | Twins | MIN | August 13, 2022 | August 20, 2022 |
| 2023 | R | Florida Complex League | Twins | MIN | June 10, 2023 | August 5, 2023 |
| 2023 | A | Florida State League | Fort Myers Mighty Mussels | MIN | July 9, 2023 | September 1, 2023 |
| 2023 | Advanced A | Midwest League | Cedar Rapids Kernels | MIN | September 9, 2023 | September 9, 2023 |
| 2024 | Advanced A | Midwest League | Cedar Rapids Kernels | MIN | April 6, 2024 | September 4, 2024 |
| 2025 | AA | Texas League | Wichita Wind Surge | MIN | April 6, 2025 | July 31, 2025 |
| 2025 | AAA | International League | St. Paul Saints | MIN | August 6, 2025 | September 17, 2025 |
| 2026 | AAA | International League | St. Paul Saints | |||
| 2026 | AAA | International League | Buffalo Bisons |
Persons data from the Chadwick Baseball Bureau are Copyright Chadwick Baseball Bureau, and are made available under the Open Data Commons Attribution License.
