Jack Weisenburger
John Edward Weisenburger III
Born: October 8, 1997
Rockford, MI US
Primary Position: Pitcher
Bats: Right
Throws: Right
Height: 6'3"
Weight: 220
Draft: Round 20 (2019 June Amateur Draft, Oakland Athletics)
School: Michigan
Career: 2019-2026
Jack Weisenburger has compiled a career record of 6 wins and 15 losses, with 13 saves, and a 4.64 ERA in his 113-game pitching career with the Athletics Gold, Lansing Lugnuts, Midland RockHounds, Athletics, Mesa Solar Sox, Hagerstown Flying Boxcars and Syracuse Mets. He began playing during the 2019 season and has taken the field during the 2026 campaign.
 Athletics Gold |
 Lansing Lugnuts |
 Midland RockHounds |
 Mesa Solar Sox |
 Hagerstown Flying Boxcars |
 Syracuse Mets |
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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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | R | ARIZ | Athletics Gold | 0 | 1 | .000 | 3.00 | 11 | 1 | 7 | 0 | 0 | 4 | 15.0 | 7 | 6 | 5 | 0 | 10 | 0 | 28 | 1 | 0 | 7 | 61 |
| 2021 | Advanced A | HACE | Lansing Lugnuts | 0 | 1 | .000 | 1.76 | 13 | 0 | 10 | 0 | 0 | 4 | 15.3 | 9 | 3 | 3 | 0 | 4 | 0 | 26 | 2 | 2 | 1 | 59 |
| 2021 | AA | AACE | Midland RockHounds | 4 | 0 | 1.000 | 4.58 | 28 | 0 | 6 | 0 | 0 | 1 | 37.3 | 37 | 20 | 19 | 5 | 32 | 1 | 48 | 1 | 0 | 9 | 178 |
| 2022 | AA | TL | Midland RockHounds | 1 | 0 | 1.000 | 4.82 | 8 | 0 | 6 | 0 | 0 | 3 | 9.3 | 6 | 5 | 5 | 2 | 3 | 0 | 11 | 0 | 0 | 1 | 37 |
| 2023 | AA | TL | Midland RockHounds | 0 | 2 | .000 | 3.78 | 13 | 1 | 2 | 0 | 0 | 1 | 16.7 | 11 | 7 | 7 | 1 | 11 | 0 | 18 | 0 | 0 | 2 | 68 |
| 2023 | Fall | AZFL | Mesa Solar Sox | 1 | 0 | 1.000 | 0.00 | 3 | 0 | 0 | 0 | 0 | 0 | 2.0 | 2 | 0 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 11 |
| 2023 | R | AZCL | Athletics | 0 | 0 | 2.25 | 3 | 2 | 0 | 0 | 0 | 0 | 4.0 | 5 | 2 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 1 | 17 | |
| 2024 | AA | TL | Midland RockHounds | 0 | 0 | 1.35 | 8 | 0 | 2 | 0 | 0 | 0 | 6.7 | 4 | 1 | 1 | 0 | 9 | 0 | 10 | 1 | 1 | 0 | 34 | |
| 2025 | Ind | ATLL | Hagerstown Flying Boxcars | 1 | 11 | .083 | 5.66 | 32 | 15 | 1 | 1 | 0 | 0 | 103.3 | 111 | 70 | 65 | 12 | 54 | 0 | 106 | 6 | 0 | 5 | 469 |
| 2026 | AAA | IL | Syracuse Mets | 0 | 1 | .000 | 6.75 | 1 | 1 | 0 | 0 | 0 | 0 | 4.0 | 3 | 3 | 3 | 0 | 2 | 0 | 4 | 1 | 0 | 1 | 16 |
| Totals | 6 | 15 | .286 | 4.64 | 113 | 17 | 34 | 1 | 0 | 13 | 203.7 | 185 | 112 | 105 | 20 | 123 | 1 | 247 | 11 | 3 | 25 | 906 |
Fielding:
| Year | Level | Lg | Team | Pos | GP | PO | A | E | DP | Fld% | RF/G |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2019 | R | ARIZ | Athletics Gold | P | 11 | 0 | 0 | 0 | 0 | .000 | |
| 2021 | AA | AACE | Midland RockHounds | P | 28 | 1 | 3 | 0 | 0 | 1.000 | .143 |
| 2021 | Advanced A | HACE | Lansing Lugnuts | P | 13 | 2 | 1 | 0 | 1 | 1.000 | .231 |
| 2022 | AA | TL | Midland RockHounds | P | 8 | 3 | 0 | 0 | 0 | 1.000 | .375 |
| 2023 | R | AZCL | Athletics | P | 3 | 0 | 0 | 0 | 0 | .000 | |
| 2023 | Fall | AZFL | Mesa Solar Sox | P | 3 | 0 | 0 | 0 | 0 | .000 | |
| 2023 | AA | TL | Midland RockHounds | P | 13 | 0 | 2 | 0 | 0 | 1.000 | .154 |
| 2024 | AA | TL | Midland RockHounds | P | 8 | 0 | 0 | 0 | 0 | .000 | |
| 2025 | Ind | ATLL | Hagerstown Flying Boxcars | P | 32 | 2 | 13 | 4 | 0 | .789 | .469 |
| 2026 | AAA | IL | Syracuse Mets | P | 1 | 0 | 0 | 0 | 0 | .000 | |
| Totals | 105 | 5 | 19 | 4 | 1 | .857 | .229 |
Minor League Service:
| Year | Level | League | Team | Affiliation | First Appearance | Final Appearance |
|---|---|---|---|---|---|---|
| 2019 | R | Arizona League | Athletics Gold | July 18, 2019 | August 25, 2019 | |
| 2021 | Advanced A | High-A Central | Lansing Lugnuts | OAK | May 5, 2021 | June 13, 2021 |
| 2021 | AA | AA Central | Midland RockHounds | OAK | June 15, 2021 | September 18, 2021 |
| 2022 | AA | Texas League | Midland RockHounds | OAK | April 8, 2022 | May 12, 2022 |
| 2023 | R | Arizona Complex League | Athletics | OAK | July 22, 2023 | July 28, 2023 |
| 2023 | AA | Texas League | Midland RockHounds | OAK | August 2, 2023 | September 17, 2023 |
| 2023 | Fall | Arizona Fall League | Mesa Solar Sox | October 2, 2023 | October 9, 2023 | |
| 2024 | AA | Texas League | Midland RockHounds | OAK | April 6, 2024 | May 8, 2024 |
| 2025 | Ind | Atlantic League | Hagerstown Flying Boxcars | April 26, 2025 | September 16, 2025 | |
| 2026 | AAA | International League | Syracuse Mets |
Persons data from the Chadwick Baseball Bureau are Copyright Chadwick Baseball Bureau, and are made available under the Open Data Commons Attribution License.
