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| Name | Team | Age |
| George Mattern | Retired (2027, Age 36) | Died (2066, Age 75) |
| Drafted | Position | Bats/Throws |
| Round 4, Pick 59 (2013) |
SS | R/R |
| League | Option Years
|
Majors Service Time |
| Mordecai Brown League | 0 | 4 years (154 games) |
| Total Rating
|
Arm | Range |
| Contact vs R | Contact vs L | Speed |
| Power vs R | Power vs L | Bunting |
| Endurance | Velocity | Control |
| Leadership
|
Mentor vs RHP
|
Mentor vs LHP
|
| Health
|
Injured Days
|
Birthday |
| 0 | 6/16/1991 | |
| WS Rings | WS Appearances | LCS Appearances |
| 0 | 0 | 1 |
| Alt Pos (2B) | Alt Pos (---) | Alt Pos (---) |
| (58.1 %) | (0.0 %) | (0.0 %) |
| Alt Pos (---) | Alt Pos (---) | Alt Pos (3B) |
| (0.0 %) | (0.0 %) | (0.0 %) |
| Alt Pos (CF) | Alt Pos (RF) | |
| (0.0 %) | (0.0 %) |
Stats | Splits | Playoffs | Positions | Improvements | Past Skills | Awards | Fielding | Game Log
| Year | Team | C | 1B | 2B | 3B | SS | LF | CF | RF | PH |
| 2020 | MIL | 0 | 0 | 0 | 2 | 39 | 0 | 1 | 1 | 9 |
| 2021 | MIL | 0 | 0 | 9 | 0 | 30 | 0 | 0 | 1 | 7 |
| 2022 | MIL | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2024 | MIL | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 6 |
| 2025 | MIL | 0 | 0 | 0 | 0 | 27 | 0 | 0 | 1 | 14 |
| 2026 | MIL | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 13 |
| 2027 | MIL | 0 | 0 | 0 | 0 | 22 | 0 | 1 | 0 | 8 |
| Date | Transaction |
| 2027-11-01 | George Mattern has retired from the Milwaukee Night Owls |
| 2025-06-04 | The Milwaukee Night Owls have promoted George Mattern to the major league team. The Milwaukee Night Owls have sent Dwight Kolp to the minors. |
| 2024-07-16 | The Milwaukee Night Owls have designated George Mattern for assignment. |
| 2024-05-13 | George Mattern of the Milwaukee Night Owls is injured and is expected to be out 30 days. |
| 2024-03-31 | The Milwaukee Night Owls have promoted George Mattern to the major league team. |
| 2022-06-04 | The Milwaukee Night Owls have promoted Gary Smith to the major league team. The Milwaukee Night Owls have designated George Mattern for assignment. |
| 2022-05-31 | The Milwaukee Night Owls have promoted George Mattern to the major league team. The Milwaukee Night Owls have sent Roy Perring to the minors. |
| 2022-04-01 | The Milwaukee Night Owls have promoted George Somerville to the major league team. The Milwaukee Night Owls have designated George Mattern for assignment. |
| 2020-03-31 | The Milwaukee Night Owls have promoted George Mattern to the major league team. The Milwaukee Night Owls have designated Ben Campbell for assignment. |
| 2019-05-12 | The Milwaukee Night Owls have acquired George Mattern from the waiver wire. |
| 2017-04-05 | The Kansas City Kids have waived George Mattern. |
| 2016-06-11 | The Kansas City Kids have acquired George Mattern from the waiver wire. |
| 2016-04-04 | The Chicago Spicy Meatballs have waived George Mattern. |