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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 %) |
Stats | Splits | Playoffs | Positions | Improvements | Past Skills | Awards | Fielding | Game Log
| Year | Vs | G | AB | H | 2B | 3B | HR | RBI | BB | SO | OPS | OBP | SLG | AVG |
| 2020 | AHP | 30 | 63 | 9 | 0 | 1 | 1 | 5 | 5 | 12 | .425 | .203 | .222 | .143 |
| 2020 | HHP | 22 | 45 | 10 | 1 | 0 | 0 | 5 | 4 | 7 | .530 | .286 | .244 | .222 |
| 2020 | LHP | 9 | 10 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | .282 | .182 | .100 | .100 |
| 2020 | RHP | 49 | 98 | 18 | 1 | 1 | 1 | 10 | 8 | 18 | .488 | .243 | .245 | .184 |
| 2021 | AHP | 22 | 55 | 13 | 3 | 0 | 0 | 6 | 2 | 11 | .554 | .263 | .291 | .236 |
| 2021 | HHP | 25 | 66 | 9 | 2 | 0 | 0 | 2 | 3 | 10 | .352 | .186 | .167 | .136 |
| 2021 | LHP | 11 | 9 | 2 | 1 | 0 | 0 | 2 | 2 | 2 | .697 | .364 | .333 | .222 |
| 2021 | RHP | 43 | 112 | 20 | 4 | 0 | 0 | 6 | 3 | 19 | .421 | .207 | .214 | .179 |
| 2024 | AHP | 7 | 6 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .143 | .143 | .000 | .000 |
| 2024 | HHP | 9 | 12 | 3 | 0 | 0 | 0 | 2 | 0 | 1 | .500 | .250 | .250 | .250 |
| 2024 | LHP | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 |
| 2024 | RHP | 16 | 16 | 3 | 0 | 0 | 0 | 2 | 1 | 1 | .423 | .235 | .188 | .188 |
| 2025 | AHP | 22 | 25 | 3 | 0 | 0 | 1 | 3 | 0 | 5 | .360 | .120 | .240 | .120 |
| 2025 | HHP | 20 | 25 | 6 | 1 | 0 | 0 | 0 | 1 | 4 | .549 | .269 | .280 | .240 |
| 2025 | LHP | 17 | 16 | 3 | 0 | 0 | 1 | 3 | 1 | 3 | .610 | .235 | .375 | .188 |
| 2025 | RHP | 21 | 34 | 6 | 1 | 0 | 0 | 0 | 0 | 6 | .382 | .176 | .206 | .176 |
| 2026 | AHP | 22 | 20 | 5 | 2 | 0 | 0 | 5 | 4 | 4 | .725 | .375 | .350 | .250 |
| 2026 | HHP | 10 | 13 | 5 | 0 | 0 | 0 | 0 | 0 | 3 | .769 | .385 | .385 | .385 |
| 2026 | LHP | 6 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | .000 | .000 | .000 | .000 |
| 2026 | RHP | 26 | 27 | 10 | 2 | 0 | 0 | 4 | 4 | 6 | .896 | .452 | .444 | .370 |
| 2027 | AHP | 14 | 18 | 3 | 0 | 0 | 0 | 0 | 2 | 2 | .417 | .250 | .167 | .167 |
| 2027 | HHP | 17 | 22 | 5 | 0 | 0 | 1 | 4 | 5 | 6 | .734 | .370 | .364 | .227 |
| 2027 | LHP | 11 | 10 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | .231 | .231 | .000 | .000 |
| 2027 | RHP | 22 | 30 | 8 | 0 | 0 | 1 | 4 | 4 | 5 | .720 | .353 | .367 | .267 |
| Total | AHP | 117 | 187 | 33 | 5 | 1 | 2 | 19 | 14 | 34 | .479 | .233 | .246 | .176 |
| Total | HHP | 103 | 183 | 38 | 4 | 0 | 1 | 13 | 13 | 31 | .510 | .264 | .246 | .208 |
| Total | LHP | 56 | 53 | 6 | 1 | 0 | 1 | 6 | 7 | 10 | .405 | .217 | .189 | .113 |
| Total | RHP | 177 | 317 | 65 | 8 | 1 | 2 | 26 | 20 | 55 | .509 | .254 | .256 | .205 |
| Total | 222 | 370 | 71 | 9 | 1 | 3 | 32 | 27 | 65 | .494 | .248 | .246 | .192 |
| 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. |