Last with Chicago White Sox · P · No longer on a 40-man roster
Aaron Bummer has an estimated 8 years and 39 days of major league service time — 8.039 in the notation clubs use, from 1415 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2017 | Chicago White Sox | 67 | 0.067 | From transactions |
| 2018 | Chicago White Sox | 101 | 0.168 | From transactions |
| 2019 | Chicago White Sox | 155 | 1.151 | From transactions |
| 2020 | Chicago White Sox | 172 | 2.151 | From transactions |
| 2021 | Chicago White Sox | 172 | 3.151 | From transactions |
| 2022 | Chicago White Sox | 172 | 4.151 | From transactions |
| 2023 | Chicago White Sox | 172 | 5.151 | From transactions |
| 2024 | Atlanta Braves | 172 | 6.151 | Carried forward |
| 2025 | Atlanta Braves | 172 | 7.151 | From transactions |
| 2026 | Kansas City Royals, Atlanta Braves | 60 | 8.039 | From transactions |
172 days credit a full year, so a season adds at most 1.000 no matter how long a player is on a roster. 3.000 years reaches salary arbitration and 6.000 reaches free agency —
what every threshold unlocks.
This figure is an estimate reconstructed from public roster
transaction records. It is not an official MLB or MLBPA figure — those are
not published. See the
methodology.
Last updated 2026-10-12.
Independent project, not affiliated with or endorsed by Major League
Baseball or the MLBPA.