Last with Chicago White Sox · RF · No longer on a 40-man roster
Trayce Thompson has an estimated 3 years and 168 days of major league service time — 3.168 in the notation clubs use, from 684 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2015 | Chicago White Sox | 63 | 0.063 | From transactions |
| 2016 | Los Angeles Dodgers | 172 | 1.063 | From transactions |
| 2017 | Los Angeles Dodgers | 59 | 1.122 | From transactions |
| 2018 | Oakland Athletics, Chicago White Sox | 78 | 2.028 | From transactions |
| 2019 | Oakland Athletics, Chicago White Sox | 0 | 2.028 | Carried forward |
| 2020 | Arizona Diamondbacks | 0 | 2.028 | From transactions |
| 2021 | Chicago Cubs | 20 | 2.048 | From transactions |
| 2022 | Los Angeles Dodgers, San Diego Padres | 120 | 2.168 | From transactions |
| 2023 | Los Angeles Dodgers, Chicago White Sox | 172 | 3.168 | 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.