Last with Boston Red Sox · CF · No longer on a 40-man roster
Jackie Bradley Jr. has an estimated 9 years and 50 days of major league service time — 9.050 in the notation clubs use, from 1598 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2013 | Boston Red Sox | 57 | 0.057 | From transactions |
| 2014 | Boston Red Sox | 170 | 1.055 | From transactions |
| 2015 | Boston Red Sox | 89 | 1.144 | From transactions |
| 2016 | Boston Red Sox | 172 | 2.144 | From transactions |
| 2017 | Boston Red Sox | 172 | 3.144 | From transactions |
| 2018 | Boston Red Sox | 172 | 4.144 | Carried forward |
| 2019 | Boston Red Sox | 172 | 5.144 | Carried forward |
| 2020 | Boston Red Sox | 172 | 6.144 | From transactions |
| 2021 | Milwaukee Brewers | 172 | 7.144 | From transactions |
| 2022 | Boston Red Sox, Toronto Blue Jays | 172 | 8.144 | From transactions |
| 2023 | Kansas City Royals | 78 | 9.050 | 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.