Last with Cincinnati Reds · SS · No longer on a 40-man roster
Didi Gregorius has an estimated 9 years and 105 days of major league service time — 9.105 in the notation clubs use, from 1653 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2012 | Cincinnati Reds | 33 | 0.033 | From transactions |
| 2013 | Arizona Diamondbacks | 172 | 1.033 | From transactions |
| 2014 | Arizona Diamondbacks | 125 | 1.158 | From transactions |
| 2015 | New York Yankees | 172 | 2.158 | Carried forward |
| 2016 | New York Yankees | 172 | 3.158 | Carried forward |
| 2017 | New York Yankees | 172 | 4.158 | From transactions |
| 2018 | New York Yankees | 172 | 5.158 | From transactions |
| 2019 | New York Yankees | 172 | 6.158 | From transactions |
| 2020 | Philadelphia Phillies | 172 | 7.158 | From transactions |
| 2021 | Philadelphia Phillies | 172 | 8.158 | From transactions |
| 2022 | Philadelphia Phillies | 119 | 9.105 | 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.