Last with Oakland Athletics · 3B · No longer on a 40-man roster
Josh Donaldson has an estimated 11 years and 129 days of major league service time — 11.129 in the notation clubs use, from 2021 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2010 | Oakland Athletics | 36 | 0.036 | From transactions |
| 2011 | Oakland Athletics | 2 | 0.038 | From transactions |
| 2012 | Oakland Athletics | 91 | 0.129 | From transactions |
| 2013 | Oakland Athletics | 172 | 1.129 | Carried forward |
| 2014 | Oakland Athletics | 172 | 2.129 | From transactions |
| 2015 | Toronto Blue Jays | 172 | 3.129 | Carried forward |
| 2016 | Toronto Blue Jays | 172 | 4.129 | Carried forward |
| 2017 | Toronto Blue Jays | 172 | 5.129 | From transactions |
| 2018 | Cleveland Indians, Toronto Blue Jays | 172 | 6.129 | From transactions |
| 2019 | Atlanta Braves | 172 | 7.129 | From transactions |
| 2020 | Minnesota Twins | 172 | 8.129 | From transactions |
| 2021 | Minnesota Twins | 172 | 9.129 | From transactions |
| 2022 | New York Yankees | 172 | 10.129 | From transactions |
| 2023 | New York Yankees, Milwaukee Brewers | 172 | 11.129 | 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.