Last with Washington Nationals · RF · No longer on a 40-man roster
Michael A. Taylor has an estimated 10 years and 135 days of major league service time — 10.135 in the notation clubs use, from 1855 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2014 | Washington Nationals | 36 | 0.036 | From transactions |
| 2015 | Washington Nationals | 172 | 1.036 | From transactions |
| 2016 | Washington Nationals | 144 | 2.008 | From transactions |
| 2017 | Washington Nationals | 172 | 3.008 | From transactions |
| 2018 | Washington Nationals | 172 | 4.008 | Carried forward |
| 2019 | Washington Nationals | 127 | 4.135 | From transactions |
| 2020 | Washington Nationals | 172 | 5.135 | From transactions |
| 2021 | Kansas City Royals | 172 | 6.135 | From transactions |
| 2022 | Kansas City Royals | 172 | 7.135 | From transactions |
| 2023 | Minnesota Twins | 172 | 8.135 | From transactions |
| 2024 | Pittsburgh Pirates | 172 | 9.135 | From transactions |
| 2025 | Chicago White Sox | 172 | 10.135 | 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.