Last with Detroit Tigers · P · No longer on a 40-man roster
Buck Farmer has an estimated 7 years and 110 days of major league service time — 7.110 in the notation clubs use, from 1314 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2014 | Detroit Tigers | 29 | 0.029 | From transactions |
| 2015 | Detroit Tigers | 80 | 0.109 | From transactions |
| 2016 | Detroit Tigers | 76 | 1.013 | From transactions |
| 2017 | Detroit Tigers | 52 | 1.065 | From transactions |
| 2018 | Detroit Tigers | 172 | 2.065 | Carried forward |
| 2019 | Detroit Tigers | 172 | 3.065 | Carried forward |
| 2020 | Detroit Tigers | 172 | 4.065 | From transactions |
| 2021 | Detroit Tigers | 99 | 4.164 | From transactions |
| 2022 | Cincinnati Reds | 118 | 5.110 | From transactions |
| 2023 | Cincinnati Reds | 172 | 6.110 | From transactions |
| 2024 | Cincinnati Reds | 172 | 7.110 | 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.