Last with Baltimore Orioles · P · No longer on a 40-man roster
T.J. McFarland has an estimated 9 years and 64 days of major league service time — 9.064 in the notation clubs use, from 1612 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2013 | Baltimore Orioles | 172 | 1.000 | Carried forward |
| 2014 | Baltimore Orioles | 145 | 1.145 | From transactions |
| 2015 | Baltimore Orioles | 92 | 2.065 | From transactions |
| 2016 | Baltimore Orioles | 113 | 3.006 | From transactions |
| 2017 | Arizona Diamondbacks | 158 | 3.164 | From transactions |
| 2018 | Arizona Diamondbacks | 172 | 4.164 | From transactions |
| 2019 | Arizona Diamondbacks | 172 | 5.164 | From transactions |
| 2020 | Oakland Athletics | 172 | 6.164 | From transactions |
| 2021 | St. Louis Cardinals | 172 | 7.164 | From transactions |
| 2022 | St. Louis Cardinals | 125 | 8.117 | From transactions |
| 2023 | New York Mets | 18 | 8.135 | From transactions |
| 2024 | Oakland Athletics | 0 | 8.135 | From transactions |
| 2025 | Oakland Athletics | 101 | 9.064 | 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.