Last with Milwaukee Brewers · P · No longer on a 40-man roster
J.P. Feyereisen has an estimated 3 years and 139 days of major league service time — 3.139 in the notation clubs use, from 655 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2020 | Milwaukee Brewers | 103 | 0.103 | From transactions |
| 2021 | Tampa Bay Rays, Milwaukee Brewers | 172 | 1.103 | From transactions |
| 2022 | Tampa Bay Rays | 172 | 2.103 | From transactions |
| 2023 | Los Angeles Dodgers | 172 | 3.103 | From transactions |
| 2024 | Los Angeles Dodgers | 27 | 3.130 | From transactions |
| 2025 | Arizona Diamondbacks, Los Angeles Dodgers | 9 | 3.139 | 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.