Last with Philadelphia Phillies · 1B · No longer on a 40-man roster
Darin Ruf has an estimated 6 years and 140 days of major league service time — 6.140 in the notation clubs use, from 1172 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2012 | Philadelphia Phillies | 24 | 0.024 | From transactions |
| 2013 | Philadelphia Phillies | 87 | 0.111 | From transactions |
| 2014 | Philadelphia Phillies | 134 | 1.073 | From transactions |
| 2015 | Philadelphia Phillies | 172 | 2.073 | From transactions |
| 2016 | Philadelphia Phillies | 71 | 2.144 | From transactions |
| 2017 | Los Angeles Dodgers | 0 | 2.144 | From transactions |
| 2018 | Los Angeles Dodgers | 0 | 2.144 | Carried forward |
| 2019 | Los Angeles Dodgers | 0 | 2.144 | Carried forward |
| 2020 | San Francisco Giants | 172 | 3.144 | From transactions |
| 2021 | San Francisco Giants | 172 | 4.144 | From transactions |
| 2022 | New York Mets, San Francisco Giants | 172 | 5.144 | From transactions |
| 2023 | San Francisco Giants, Milwaukee Brewers | 168 | 6.140 | 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.