Last with Pittsburgh Pirates · P · No longer on a 40-man roster
Deolis Guerra has an estimated 4 years and 42 days of major league service time — 4.042 in the notation clubs use, from 730 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2015 | Pittsburgh Pirates | 94 | 0.094 | From transactions |
| 2016 | Los Angeles Angels | 130 | 1.052 | From transactions |
| 2017 | Los Angeles Angels | 77 | 1.129 | From transactions |
| 2018 | Texas Rangers, Milwaukee Brewers | 0 | 1.129 | From transactions |
| 2019 | Milwaukee Brewers | 2 | 1.131 | From transactions |
| 2020 | Philadelphia Phillies | 83 | 2.042 | From transactions |
| 2021 | Oakland Athletics | 172 | 3.042 | From transactions |
| 2022 | Oakland Athletics | 172 | 4.042 | 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.