Last with Detroit Tigers · SS · No longer on a 40-man roster
Hernán Pérez has an estimated 6 years and 30 days of major league service time — 6.030 in the notation clubs use, from 1062 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2012 | Detroit Tigers | 2 | 0.002 | From transactions |
| 2013 | Detroit Tigers | 62 | 0.064 | From transactions |
| 2014 | Detroit Tigers | 31 | 0.095 | From transactions |
| 2015 | Detroit Tigers, Milwaukee Brewers | 172 | 1.095 | From transactions |
| 2016 | Milwaukee Brewers | 158 | 2.081 | From transactions |
| 2017 | Milwaukee Brewers | 172 | 3.081 | Carried forward |
| 2018 | Milwaukee Brewers | 172 | 4.081 | Carried forward |
| 2019 | Milwaukee Brewers | 152 | 5.061 | From transactions |
| 2020 | Chicago Cubs | 108 | 5.169 | From transactions |
| 2021 | Washington Nationals | 33 | 6.030 | 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.