Last with Cincinnati Reds · P · No longer on a 40-man roster
J.J. Hoover has an estimated 4 years and 143 days of major league service time — 4.143 in the notation clubs use, from 831 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2012 | Cincinnati Reds | 101 | 0.101 | From transactions |
| 2013 | Cincinnati Reds | 172 | 1.101 | Carried forward |
| 2014 | Cincinnati Reds | 172 | 2.101 | From transactions |
| 2015 | Cincinnati Reds | 172 | 3.101 | Carried forward |
| 2016 | Cincinnati Reds | 49 | 3.150 | From transactions |
| 2017 | Arizona Diamondbacks | 152 | 4.130 | From transactions |
| 2018 | Milwaukee Brewers | 13 | 4.143 | 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.