Last with Boston Red Sox · P · No longer on a 40-man roster
Félix Doubront has an estimated 5 years and 38 days of major league service time — 5.038 in the notation clubs use, from 898 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2010 | Boston Red Sox | 72 | 0.072 | From transactions |
| 2011 | Boston Red Sox | 46 | 0.118 | From transactions |
| 2012 | Boston Red Sox | 172 | 1.118 | From transactions |
| 2013 | Boston Red Sox | 172 | 2.118 | Carried forward |
| 2014 | Boston Red Sox, Chicago Cubs | 172 | 3.118 | From transactions |
| 2015 | Oakland Athletics, Toronto Blue Jays | 92 | 4.038 | From transactions |
| 2016 | Oakland Athletics | 172 | 5.038 | 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.