Last with New York Mets · LF · No longer on a 40-man roster
Matthew den Dekker has an estimated 1 year and 92 days of major league service time — 1.092 in the notation clubs use, from 264 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2013 | New York Mets | 35 | 0.035 | From transactions |
| 2014 | New York Mets | 76 | 0.111 | From transactions |
| 2015 | Washington Nationals | 94 | 1.033 | From transactions |
| 2016 | Washington Nationals | 31 | 1.064 | From transactions |
| 2017 | Detroit Tigers | 12 | 1.076 | From transactions |
| 2018 | New York Mets | 16 | 1.092 | 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.