Last with New York Yankees · P · No longer on a 40-man roster
Mark Melancon has an estimated 12 years and 103 days of major league service time — 12.103 in the notation clubs use, from 2167 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2009 | New York Yankees | 78 | 0.078 | From transactions |
| 2010 | Houston Astros, New York Yankees | 60 | 0.138 | From transactions |
| 2011 | Houston Astros | 172 | 1.138 | From transactions |
| 2012 | Boston Red Sox | 137 | 2.103 | From transactions |
| 2013 | Pittsburgh Pirates | 172 | 3.103 | Carried forward |
| 2014 | Pittsburgh Pirates | 172 | 4.103 | Carried forward |
| 2015 | Pittsburgh Pirates | 172 | 5.103 | Carried forward |
| 2016 | Washington Nationals, Pittsburgh Pirates | 172 | 6.103 | From transactions |
| 2017 | San Francisco Giants | 172 | 7.103 | From transactions |
| 2018 | San Francisco Giants | 172 | 8.103 | From transactions |
| 2019 | San Francisco Giants, Atlanta Braves | 172 | 9.103 | From transactions |
| 2020 | Atlanta Braves | 172 | 10.103 | From transactions |
| 2021 | San Diego Padres | 172 | 11.103 | From transactions |
| 2022 | Arizona Diamondbacks | 172 | 12.103 | 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.