Last with Washington Nationals · P · No longer on a 40-man roster
Tommy Milone has an estimated 9 years and 73 days of major league service time — 9.073 in the notation clubs use, from 1621 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2011 | Washington Nationals | 26 | 0.026 | From transactions |
| 2012 | Oakland Athletics | 172 | 1.026 | From transactions |
| 2013 | Oakland Athletics | 164 | 2.018 | From transactions |
| 2014 | Oakland Athletics, Minnesota Twins | 154 | 3.000 | From transactions |
| 2015 | Minnesota Twins | 150 | 3.150 | From transactions |
| 2016 | Minnesota Twins | 141 | 4.119 | From transactions |
| 2017 | New York Mets, Milwaukee Brewers | 172 | 5.119 | From transactions |
| 2018 | Washington Nationals | 158 | 6.105 | From transactions |
| 2019 | Seattle Mariners | 132 | 7.065 | From transactions |
| 2020 | Baltimore Orioles, Atlanta Braves | 172 | 8.065 | From transactions |
| 2021 | Toronto Blue Jays | 131 | 9.024 | From transactions |
| 2022 | Seattle Mariners | 47 | 9.071 | From transactions |
| 2023 | Seattle Mariners | 2 | 9.073 | 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.