Last with Milwaukee Brewers · P · No longer on a 40-man roster
Tyler Thornburg has an estimated 7 years and 18 days of major league service time — 7.018 in the notation clubs use, from 1222 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2012 | Milwaukee Brewers | 51 | 0.051 | From transactions |
| 2013 | Milwaukee Brewers | 98 | 0.149 | From transactions |
| 2014 | Milwaukee Brewers | 172 | 1.149 | From transactions |
| 2015 | Milwaukee Brewers | 83 | 2.060 | From transactions |
| 2016 | Milwaukee Brewers | 172 | 3.060 | From transactions |
| 2017 | Boston Red Sox | 172 | 4.060 | From transactions |
| 2018 | Boston Red Sox | 172 | 5.060 | From transactions |
| 2019 | Boston Red Sox | 112 | 6.000 | From transactions |
| 2020 | Cincinnati Reds | 125 | 6.125 | From transactions |
| 2021 | Cincinnati Reds | 0 | 6.125 | Carried forward |
| 2022 | Minnesota Twins, Atlanta Braves | 65 | 7.018 | 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.