Last with Atlanta Braves · RF · No longer on a 40-man roster
Jason Heyward has an estimated 15 years and 95 days of major league service time — 15.095 in the notation clubs use, from 2675 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2010 | Atlanta Braves | 172 | 1.000 | From transactions |
| 2011 | Atlanta Braves | 172 | 2.000 | From transactions |
| 2012 | Atlanta Braves | 172 | 3.000 | Carried forward |
| 2013 | Atlanta Braves | 172 | 4.000 | From transactions |
| 2014 | Atlanta Braves | 172 | 5.000 | From transactions |
| 2015 | St. Louis Cardinals | 172 | 6.000 | From transactions |
| 2016 | Chicago Cubs | 172 | 7.000 | Carried forward |
| 2017 | Chicago Cubs | 172 | 8.000 | From transactions |
| 2018 | Chicago Cubs | 172 | 9.000 | From transactions |
| 2019 | Chicago Cubs | 172 | 10.000 | Carried forward |
| 2020 | Chicago Cubs | 172 | 11.000 | Carried forward |
| 2021 | Chicago Cubs | 172 | 12.000 | From transactions |
| 2022 | Chicago Cubs | 172 | 13.000 | From transactions |
| 2023 | Los Angeles Dodgers | 172 | 14.000 | From transactions |
| 2024 | Houston Astros, Los Angeles Dodgers | 172 | 15.000 | From transactions |
| 2025 | San Diego Padres | 95 | 15.095 | 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.