Chicago White Sox · DH · Free agency eligible
Tommy Pham has an estimated 10 years and 165 days of major league service time — 10.165 in the notation clubs use, from 1885 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2014 | St. Louis Cardinals | 21 | 0.021 | From transactions |
| 2015 | St. Louis Cardinals | 127 | 0.148 | From transactions |
| 2016 | St. Louis Cardinals | 151 | 1.127 | From transactions |
| 2017 | St. Louis Cardinals | 150 | 2.105 | From transactions |
| 2018 | St. Louis Cardinals, Tampa Bay Rays | 172 | 3.105 | From transactions |
| 2019 | Tampa Bay Rays | 172 | 4.105 | From transactions |
| 2020 | San Diego Padres | 172 | 5.105 | From transactions |
| 2021 | San Diego Padres | 172 | 6.105 | From transactions |
| 2022 | Boston Red Sox, Cincinnati Reds | 172 | 7.105 | From transactions |
| 2023 | Arizona Diamondbacks, New York Mets | 172 | 8.105 | From transactions |
| 2024 | Kansas City Royals, St. Louis Cardinals, Chicago White Sox | 172 | 9.105 | From transactions |
| 2025 | Pittsburgh Pirates | 172 | 10.105 | From transactions |
| 2026 | New York Mets, Chicago White Sox | 60 | 10.165 | 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.