Texas Rangers · C · Free agency eligible
Danny Jansen has an estimated 8 years and 51 days of major league service time — 8.051 in the notation clubs use, from 1427 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2018 | Toronto Blue Jays | 51 | 0.051 | From transactions |
| 2019 | Toronto Blue Jays | 172 | 1.051 | Carried forward |
| 2020 | Toronto Blue Jays | 172 | 2.051 | Carried forward |
| 2021 | Toronto Blue Jays | 172 | 3.051 | From transactions |
| 2022 | Toronto Blue Jays | 172 | 4.051 | From transactions |
| 2023 | Toronto Blue Jays | 172 | 5.051 | From transactions |
| 2024 | Boston Red Sox, Toronto Blue Jays | 172 | 6.051 | From transactions |
| 2025 | Tampa Bay Rays, Milwaukee Brewers | 172 | 7.051 | From transactions |
| 2026 | Texas Rangers | 172 | 8.051 | 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.