Last with Colorado Rockies · P · No longer on a 40-man roster
Tommy Kahnle has an estimated 11 years and 56 days of major league service time — 11.056 in the notation clubs use, from 1948 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2014 | Colorado Rockies | 172 | 1.000 | From transactions |
| 2015 | Colorado Rockies | 87 | 1.087 | From transactions |
| 2016 | Chicago White Sox | 100 | 2.015 | From transactions |
| 2017 | Chicago White Sox, New York Yankees | 172 | 3.015 | From transactions |
| 2018 | New York Yankees | 115 | 3.130 | From transactions |
| 2019 | New York Yankees | 172 | 4.130 | Carried forward |
| 2020 | New York Yankees | 172 | 5.130 | From transactions |
| 2021 | Los Angeles Dodgers | 172 | 6.130 | From transactions |
| 2022 | Los Angeles Dodgers | 172 | 7.130 | From transactions |
| 2023 | New York Yankees | 172 | 8.130 | From transactions |
| 2024 | New York Yankees | 172 | 9.130 | From transactions |
| 2025 | Detroit Tigers | 172 | 10.130 | From transactions |
| 2026 | Boston Red Sox | 98 | 11.056 | 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.