Last with St. Louis Cardinals · P · No longer on a 40-man roster
Caleb Ferguson has an estimated 8 years and 72 days of major league service time — 8.072 in the notation clubs use, from 1448 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2018 | Los Angeles Dodgers | 113 | 0.113 | From transactions |
| 2019 | Los Angeles Dodgers | 153 | 1.094 | From transactions |
| 2020 | Los Angeles Dodgers | 172 | 2.094 | From transactions |
| 2021 | Los Angeles Dodgers | 172 | 3.094 | From transactions |
| 2022 | Los Angeles Dodgers | 166 | 4.088 | From transactions |
| 2023 | Los Angeles Dodgers | 172 | 5.088 | From transactions |
| 2024 | Houston Astros, New York Yankees | 172 | 6.088 | From transactions |
| 2025 | Pittsburgh Pirates, Seattle Mariners | 172 | 7.088 | From transactions |
| 2026 | Cincinnati Reds, St. Louis Cardinals | 156 | 8.072 | 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.