Arizona Diamondbacks · P · Free agency eligible
Dennis Santana has an estimated 6 years and 86 days of major league service time — 6.086 in the notation clubs use, from 1118 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2018 | Los Angeles Dodgers | 125 | 0.125 | From transactions |
| 2019 | Los Angeles Dodgers | 7 | 0.132 | From transactions |
| 2020 | Los Angeles Dodgers | 142 | 1.102 | From transactions |
| 2021 | Los Angeles Dodgers, Texas Rangers | 146 | 2.076 | From transactions |
| 2022 | Texas Rangers | 172 | 3.076 | From transactions |
| 2023 | New York Mets | 19 | 3.095 | From transactions |
| 2024 | Pittsburgh Pirates, New York Yankees | 172 | 4.095 | From transactions |
| 2025 | Pittsburgh Pirates | 172 | 5.095 | From transactions |
| 2026 | Arizona Diamondbacks, Pittsburgh Pirates | 163 | 6.086 | 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.