Last with Houston Astros · 3B · No longer on a 40-man roster
J.D. Davis has an estimated 6 years and 110 days of major league service time — 6.110 in the notation clubs use, from 1142 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2017 | Houston Astros | 58 | 0.058 | From transactions |
| 2018 | Houston Astros | 80 | 0.138 | From transactions |
| 2019 | New York Mets | 172 | 1.138 | From transactions |
| 2020 | New York Mets | 172 | 2.138 | Carried forward |
| 2021 | New York Mets | 172 | 3.138 | From transactions |
| 2022 | New York Mets, San Francisco Giants | 172 | 4.138 | From transactions |
| 2023 | San Francisco Giants | 172 | 5.138 | From transactions |
| 2024 | Oakland Athletics, New York Yankees | 125 | 6.091 | From transactions |
| 2025 | Los Angeles Angels | 19 | 6.110 | 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.