Chicago Cubs · P · Free agency eligible
David Peterson 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 |
|---|---|---|---|---|
| 2020 | New York Mets | 172 | 1.000 | From transactions |
| 2021 | New York Mets | 172 | 2.000 | From transactions |
| 2022 | New York Mets | 123 | 2.123 | From transactions |
| 2023 | New York Mets | 135 | 3.086 | From transactions |
| 2024 | New York Mets | 172 | 4.086 | From transactions |
| 2025 | New York Mets | 172 | 5.086 | From transactions |
| 2026 | Chicago Cubs, New York Mets | 172 | 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.