Last with Houston Astros · P · No longer on a 40-man roster
Seth Martinez has an estimated 2 years and 73 days of major league service time — 2.073 in the notation clubs use, from 417 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2021 | Houston Astros | 6 | 0.006 | From transactions |
| 2022 | Houston Astros | 117 | 0.123 | From transactions |
| 2023 | Houston Astros | 128 | 1.079 | From transactions |
| 2024 | Houston Astros | 140 | 2.047 | From transactions |
| 2025 | Miami Marlins | 23 | 2.070 | From transactions |
| 2026 | Boston Red Sox | 3 | 2.073 | 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.