Last with Arizona Diamondbacks · 3B · No longer on a 40-man roster
Jake Lamb has an estimated 8 years and 8 days of major league service time — 8.008 in the notation clubs use, from 1384 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2014 | Arizona Diamondbacks | 53 | 0.053 | From transactions |
| 2015 | Arizona Diamondbacks | 172 | 1.053 | From transactions |
| 2016 | Arizona Diamondbacks | 172 | 2.053 | From transactions |
| 2017 | Arizona Diamondbacks | 172 | 3.053 | Carried forward |
| 2018 | Arizona Diamondbacks | 172 | 4.053 | From transactions |
| 2019 | Arizona Diamondbacks | 172 | 5.053 | From transactions |
| 2020 | Arizona Diamondbacks, Oakland Athletics | 172 | 6.053 | From transactions |
| 2021 | Toronto Blue Jays, Chicago White Sox | 172 | 7.053 | From transactions |
| 2022 | Los Angeles Dodgers, Seattle Mariners | 85 | 7.138 | From transactions |
| 2023 | Los Angeles Angels | 42 | 8.008 | 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.