Last with Miami Marlins · P · No longer on a 40-man roster
José Ureña has an estimated 8 years and 161 days of major league service time — 8.161 in the notation clubs use, from 1537 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2015 | Miami Marlins | 111 | 0.111 | From transactions |
| 2016 | Miami Marlins | 100 | 1.039 | From transactions |
| 2017 | Miami Marlins | 172 | 2.039 | Carried forward |
| 2018 | Miami Marlins | 172 | 3.039 | From transactions |
| 2019 | Miami Marlins | 172 | 4.039 | From transactions |
| 2020 | Miami Marlins | 172 | 5.039 | From transactions |
| 2021 | Detroit Tigers | 172 | 6.039 | From transactions |
| 2022 | Colorado Rockies, Milwaukee Brewers | 117 | 6.156 | From transactions |
| 2023 | Colorado Rockies, Chicago White Sox | 51 | 7.035 | From transactions |
| 2024 | Texas Rangers | 172 | 8.035 | From transactions |
| 2025 | Los Angeles Angels, Los Angeles Dodgers, New York Mets, Toronto Blue Jays, Minnesota Twins | 126 | 8.161 | 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.