Last with Minnesota Twins · P · No longer on a 40-man roster
Tyler Duffey has an estimated 6 years and 83 days of major league service time — 6.083 in the notation clubs use, from 1115 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2015 | Minnesota Twins | 56 | 0.056 | From transactions |
| 2016 | Minnesota Twins | 151 | 1.035 | From transactions |
| 2017 | Minnesota Twins | 172 | 2.035 | Carried forward |
| 2018 | Minnesota Twins | 56 | 2.091 | From transactions |
| 2019 | Minnesota Twins | 149 | 3.068 | From transactions |
| 2020 | Minnesota Twins | 172 | 4.068 | Carried forward |
| 2021 | Minnesota Twins | 172 | 5.068 | From transactions |
| 2022 | Minnesota Twins | 120 | 6.016 | From transactions |
| 2023 | Chicago Cubs | 2 | 6.018 | From transactions |
| 2024 | Kansas City Royals | 65 | 6.083 | 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.