Last with Detroit Tigers · SS · No longer on a 40-man roster
Zack Short has an estimated 2 years and 118 days of major league service time — 2.118 in the notation clubs use, from 462 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2021 | Detroit Tigers | 89 | 0.089 | From transactions |
| 2022 | Detroit Tigers | 13 | 0.102 | From transactions |
| 2023 | Detroit Tigers | 157 | 1.087 | From transactions |
| 2024 | Boston Red Sox, New York Mets, Atlanta Braves | 121 | 2.036 | From transactions |
| 2025 | Houston Astros | 30 | 2.066 | From transactions |
| 2026 | Detroit Tigers, New York Mets | 52 | 2.118 | 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.