Last with Chicago White Sox · P · No longer on a 40-man roster
Tyler Gilbert has an estimated 2 years and 133 days of major league service time — 2.133 in the notation clubs use, from 477 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2021 | Arizona Diamondbacks | 62 | 0.062 | From transactions |
| 2022 | Arizona Diamondbacks | 99 | 0.161 | From transactions |
| 2023 | Arizona Diamondbacks | 43 | 1.032 | From transactions |
| 2024 | Philadelphia Phillies | 28 | 1.060 | From transactions |
| 2025 | Chicago White Sox | 172 | 2.060 | From transactions |
| 2026 | Chicago White Sox | 73 | 2.133 | 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.