Last with Toronto Blue Jays · P · No longer on a 40-man roster
Thomas Hatch has an estimated 2 years and 154 days of major league service time — 2.154 in the notation clubs use, from 498 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2020 | Toronto Blue Jays | 172 | 1.000 | From transactions |
| 2021 | Toronto Blue Jays | 121 | 1.121 | From transactions |
| 2022 | Toronto Blue Jays | 1 | 1.122 | From transactions |
| 2023 | Pittsburgh Pirates, Toronto Blue Jays | 65 | 2.015 | From transactions |
| 2024 | Pittsburgh Pirates, Toronto Blue Jays | 0 | 2.015 | Carried forward |
| 2025 | Kansas City Royals, Minnesota Twins | 139 | 2.154 | 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.