Cleveland Guardians · P · Arbitration eligible
Colin Holderman has an estimated 4 years and 93 days of major league service time — 4.093 in the notation clubs use, from 781 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2022 | New York Mets, Pittsburgh Pirates | 138 | 0.138 | From transactions |
| 2023 | Pittsburgh Pirates | 172 | 1.138 | From transactions |
| 2024 | Pittsburgh Pirates | 172 | 2.138 | From transactions |
| 2025 | Pittsburgh Pirates | 139 | 3.105 | From transactions |
| 2026 | Cleveland Indians | 160 | 4.093 | 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.