Last with Toronto Blue Jays · LF · No longer on a 40-man roster
Billy McKinney has an estimated 4 years and 80 days of major league service time — 4.080 in the notation clubs use, from 768 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2018 | Toronto Blue Jays, New York Yankees | 101 | 0.101 | From transactions |
| 2019 | Toronto Blue Jays | 142 | 1.071 | From transactions |
| 2020 | Toronto Blue Jays | 25 | 1.096 | From transactions |
| 2021 | Los Angeles Dodgers, New York Mets, Milwaukee Brewers | 172 | 2.096 | From transactions |
| 2022 | Oakland Athletics | 32 | 2.128 | From transactions |
| 2023 | New York Yankees | 118 | 3.074 | From transactions |
| 2024 | Pittsburgh Pirates | 170 | 4.072 | From transactions |
| 2025 | Texas Rangers | 8 | 4.080 | 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.