Last with Arizona Diamondbacks · DH · No longer on a 40-man roster
Matt Davidson has an estimated 5 years and 136 days of major league service time — 5.136 in the notation clubs use, from 996 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2013 | Arizona Diamondbacks | 43 | 0.043 | From transactions |
| 2014 | Chicago White Sox | 1 | 0.044 | From transactions |
| 2015 | Chicago White Sox | 0 | 0.044 | From transactions |
| 2016 | Chicago White Sox | 95 | 0.139 | From transactions |
| 2017 | Chicago White Sox | 172 | 1.139 | From transactions |
| 2018 | Chicago White Sox | 172 | 2.139 | From transactions |
| 2019 | Texas Rangers | 172 | 3.139 | From transactions |
| 2020 | Cincinnati Reds | 130 | 4.097 | From transactions |
| 2021 | Los Angeles Dodgers | 172 | 5.097 | From transactions |
| 2022 | Arizona Diamondbacks, Oakland Athletics | 39 | 5.136 | 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.