Last with Philadelphia Phillies · P · No longer on a 40-man roster
Jake Diekman has an estimated 12 years and 9 days of major league service time — 12.009 in the notation clubs use, from 2073 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2012 | Philadelphia Phillies | 114 | 0.114 | From transactions |
| 2013 | Philadelphia Phillies | 110 | 1.052 | From transactions |
| 2014 | Philadelphia Phillies | 172 | 2.052 | Carried forward |
| 2015 | Texas Rangers, Philadelphia Phillies | 170 | 3.050 | From transactions |
| 2016 | Texas Rangers | 172 | 4.050 | From transactions |
| 2017 | Texas Rangers | 172 | 5.050 | From transactions |
| 2018 | Arizona Diamondbacks, Texas Rangers | 172 | 6.050 | From transactions |
| 2019 | Kansas City Royals, Oakland Athletics | 172 | 7.050 | From transactions |
| 2020 | Oakland Athletics | 172 | 8.050 | Carried forward |
| 2021 | Oakland Athletics | 172 | 9.050 | From transactions |
| 2022 | Boston Red Sox, Chicago White Sox | 172 | 10.050 | From transactions |
| 2023 | Tampa Bay Rays, Chicago White Sox | 172 | 11.050 | From transactions |
| 2024 | New York Mets | 131 | 12.009 | 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.