Last with Cleveland Indians · P · No longer on a 40-man roster
Corey Kluber has an estimated 11 years and 71 days of major league service time — 11.071 in the notation clubs use, from 1963 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2011 | Cleveland Indians | 11 | 0.011 | From transactions |
| 2012 | Cleveland Indians | 63 | 0.074 | From transactions |
| 2013 | Cleveland Indians | 169 | 1.071 | From transactions |
| 2014 | Cleveland Indians | 172 | 2.071 | Carried forward |
| 2015 | Cleveland Indians | 172 | 3.071 | Carried forward |
| 2016 | Cleveland Indians | 172 | 4.071 | Carried forward |
| 2017 | Cleveland Indians | 172 | 5.071 | From transactions |
| 2018 | Cleveland Indians | 172 | 6.071 | Carried forward |
| 2019 | Cleveland Indians | 172 | 7.071 | From transactions |
| 2020 | Texas Rangers | 172 | 8.071 | From transactions |
| 2021 | New York Yankees | 172 | 9.071 | From transactions |
| 2022 | Tampa Bay Rays | 172 | 10.071 | From transactions |
| 2023 | Boston Red Sox | 172 | 11.071 | 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.