Last with Kansas City Royals · P · No longer on a 40-man roster
Louis Coleman has an estimated 6 years and 21 days of major league service time — 6.021 in the notation clubs use, from 1053 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2011 | Kansas City Royals | 161 | 0.161 | From transactions |
| 2012 | Kansas City Royals | 143 | 1.132 | From transactions |
| 2013 | Kansas City Royals | 91 | 2.051 | From transactions |
| 2014 | Kansas City Royals | 114 | 2.165 | From transactions |
| 2015 | Kansas City Royals | 28 | 3.021 | From transactions |
| 2016 | Los Angeles Dodgers | 172 | 4.021 | From transactions |
| 2017 | Cincinnati Reds, Arizona Diamondbacks | 172 | 5.021 | From transactions |
| 2018 | Detroit Tigers | 172 | 6.021 | 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.