Last with Kansas City Royals · CF · No longer on a 40-man roster
Jarrod Dyson has an estimated 10 years and 86 days of major league service time — 10.086 in the notation clubs use, from 1806 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2010 | Kansas City Royals | 28 | 0.028 | From transactions |
| 2011 | Kansas City Royals | 68 | 0.096 | From transactions |
| 2012 | Kansas City Royals | 162 | 1.086 | From transactions |
| 2013 | Kansas City Royals | 172 | 2.086 | From transactions |
| 2014 | Kansas City Royals | 172 | 3.086 | From transactions |
| 2015 | Kansas City Royals | 172 | 4.086 | Carried forward |
| 2016 | Kansas City Royals | 172 | 5.086 | From transactions |
| 2017 | Seattle Mariners | 172 | 6.086 | From transactions |
| 2018 | Arizona Diamondbacks | 172 | 7.086 | From transactions |
| 2019 | Arizona Diamondbacks | 172 | 8.086 | From transactions |
| 2020 | Pittsburgh Pirates, Chicago White Sox | 172 | 9.086 | From transactions |
| 2021 | Kansas City Royals, Toronto Blue Jays | 172 | 10.086 | 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.