Last with Houston Astros · 3B · No longer on a 40-man roster
Chris Johnson has an estimated 6 years and 146 days of major league service time — 6.146 in the notation clubs use, from 1178 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2009 | Houston Astros | 30 | 0.030 | From transactions |
| 2010 | Houston Astros | 138 | 0.168 | From transactions |
| 2011 | Houston Astros | 150 | 1.146 | From transactions |
| 2012 | Arizona Diamondbacks, Houston Astros | 172 | 2.146 | From transactions |
| 2013 | Atlanta Braves | 172 | 3.146 | From transactions |
| 2014 | Atlanta Braves | 172 | 4.146 | Carried forward |
| 2015 | Cleveland Indians, Atlanta Braves | 172 | 5.146 | From transactions |
| 2016 | Miami Marlins | 172 | 6.146 | 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.