Last with Baltimore Orioles · P · No longer on a 40-man roster
Chris Tillman has an estimated 7 years and 49 days of major league service time — 7.049 in the notation clubs use, from 1253 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2009 | Baltimore Orioles | 70 | 0.070 | From transactions |
| 2010 | Baltimore Orioles | 63 | 0.133 | From transactions |
| 2011 | Baltimore Orioles | 66 | 1.027 | From transactions |
| 2012 | Baltimore Orioles | 81 | 1.108 | From transactions |
| 2013 | Baltimore Orioles | 172 | 2.108 | From transactions |
| 2014 | Baltimore Orioles | 172 | 3.108 | Carried forward |
| 2015 | Baltimore Orioles | 172 | 4.108 | Carried forward |
| 2016 | Baltimore Orioles | 172 | 5.108 | From transactions |
| 2017 | Baltimore Orioles | 172 | 6.108 | From transactions |
| 2018 | Baltimore Orioles | 113 | 7.049 | 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.