Last with Detroit Tigers · P · No longer on a 40-man roster
Casey Fien has an estimated 5 years and 30 days of major league service time — 5.030 in the notation clubs use, from 890 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2009 | Detroit Tigers | 46 | 0.046 | From transactions |
| 2010 | Detroit Tigers | 5 | 0.051 | From transactions |
| 2011 | Detroit Tigers | 0 | 0.051 | Carried forward |
| 2012 | Minnesota Twins | 92 | 0.143 | From transactions |
| 2013 | Minnesota Twins | 172 | 1.143 | Carried forward |
| 2014 | Minnesota Twins | 172 | 2.143 | Carried forward |
| 2015 | Minnesota Twins | 172 | 3.143 | From transactions |
| 2016 | Los Angeles Dodgers, Minnesota Twins | 130 | 4.101 | From transactions |
| 2017 | Seattle Mariners, Philadelphia Phillies | 101 | 5.030 | 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.