Last with Boston Red Sox · P · No longer on a 40-man roster
Junichi Tazawa has an estimated 7 years and 164 days of major league service time — 7.164 in the notation clubs use, from 1368 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2009 | Boston Red Sox | 58 | 0.058 | From transactions |
| 2010 | Boston Red Sox | 172 | 1.058 | From transactions |
| 2011 | Boston Red Sox | 104 | 1.162 | From transactions |
| 2012 | Boston Red Sox | 93 | 2.083 | From transactions |
| 2013 | Boston Red Sox | 172 | 3.083 | Carried forward |
| 2014 | Boston Red Sox | 172 | 4.083 | Carried forward |
| 2015 | Boston Red Sox | 172 | 5.083 | Carried forward |
| 2016 | Boston Red Sox | 172 | 6.083 | From transactions |
| 2017 | Miami Marlins | 172 | 7.083 | From transactions |
| 2018 | Los Angeles Angels, Miami Marlins | 81 | 7.164 | 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.