Last with Arizona Diamondbacks · P · No longer on a 40-man roster
César Valdez has an estimated 2 years and 25 days of major league service time — 2.025 in the notation clubs use, from 369 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2010 | Arizona Diamondbacks | 44 | 0.044 | From transactions |
| 2011 | Pittsburgh Pirates | 0 | 0.044 | From transactions |
| 2012 | Pittsburgh Pirates | 0 | 0.044 | Carried forward |
| 2013 | Pittsburgh Pirates | 0 | 0.044 | Carried forward |
| 2014 | Pittsburgh Pirates | 0 | 0.044 | Carried forward |
| 2015 | Pittsburgh Pirates | 0 | 0.044 | Carried forward |
| 2016 | Houston Astros, Oakland Athletics | 0 | 0.044 | From transactions |
| 2017 | Oakland Athletics, Toronto Blue Jays | 92 | 0.136 | From transactions |
| 2018 | Oakland Athletics, Toronto Blue Jays | 0 | 0.136 | Carried forward |
| 2019 | Oakland Athletics, Toronto Blue Jays | 0 | 0.136 | Carried forward |
| 2020 | Baltimore Orioles | 89 | 1.053 | From transactions |
| 2021 | Baltimore Orioles | 142 | 2.023 | From transactions |
| 2022 | Los Angeles Angels | 1 | 2.024 | From transactions |
| 2023 | Los Angeles Angels | 1 | 2.025 | 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.