Chicago Cubs · P · Free agency eligible
Caleb Thielbar has an estimated 8 years and 132 days of major league service time — 8.132 in the notation clubs use, from 1508 days credited on a major league roster.
| Season | Club | Days | Running total | How this season is known |
|---|---|---|---|---|
| 2013 | Minnesota Twins | 134 | 0.134 | From transactions |
| 2014 | Minnesota Twins | 172 | 1.134 | Carried forward |
| 2015 | Minnesota Twins | 15 | 1.149 | From transactions |
| 2016 | Miami Marlins | 0 | 1.149 | From transactions |
| 2017 | Miami Marlins | 0 | 1.149 | Carried forward |
| 2018 | Detroit Tigers | 0 | 1.149 | From transactions |
| 2019 | Detroit Tigers, Atlanta Braves, Minnesota Twins | 0 | 1.149 | From transactions |
| 2020 | Minnesota Twins | 155 | 2.132 | From transactions |
| 2021 | Minnesota Twins | 172 | 3.132 | From transactions |
| 2022 | Minnesota Twins | 172 | 4.132 | From transactions |
| 2023 | Minnesota Twins | 172 | 5.132 | From transactions |
| 2024 | Minnesota Twins | 172 | 6.132 | From transactions |
| 2025 | Chicago Cubs | 172 | 7.132 | From transactions |
| 2026 | Chicago Cubs | 172 | 8.132 | 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.