Justus Sheffield service time

Last with New York Yankees · P · No longer on a 40-man roster

Justus Sheffield has an estimated 2 years and 80 days of major league service time — 2.080 in the notation clubs use, from 424 days credited on a major league roster.

Season by season

Season	Club	Days	Running total	How this season is known
2018	New York Yankees	14	0.014	From transactions
2019	Seattle Mariners	39	0.053	From transactions
2020	Seattle Mariners	172	1.053	Carried forward
2021	Seattle Mariners	172	2.053	From transactions
2022	Seattle Mariners	27	2.080	From transactions
2023	Seattle Mariners, Atlanta Braves	0	2.080	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.