Aroldis Chapman

Boston Red Sox · P · Free agency eligible

Service time16.016
Days credited2768
MLB debut2010-08-31

Season by season

SeasonClubDaysRunning totalHow this season is known
2010Cincinnati Reds340.034From transactions
2011Cincinnati Reds1721.034From transactions
2012Cincinnati Reds1722.034Carried forward
2013Cincinnati Reds1723.034Carried forward
2014Cincinnati Reds1724.034From transactions
2015Cincinnati Reds1725.034From transactions
2016Chicago Cubs, New York Yankees1726.034From transactions
2017New York Yankees1727.034From transactions
2018New York Yankees1728.034From transactions
2019New York Yankees1729.034Carried forward
2020New York Yankees17210.034From transactions
2021New York Yankees17211.034From transactions
2022New York Yankees17212.034From transactions
2023Kansas City Royals, Texas Rangers17213.034From transactions
2024Pittsburgh Pirates17214.034From transactions
2025Boston Red Sox17215.034From transactions
2026Boston Red Sox15416.016From 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.

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 2026-08-25.

Independent project, not affiliated with or endorsed by Major League Baseball or the MLBPA.