[3] After signing with the team he was assigned to the Pulaski Yankees before earning a promotion to the Single–A Charleston RiverDogs.
[4] He returned to Charleston for the beginning of the 2018 season before earning a promotion to the Tampa Tarpons of the High–A Florida State League after striking out 50 batters with a 2.62 ERA over 34+1⁄3 innings pitched.
[1] Baseball America rated Weissert as having the best slider in the Yankees' minor league system going into the 2021 season.
[6] After starting the year with the Yankees' new Double-A affiliate, the Somerset Patriots, Weissert was promoted to Scranton/Wilkes-Barre after posting a 0.71 ERA in 12+2⁄3 innings pitched over 12 appearances.
[12] On December 5, 2023, the Yankees traded Weissert, Richard Fitts, and Nicholas Judice to the Boston Red Sox in exchange for Alex Verdugo.