On July 31, 2018, Schryver was traded to the Chicago White Sox in exchange for international signing pool bonus money.[5] He was assigned to the Winston-Salem Dash of the High-A Carolina League. Over 63+2⁄3 innings between Bowling Green, Charlotte, and Winston-Salem, he went 1-5 with a 2.12 ERA, eighty strikeouts, and 11 saves.[6] In 2019, he began the year with the Birmingham Barons of the Double-ASouthern League before being promoted to the Charlotte Knights of the Triple-AInternational League. Schryver pitched to a 3-2 record and a 4.04 ERA over 62+1⁄3 innings pitched in relief between both teams.[7] In February 2020, he underwent Tommy John Surgery which would have forced him to miss the 2020 minor league season had it not been cancelled due to the COVID-19 pandemic.[8] For the 2021 season, Schryver returned to Charlotte, making forty relief appearances and compiling a 1-0 record, a 4.98 ERA, and 48 strikeouts over 43+1⁄3 innings.[9] He returned to Charlotte to begin the 2022 season.[10]
On September 12, 2022, Schryver announced his retirement from baseball. Over his minor league career, he posted a 3.55 ERA and 261 strikeouts.[11]
