In 2019, Cusick's freshman season, he led the Wake Forest pitching staff in wins, going 7–3 with a 6.44 ERA over65+2⁄3 innings.[4] That summer, he played in theCape Cod Baseball League with theBourne Braves.[5][6] He pitched22+1⁄3 innings in 2020 before the remainder of the season was cancelled due to theCOVID-19 pandemic.[7] As a junior in 2021, Cusick started 12 games and compiled a 3–5 record, a 4.24 ERA, and 108 strikeouts over seventy innings.[8][9]
Cusick was selected by theAtlanta Braves in the first round with the 24th overall selection of the2021 Major League Baseball draft.[10][11] He signed with the Braves for a $2.7 millionsigning bonus.[12] To begin his professional career, he was assigned to theAugusta GreenJackets of theLow-A East.[13][14] During his first year in the minor leagues, Cusick pitched16+1⁄3 innings, striking out 34 batters, walking four, and giving up fiveearned runs.[15][16] Cusick joined the Braves' minor league camp before the 2022 season began.[17]
Cusick split the 2024 campaign between the rookie–levelArizona Complex League Athletics, Midland, and the Triple–ALas Vegas Aviators, posting a cumulative 3–4 record and 4.66 ERA with 66 strikeouts and 4saves across63+2⁄3 innings pitched. Following the season, the Athletics added Cusick to their40-man roster to protect him from theRule 5 draft.[24]
Cusick was optioned to Triple-A Las Vegas to begin the 2025 season.[25] In 13 appearances for the Aviators, he struggled to a 6.75 ERA with 11 strikeouts across14+2⁄3 innings pitched. Cusick wasdesignated for assignment by the Athletics on May 27, 2025.[26]
On May 30, 2025, Cusick was claimed off waivers by theDetroit Tigers.[27] Cusick made one scoreless appearance for the Triple-AToledo Mud Hens before Detroit designated him for assignment on June 2.[28]
On June 4, 2025, Cusick was claimed off waivers by theChicago White Sox.[29] He did not appear for the organization, and was designated for assignment following the promotion ofKyle Teel on June 6.[30]
On June 8, 2025, Cusick was claimed off waivers by thePhiladelphia Phillies.[31] In six appearances for the Triple-ALehigh Valley IronPigs, he struggled to a 12.86 ERA with five strikeouts over seven innings of work. Cusick was designated for assignment by Philadelphia on July 26.[32] He cleared waivers and was sent outright to Triple-A Lehigh Valley on July 28.[33]
