[3] In 2019, Cusick's freshman season, he led the Wake Forest pitching staff in wins, going 7–3 with a 6.44 ERA over 65+2⁄3 innings.
[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.
[13][14] During his first year in the minor leagues, Cusick pitched 16+1⁄3 innings, striking out 34 batters, walking four, and giving up five earned runs.
[17] On March 14, 2022, the Braves traded Cusick, Cristian Pache, Shea Langeliers, and Joey Estes to the Oakland Athletics in exchange for Matt Olson.
[23] Cusick split the 2024 campaign between the rookie–level Arizona Complex League Athletics, Midland, and the Triple–A Las Vegas Aviators, posting a cumulative 3–4 record and 4.66 ERA with 66 strikeouts and 4 saves across 63+2⁄3 innings pitched.