Lange was selected by the San Diego Padres with the 34th overall pick in the 2020 Major League Baseball draft.[5][6] Lange signed with the Padres on June 24 for a $2 million bonus.[7]
Lange did not play a minor league game in 2020 due to the cancellation of the minor league season caused by the COVID-19 pandemic.[8] He made his professional debut in 2021 with the Rookie-level Arizona Complex League Padres.[9] Over nine starts, he pitched to a 0–3 record, a 6.95 ERA, 29 strikeouts, and 15 walks over 22 innings.[10]
On March 18, 2022, the Padres traded Lange to the New York Yankees in exchange for Luke Voit.[11] Lange spent the 2022 campaign with the rookie-level Florida Complex League Yankees, compiling a 3-1 record and 6.44 ERA with 51 strikeouts across 12 starts. Lange opened the 2023 season with the Single-A Tampa Tarpons and was promoted to the High-A Hudson Valley Renegades near the season's end.[12] Over 21 starts between both affiliates, he logged a cumulative 2-5 record and 4.75 ERA with 131 strikeouts across 85+1⁄3 innings pitched.
Lange missed the entire 2024 season due to a shoulder injury and returned to play in 2025 in a rehab start with the Complex League before being assigned to Tampa.[13] On February 11, 2026, Lange was released by the Yankees organization.[14]
On April 7, 2026, Lange signed with the Kane County Cougars of the American Association of Professional Baseball.[15]