[1] Lalanne attended Oak Ridge High School, in Orlando, Florida, where he starred on the varsity basketball team.
[2] Playing four seasons at UMass, Lalanne became one of three players in school history to record 1,000 points, 800 rebounds and 100 blocks in a career.
[6] On November 13, he made his professional debut in a 104–82 win over the Texas Legends, recording twelve points, four rebounds, one assist and one block in 27 minutes.
[10] The next day, he made his debut for the Capitanes in a 76–70 loss to the Santeros de Aguada, recording nine points, seven rebounds and two blocks in 14 minutes off the bench.
[28] On June 27, 2024, Lalanne signed with the Anyang Jung Kwan Jang Red Boosters of the Korean Basketball League.
[31] On March 25, 2021, the San Antonio Spurs traded their draft rights to Lalanne to the Golden State Warriors in exchange for Marquese Chriss and cash considerations.