[3] Rosenbaum attended Pomona College majoring in Computer Science, and played for the Pomona-Pitzer Sagehens ('19).
[3] He was named 2016 Southern California Intercollegiate Athletic Conference Newcomer of the Year.
In 2016-17 he averaged 14.7 points per game and was Second Team All-Southern California Intercollegiate Athletic Conference.
[3] In 2017-18 he averaged 15.6 points, 6.9 rebounds, and 2.0 assists per game, and was First Team All-SCIAC.
[4] Rosenbaum plays for Maccabi Ironi Ramat Gan in the Israeli Basketball Premier League.