Alexa Testa began her ballet training at Eglevsky Ballet on Long Island. She attended The School of American Ballet Summer Course on full scholarship in 2015 and was invited to join the winter term. Alexa spent six years training under Kay Mazzo, Suki Schorer, and Susan Pilarre. In 2021, she was awarded the Rudolf Nureyev Foundation Scholarship. She has spent summers training at NYSSSA, Ballet Academy East, Miami City Ballet, Charlotte Ballet, Boston Ballet, and Carolina Ballet. During her time at Carolina Ballet, Alexa has especially enjoyed performing works by Zalman Raffael, George Balanchine, Gianna Reisen, and Amy Hall Garner.