Van Soest began fighting in amateur Muay Thai in 2009 and had her first title fight on August 14, 2010, at the San Mateo Event Center in San Mateo, California, challenging IKF Women's Amateur World Muay Thai Bantamweight (-55.45 kg/122.2
In just her fourth outing as a pro, she was given the chance to fight for the vacant International Karate and Kickboxing Council Women's World Super Bantamweight Muay Thai Championship on August 18, 2012, in Pala.