She was born in Koronadal, South Cotabato, Philippines where her family owns and manages a plantation of organically manufactured products registered under Kablon Farms Foods Corporation.
She left Canada in July 2015 to finally join and play for the DLSU Lady Spikers and take her scholarship slot at De La Salle University.
[10] On her first playing year in the University Athletic Association of the Philippines, their trio of seniors Kim Fajardo and Cyd Demecillo won the gold trophy in UAAP Beach Volleyball Championship, a first in La Salle's history.
[citation needed] On her sophomore year, Tiamzon served as the team captain in UAAP Season 79 Beach Volleyball tournament where her team-up with Desiree Cheng and Kim Fajardo brought DLSU to bronze finish.
In the Finals Series, the Lady Spikers emerged as back-to-back champions giving De La Salle University its 10th championship title in the league.