Ernestine Tiamzon

Career Tiamzon originally played basketball in high school. She eventually shifted to volleyball and played with the Moscrop Panthers in Moscrop Secondary School. Back in Canada, she was a member of a club team in Apex Volleyball U18. During her high school career in Canada she was grades 10 South Delta Tournament Most Valuable Player, grades 10 & 11 Invitational Most Valuable Player, grades 8-11 Allstar Awardee and grades 10 & 12 Provincial Allstar. She was also grade 11 second Allstar, grades 8-12 Burnaby/New West Banner champions, Grades 8 & 10 Vancouver & District champions and Grades 11 & 12 second placer (Lower Mainlands).

In February 2015, she was initially invited by DLSU team managers, Raffy Villavicencio and Eric Ongkauko, to join the training of the DLSU Lady Spikers conducted by head coach Ramil de Jesus. 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.

Short after arriving in the Philippines, she was assigned as the team's reserve player in the UAAP Season 78 Beach Volleyball tournament. 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.

During the UAAP Season 78 indoor volleyball tournament, she played as an Outside Hitter. They were able to win the golden trophy from their archrivals Ateneo Blue Eagles after 2 years of placing 1st runner-up.

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 UAAP Season 79 indoor volley, Ernestine has led DLSU's offense and was recognized as Player of the Game in few of the games of the season. 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.

With F2 Logistics Cargo Movers, Tiamzon won the 2017 PSL Grand Prix Conference championship.

In January 2023, Tiamzon announced her retirement from volleyball after F2 Logistics Cargo Movers announced that Tiamzon and several players have left the team.

In May 2025, it was announced that Tiamzon came out of retirement and decided to play pro again after 2 years by signing a contract with the Cignal HD Spikers.

Awards

Collegiate

2019 UAAP Season 81 volleyball tournaments - File:Med 3.png Bronze medal, with De La Salle Lady Spikers

2017 UAAP Season 79 beach volleyball tournaments - File:Med 3.png Bronze, with De La Salle Lady Spikers 2018 UAAP Season 81 beach volleyball tournaments - File:Med 2.png Silver, with De La Salle Lady Spikers 2019 UAAP Season 82 beach volleyball tournaments - File:Med 2.png Silver, with De La Salle Lady Spikers

Clubs