A 2014 United States Junior silver medalist, Dubberstein represents the Philippines internationally since 2024.

She also competed at the United States Junior Curling Championships with her team winning a silver in 2014.

[2][3] Dubberstein competed for the Philippines at the 2024 Pan Continental Curling Championships Division B tournament.

Dubberstein partnered with Marc Pfister for the 2025 Asian Winter Games curling mixed doubles event.

They opened their campaign with an upset against the South Korean team,[5] and finished in fourth place with a 5–3 record, losing to China 6–5 in the bronze medal game.