[1] Growing up, his figure skating idols were Evgeni Plushenko, Stephane Lambiel, and Jeffrey Buttle.

[5] From 2007 to 2009, Nguyen won three Canadian national men's titles — Juvenile, Pre-Novice, and Novice — each time becoming the youngest skater to do so.

Nguyen landed his first triple axel in competition in the preliminary round and qualified for the short program with a first-place finish.

Joanne McLeod coached him at the BC Centre of Excellence in Burnaby, British Columbia, until the end of the season.

Afterwards, at the World Junior Championships in Sofia, Bulgaria, he placed first in both segments and won the gold medal.

Nguyen started the season with a silver medal at the inaugural Skate Canada Autumn Classic, an ISU Challenger Series event.

[14] In December, he won the gold medal at the Skate Canada Challenge,[15] the qualifying event for Canadian Nationals.

After placing eleventh at the 2015 Four Continents, he finished fifth at the 2015 World Championships in Shanghai, recording his personal best scores in both segments.

Turning to the Grand Prix series, he placed fifth at the 2015 Skate Canada International and seventh at 2015 Rostelecom Cup.

After returning to Ontario in December 2016,[20] he began training at the York Region Skating Academy, coached by Tracey Wainman and Grzegorz Filipowski.

Nguyen switched coaches again following continued disappointing results, working instead with Robert Burke in Richmond Hill.

He instead joined Messing on the Canadian team at the 2018 World Championships, where he had a poor showing in the short program and failed to qualify for the free skating.

[32] Nguyen was fifth at his second assignment, the 2019 Rostelecom Cup, his only major error being popping one of his planned quad Salchow jumps in the free skate.

[33] Nguyen set out to defend his national title at the 2020 Canadian Championships, placing second in the short program behind Messing.

[34] Nguyen fell on both of his quad Salchow attempts in the free skate, and remained in second place overall, behind Roman Sadovsky.

[36] Nguyen placed sixth at Four Continents, the highest placement among the Canadian men there, with his only error across two programs being a singled attempt at a triple Axel in the free skate.

[37] Due to his strong performance at Four Continents, Nguyen was chosen to represent Canada at the World Championships, but these were cancelled as a result of the coronavirus pandemic.

[38][39] Nguyen was assigned to compete at the 2020 Skate Canada International, but the event was cancelled as a result of the pandemic.

[42] Nguyen was named as an alternate to the 2021 World Championships, the lone men's berth going to Keegan Messing.

[45][46][47] Nguyen was initially assigned to compete at the 2021 CS Autumn Classic International, but withdrew shortly before the competition.