On Sunday, Ney raced the 22.8 km junior individual time trial.
Only last month he claimed the Canadian title in the same event by one-tenth of a second.
The course in Glasgow featured a flat first 10 km, followed by an undulating 11km and ended with a climb to the finish that included a short 11 percent gradient.
The winner was Australian Oscar Chamberlain with Ney finishing 1 minute 22.49 seconds behind.
Meanwhile, Matthew’s older brother Josiah has qualified for the 2023 World Triathlon Age-Group Championships being contested in Pontevedra, Spain, next month.
Ney, a former Tairāwhiti Rising Legends recipient, will be representing Canada in the under-23 race.