Thomas is no badminton slouch himself. He took up the sport around five years ago, and has gone on to represent Western Heights High School and the Bay of Plenty.
"I've been playing since I was about 11," he said.
"My mum played it, and I didn't have anywhere else to go one day so I came along to the hall.
"It's a lot of training - I still haven't reached the 'good at it' part. But it's good fun."
Such is Thomas's modest, come what may attitude, he was not aware the tournament was an opportunity to be selected for the national side.
But after taking this weekend relatively easy, Thomas said he was looking forward to the regional schools competition taking place at Tauranga's Aquinas College on August 12, where he will represent his school.
After defeating Thomas and Johnson, Guo and Tagle continued their winning streak to ensure victory in the boys doubles competition.
Showing their dominance of the weekend's event, Tagle and Guo then squared up in the boys singles final.
Tagle came out on top, and then added another title to his name with a top-spot finish in the mixed doubles.
His partner, Sally Fu, also came away with the girls' doubles trophy alongside Christine Zhang.
Top seed Deborah Yin took out the girl's singles event, with Fu tying for third and Zhang coming in second.