Brown, a former Great British Olympic paddler, has trained Roy since 2009, while Bryant has also been a critical influence.
"Since most other paddlers are built much bigger than me, Spindles said 'You might be smaller now but if we get your technique sorted, when you catch up in size they won't match you" and that was pretty motivating. Sure enough, as I've grown in the last year, I've blown away expectations of how well I could do."
He picked up silver in the New Zealand under-18 K1 500m race in Rotorua last week despite a pulled muscle in his forearm, then combined with Papamoa's Taris Harker to finish second in both the K2 500m and 1000m races. On the final day, still paddling in pain, he finally broke through and won the K2 200m with Gisborne's Jarrod Fitzgerald. Both Harker and Fitzgerald will be teammates in the eight-strong squad this weekend.
Surf lifesaving still plays a big part in Roy's life - he's the youngest patrol captain at the Mount Lifeguard Service this season, following on from older brother James, while he and Andrew will both head straight back from Sydney to compete in next week's New Zealand surf lifesaving championships on their home beach. His brother's lead, meanwhile, has been crucial.
"Andrew has been a huge influence and after making so many New Zealand junior teams, I really wanted to achieve what he's done and even more. He has helped me a lot with technique and is normally the one forcing me out of bed most mornings to go and train!"
While this weekend will be about personal goals - making the K1 500m final and beating his K1 1000m personal best of 3mins 57sec - he's quickly changing focus for next week's surf lifesaving nationals.
"We'll have three days' rest and then we'll be straight back into it. I'm keen to make the under-19 surf ski final but I'm planning on focusing all my energy on my team events, to help boost the overall club performance."