Flying high with Seth
"It's dressage for aeroplanes," Seth's dad Chris explained.
For most people, understanding how to control a plane like that normally would be mentally taxing. When the plane is turning in every possible direction, keeping an understanding of what directions the controller will do when it's upside down, coming towards you etc. might seem impossible to many.
For Seth, it's child's play.
"I don't know how he does it. It's just mind blowing that his mind works how it does," Chris said.
Seth said the secret to his success was simply how long he's been doing it, having been practicing on simulators since the age of three.
"I wake up at about 5:30 every morning to practice on the simulator. Then if the weather's good I'll fly a plane. Then a week before the competition I'll fly at least four times a week. Without a competition it's about two times a week," he said.
"I've just been doing it for a long time." After beginning competition at age 11, Seth progressed to being able to compete at the highest level of the sport in a very short amount of time.
He flies for both the Sale and District Aeromodellers Club as well as the Pakenham and District Aircraft Radio Controlled Society.
Seth's obsession with flying doesn't stop there - model planes litter his bedroom, and said when he turns 16 he'll be going for his pilot licence before his driver's licence.
It's certainly an unusual sight for someone so young to be as strong in their chosen sport. For context, the person who came second to Seth at Albury was in his 60s.
And while in other sports a 13-year-old being as strong as he is might be a sticking point for some, in precision aerobatics it's anything but. "Everybody embraces. Everyone just loves it," Chris said of the community surrounding Seth.
"Everybody's been really, really supportive of him and we've had so much help from so many people."
Seth agreed, saying "socialising with people" was his favourite part of the sport.
"It's a really good community," he said. He originally got into the sport through his father, who had plenty of interest in flying remote controlled planes himself. Today the two work as a pair, with Chris calling Seth's manoeuvres when he flies.
"It was probably dad. He flew a bit and then I liked that he flew so I wanted to fly," Seth said.
"I was not a good pilot," Chris added.
"I've wrecked more planes than you could poke a stick at."
Seth, meanwhile, is yet to crash a plane in his burgeoning career.
When he heads to China he'll finally get the chance to compete against other kids, having been entered into the junior category as opposed to the open field he's used to piloting against in Australia.
He also has high hopes of qualifying for the World Championships in America next year. "It's pretty exciting," he said.
Seth might be staying humble, but it's hard to deny - he's very good at what he does.