"You just focus on the technique a lot, but growing up I never thought I'd one day be going to the Commonwealth Games," he says.
Langton Burnell holds down a job but also studies at Massey University, having completed a degree in agri-commerce. He is now working on a degree in accounting.
Though he specialises in javelin throwing, during training he does all sorts of other sports from sprinting to jumping, gymnastics to gym work and hurdling. "Your whole body needs to be in tune to achieve a good throw," he says.
He competed at the World Championships in London last year in a stadium with enough seats for 80,000 people. "The Commonwealth Games' stadium is much smaller. It's a big thing going to the Commonwealth Games, but I try not to get too nervous about it. It will be my first big multisport event though."
Standards for the Games are very high, he says, especially in athletics. "For example the 100m sprint means you need to be able to run 12-15m ahead of any All Black going for the try-line, you need to do it in 10.1 secs.
"That is blisteringly fast. In athletics there are so many people competing that qualifying is quite hard."
Ben Langton Burnell is competing at the Commonwealth Games on April 13 and 14.