Ashman is looking to give his mom Lisa a piece of the prize - even though she used to scold him for spending so much time playing the shooter-survival game.
It is thought that up to a million viewers had followed live streams of last night's showdown, where a 16-year-old American known as "Bugha" walked away with the top prize.
American teenager Kyle Giersdorf won US$3 million (S$4.1 million) on Sunday (July 28) after taking the top prize in a tournament in NY for the popular online video gameFortnite.
Harrison "Psalm" Chang, 24, took home US$1.8 million in second place, while Epikwhale - whose real name hasn't been revealed - won US$1.2 million in third place and Nate "Kreo" Kou, 18, won US$1.05 million.
The e-sports tournament has been one of the biggest of its kind so far, with thousands of people attending the Arthur Ashe stadium in NY - and millions watching online - to see some of the best players in the world. In the game, players parachute into a large map that gets smaller over time. With the first of what can only be anticipated as many more annual Fortnite World Cup events, Epic has yet to announce when qualifying tournaments for next year's World Cup will begin, but I'm betting they'll probably start up again at the end of 2019.
But now young Jaden Ashman has had the last laugh - by playing his way to nearly £1-million (about R17.6-million) in the first Fortnite World Cup.
His mum once disapproved of his video game obsession - going so far as to throw out his Xbox and break his headset - but now she's being treated to a new house and vehicle.
Austrian David "Aqua" Wang (17) and Norwegian Emil "Nyhrox" Bergquis Pedersen (16) took out the Duos title in the battle royale competition to share in the $US3 million ($A4.34 million) winner's cheque.
This pool was eventually whittled down to 100 solo players and 50 duos, from a total of 30 nations.
"Me and my mum, we clash quite a lot".
'So now that I've proved to her that I can do stuff, I'm really happy'. He told the BBC he wants to save most of his prize.