[Congrats and these people are really lucky. Risking just $15 and receiving more than $15000, what a luck it is. 1000x the bet value. During this bullish season it is more than enough for the guy to spend good. Anyhow he needs to be careful to have an exit point at the right time. If not the same can dissolve in a short.
It doesn't matter what will be the next move he'll do with his winnings. I think I'm already addicted to waiting for updates like this on this thread about those small bets but winning huge amounts and jackpots.

They can spend it wisely and again roll some of it again on the Roman legion.