Seeing your later comment where you explain that it was a deposit bet explained a lot. Still an awesome win, but it would be really insane if it was a faucet bet.
How many rolls have you made in that series before u won it ?
I am wondering the same thing. Also what is are the odds of winning x9900 bet? I think something like fracture of percent. This is true luck. Faucet BTC or not, with 0.001 wagered it is still amazing.