Winning 1 bitcoin is hard for those that doesn't have big capital but we are going far from the topic. I admire this type of person for being resourceful and he earned that much from those gamblers that he didn't know. I thought before that referrals aren't working anymore but this made me hopeful and wanna try referrals soon.
If you are having a good day then you could make a good amount ,even more than a bitcoin with just 0.05 btc, i have done it before and cashed out but the problem is i could not repeat that feat after that,i had one lucky day and i made the most ,it is all about luck.