this is incorrect, most you can bet at a time is 1BTC, that being said if the same person held the top 3 spots from different addresses,

1st 1x200%=2
2nd 1x150%=1.5
3rd 1x100%=1

so in theory there is a potential 4.5 btc up for grabs  current prices roughly 271$/BTC about 1245$ on the leadeboard alone!!
that's not including the 130% return from reinvesting whatever you make through the ponzi itself over the next 4 days!