I am the owner of www.btcjack.com - Home of online bitcoin games We hold weekly bitcoin poker freerolls for the bitcoin community , free sportsbets not all our websites are 100% bitcoin oriented but they all accept bitcoin as a way of payments for deposits and withdrawls. We are very much aware that bitcoins is flucuated system that is why the prices of the freerolls usually stay the same and that is why we do not usually post prizes in USD.