I mean they paying sites or not? Becouse I register in some BTC sportsbook and they do not pay..
Can you mention the BTC sportsbookw that does not pay you? It will be very helpfull for us especially for sports betting lovers.
You can see the thread which says best gambling site of the month in here and the votings for that. There are many websites with sports betting in there.
It would be a help if you name the site which haven't paid you, others will be cautioned to put their money into it.