primedice but 1st u need to bet a little, then u have faucet to do it forver 
You don't understand that point of OP what he is asking for, he is looking for sports betting site with faucet not a gambling site with faucet, I also think there is no such a sportsbook with faucet where we can place bet by using only faucet amount.
Fortunejack has a faucet, not more, but ok, primedice has a faucet too.