I've been following a couple of threads by
BitcoinSupremo. They seem to have some good tips, and what I have seen so far has been free. You might as well give a look and see.
just visited her/his thread, and seems like she/he only pick a favorite teams and low odds above 1.50 overall which i think it's not a tipster at all.
i would recommend more experienced tipster like joca97 , he is a professional footballer too , more reliable i guess.