Yes, of course you can beat the "popular" bookmakers. Once you start beating them ( being profitable in value prices ) they will simply close/ban your account.

Yes, of course you can beat the "popular" bookmakers. Once you start beating them ( being profitable in value prices ) they will simply close/ban your account. Nowadays, it happens extremely fast ( in a day or a few hours, depending on your moves ). It's a well known tactic, and in practice, you cannot do anything about it ( other than keep opening new accounts in new names ). Try beating a betting exchange.