Depends on multiple factors. No soft sportsbook allows winners to continue winning since it could lead to their downfall. Sportsbet.io is no exception. If you win a lot, your account will most probably get limited. Talk to their customer service for more information related to this query.

Sharp books like Pinnacle, SBOBet etc and exchanges like Fairlay, Exbet etc don't limit winners. Instead, they encourage them to continue winning thanks to their business model.