While there's no limit in betting sports even if you know nothing about that certain sport, but it gives you more advantages if you decide to bet only on sports that you are highly knowledgeable of. Aside that it will reduce emotional bias since you are betting not based on your emotions, it will also give you informed decisions so you can understand better by knowing the personal background of the game, the players performance and its historical trends and patterns. With that, you are increasing your chances of winning with your smart decision making and profitable decisions.
Exactly, sport betting is vast and wide, however I limit myself to Soccer betting that is my choice and preference, basically I am conversant with the sport being an ex footballer I have enough knowledge on that sport, I also follow and knew much about major European leagues such as Ligue -1, Laliga, premier league and Bundesliga thus I knew all the strong teams and weak teams across those leagues with gives more advantage of picking my bets after some through analysis, however I never bother placing bets on other sports like Basketball, Tennis, Horse racing even after getting signal from sport betting channels l sticked to soccer betting.