Would like to echo the thoughts of previous responses which say the ideal game to bet on is the one in which you have the most personal knowledge.
But, I would also like to give a caveat. Tennis. I would never bet on tennis again. Many decades back, when I was younger and even more stupid than I am now, I was used to wager on (men’s) tennis. After a time, it occurred to me that my success rate wasn’t anywhere near where it ought to be. I was only mildly unrealistic concerning what my success rate should be my success rate was, objectively, quite terrible. I researched my stakes as best I could (in the moment, Official Site of Men’s Professional Tennis | ATP World Tour | Tennis was a treasure trove of statistics which could help you choose your own bets) but even allowing for”the house always wins” character of gambling, I was terrible. So, I decided to do some research of my own. As all tennis lovers know as Jerry Seinfeld expressed well, the scoring system in tennis is very weird. Four tips to win a match, six games to win a set (having an advantage of two) etc.. Fortunately, the ATP tour site provided data on total points won for every single game. So I did a little study of my own. Across a number of tournaments (it was a very long time ago, I can’t remember the number) I discovered that, on the ATP tour, something like 70-80% of games were determined by 5-7 points or not. Woah. Too close. Additionally, there is no question of corruption. A number of experts (both good to quite good and journeymen) are investigated for match fixing. This is an issue for every sport where widespread betting is allowed but obviously more widespread in sports than bigger team sports.
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