Never tried that and I'm not sure but I think only few people do this kind of strategy. Actually, we can't even consider it a winning strategy but rather losing strategy but I kinda get what you are saying, I personally do that but only whenever what's left on my budget, let's say I have $5-10 then what I do is to choose underdogs or teams that has lower chance of winning and place bet on it, but I didn't do it blindly even though they are underdog, I still do some research and actually some of it works but not all the time.