My gambling strategy in Hocky games is that i pick couple of top teams or weaker one and bet on the top teams to win and on the weaker one to lose and i chose NHL because odds in those games always high and if lost the bet i bet on the same team for the next game with doubling the amount sometimes jusrtthe same amount depends on their situation and opponent's.
I honestly do not even have a strategy because of the fact its not needed at all, with gambling its based on luck and not on a strategy in my eyes.