Gambling can be great if you know anything about sports.
I knew enough about the sport, but it does not guarantee you to win big on gambling. even if you choose a big team you can lose, all about luck. I like soccer and soccer gambling does have a very high risk
Gambling in every shape have big risk not only in Soccer as few minutes ago few pundits give picks of heavily favorites in Tennis but they lost badly matches against underdogs
I think soccer league is easier to predict rather than horse racing, basket ,etc
As my friend ever win big by betting on sport ( champion league ) on last week using his deep analysis to predict out