Re: Is it still gambling if you're sure you're going to win?
There are event you can predict on that even though it's not 💯 guaranteed that you're going to win, a level of certainty makes you think that you're surely going to win.
What event you refer to? 
I am sure every bettor will be optimistic that they are going to win it. Unfortunately, the result can be unexpected.
The downside of that feeling is that you might become over confident to use a big amount in the game since you're to a large extent certain that you're going to win.
This is one of the reasons that a better can lose all their money. Being over confident isn't good, it is better to keep gambling in a proper way. Even you assume you are likely to win it, you mustn't try to use all your money.Can we still say we are gambling if the event is something we are at least 90% sure that we are going to win?
Since there is no guarantee to win, it will be always gambling. Even the chance to win 99%, the result can be the opposite of our prediction. This happens many times in football matches. A big team is often defeated by a mediocre team, especially it is a friendly match.