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.
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.
Can we still say we are gambling if the event is something we are at least 90% sure that we are going to win?
Yes it is gambling, in as much as you are betting using your money or property involved, the possibility of you should not be seen as not gambling because you have worked well to earn your your reward because understanding a game to the point of winning is not always easy and most times the wins might be based on your the persons luck which cannot be overemphasized, except if the bets are being tempered for personal favour which will not be good at all, in that case we no longer see it has a game anymore because cheating has being introduced which is not healthy at all for a gambler and should be discourage if we really understand what we mean by gambling .
The joy and fun in gambling is that we don't know our chances of winning, which makes it more interesting and captivating, therefore we should not allow that aspect of gambling to be taking away from us when gambling, if we really want to do the right thing.