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?