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?
Think about those match fixing games it's fits perfectly into the analogy. Most of those people who bet on the fixed matches already know that they are going to win but they bet anyway, for me, it still counts as gambling as there is already an odd, and some betting stats.