I Won a Bet

My friend made a wager on 08/31/17 that I couldn’t make an ace by 12/31/18. It’s a reasonable amount of time for the small amount that we bet. I made my ace on 11/15/17, just two and half months after we’d agreed to the bet. I didn’t even see the ball go in, but my friend claims he heard a “click”, so imagine my surprise when I looked in the hole and became a few bucks richer!