I've seen a lot of sporting events in my short life, but the best one for me would have to be Max Scherzer's no-hitter (which should've been a perfect game) back in 2015.
The Bengals and Reds are 0-4 in the playoffs with me in attendance during my lifetime, and I've never seen an Ohio State postseason game in person, so I have to go with that.
I'm curious as to what you fellas have experienced.