There are so many personal stories I'm sure we all have. For football, for me, to date - it's the Kendall Reyes turnover return against Cincinnati in 2010. I remember writing a lot about it. That play struck me HUGE, and unfortunately, minus a couple of miniscule flashes since in the past 5 years, and very infrequently in the last 2 years - there hasn't yet been another one to come close.
It struck me, because about 8 years prior - we were a 1-AA team in transition and matched up with #1 ranked Miami in the orange bowl. We competed that night, as we ALWAYS did, minus large portions of the 2013 season and last year's Cincinnati game, but were so physically outmatched the game was never in doubt. At one point, Vince Wilfork blew through the line on the snap and strip sacked Dan Orlovsky, and the other DT - don't remember the name now, picked up the ball. 300+ lb DT for Miami, picked up the ball somewhere around midfield. THe sack was so quick, that pretty much all 22 were within 5-10 yards at most of scrimmage. It was a sprint to the endzone, and we had a couple of backs, and WR's that tried to catch that DT. By the 20-15-10-5-endzone - the 300lb+ Miami DT was outrunning our skill players in a flat out sprint and was pulling away. That single DT was faster than any player we had on offense. We ahd a long way to go.
THen Kendall Reyes, did the same thing to the entire Cincinnati offense in 2010. For me, we had arrived - finally. It's been a fall since, but I hope to see it get back on track again next week.