For me it’d be Badminton and maybe archery.
As I watched the British Team almost get Gold today it occured to me that that could have been me (in an alternate universe)
Many many years ago at school we got to choose which sport we would do during PE. I chose badminton, and turned out to be quite good at it. It was the first time I ever enjoyed doing PE (Physical Education) I loved playing that game!
Now if I had picked up on the fact that I was good at it, and persued it further I might, just might have been a contender. And in the world of fantasy I might even have qualified for the olympics.
The reason I mention archery is because I was a pretty good shot with a catapult and all other tests of aim (bb guns, air rifles, computer shooting games) I had a flair for shooting when the aim was right (not trying to get the aim right but merely waiting for the aim to be right, as I knew humans had a natural shakiness in their aim)