He is a world class gymnast of course, and you would have to think he would medal in judo and some of the other fighting events. What about track and field? I could see him being a great decathlete and he can obviously medal in the running events (quote from Winter Soldier "dude you just ran 13 miles in like 30 minutes").
What events could he NOT medal in?I just can't see him being good enough at football/basketball/beach volleyball. Maybe with a few years of specific training, but not right this minute.
What about Hulk, Ironman, and Black Widow?
Discus.