Sirius found quite a bit about Muggle culture fascinating though . It was while watching the events that Harry wondered what he would be able to compete at . Surely not Gymnastics . He did not have the grace for that . He was an alright swimmer , but nothing that would make him stand out against anyone else .

Answer the following question: What might be the reason Harry had no idea what he could compete at ?
Harry had never participated in any sport so he did n't know what he could do .