Looking for a science fiction short story, probably published in 1960's or 1970's. War has been formalized to a battle in a valley sized arena between two armies that is fought until only one soldier is left. That solder is called a "Winner" and he is immune from all laws for the rest of his life. The wars are televised. Final scene is the "Winner" breaking into the house of a big fan of watching the wars and walking up the stairs to where his daughter is... anyone remember it?
The Survivor, by Walter F. Moudy. 1965. The story is posted on this page: