Ken Venturi, 1964
Champions are rarely victims, but on an oppressively hot Sunday at Congressional Country Club in Bethesda, Md., Venturi was the exception. At the close of the third round — this was when the final 36 holes were played on the same day — Venturi, visibly wracked by heat exhaustion and dehydration, missed two tap-in par putts. At the intermission, Venturi's physician fed him tea and salt tablets and advised him to withdraw. Venturi declined, and with his doctor trailing him with ice packs, shot even par over the next 18 holes to win by four. When it was all over, his then-wife, Conni, gave him a shoulder to lean on.