The 1964 U.S. Open was the 64th time the tournament was played.
Winner: Ken Venturi, 278
Where it was played: Congressional Country Club in Bethesda, Maryland
Tournament dates: June 18-20, 1964
Leader after first round: Arnold Palmer, 68
Leader after second round: Tommy Jacobs, 136
Leader after third round: Tommy Jacobs, 206
Notable Notes: Ken Venturi won his only major championship in stifling heat, despite nearly suffering heatstroke. This was the last U.S. Open played over only three days, with Round 3 and 4 (36 holes) played on the final day. In near 100-degree temperatures, Venturi almost collapsed on the 15th hole of the morning round. He walked and played slowly after that, followed closely by doctors, but managed to stagger across the finish line with a 2-stroke victory.