Billy Casper hit five balls into the water at the par-three 16th, his seventh, on his way to an embarrassing 14 at Augusta on Thursday.
Casper put his ball in the water five times at the short 16th
The 73-year-old American's 11-over total was the highest ever recorded for a single hole at the Masters.
Casper, playing here for the first time since 2001, would go on to complete a 34-over-par 106, the worst round in tournament history by 11 shots.
The 1970 champion was then disqualified for failing to hand in his card.
"I was only going to play 18 holes - I just had to get it out of my system," he said.
"I wanted to do it again. A lot of my grandchildren were here."
The 170-yard 16th, named Redbud, requires a precise tee shot played entirely over water.
American Tom Weiskopf produced a 10-over 13 at the par-three 12th during the 1980 Masters.
Japan's Tommy Nakajima ran up an eight-over 13 at the 13th during the 1978 tournament.
The previous record for the worst round was 95, carded by Charles Kunkle in the final round of the 1956 tournament.