There's probably a really good reason why no amateur has ever won the Masters:

It's just too hard.

Ken Venturi had a great shot in 1956. He came into Sunday with a four-shot lead, but four three-putts and trouble with Augusta National Golf Club's tricky wind gusts doomed him.

How difficult was it that day? The winner, Jack Burke Jr., edged Venturi by a shot.

The bottom line was this: The pressure got to Venturi as his lead shrunk. Quite naturally, he began to pressure and things got worse and worse.