In 1965 Jack (-17) won by 9 shots, with a total of 9 players finishing under par.
In 1976 Ray Floyd (-17) won by 8 shots, with a total of 7 players finishing under par.
In 1997 Tiger (-18) won by 12 shots, with a total of 15 players finishing under par.
In 2015 Jordan (-18) won by 4 shots, with a total of 31 players finishing under par.
No question the course played easier this year than in years' past. Due to both softness and lack of wind. The commentators and players seem to agree that the greens had no "fire."
All kudos to young Jordan, he played the course in front of him, played wonderfully and never let anyone get close. As a contrarian, I do think his lack of Augusta experience was an asset to him as he did not have to shed imbedded memories of lightening greens, with long run-outs, etc. Although none of his opponents was able to sustain a charge sufficient to put serious pressure on him on Sunday, the course, itself, did not put up much of a fight, either, removing a significant "fear" factor. As examples, his three putt double on 17 Saturday was a result of a lack of concentration which he was able to remedy by pulling off that great flop shot on 18 to within 10 feet and saving par. Ordinarily, I would suspect that flop shot on its best day under ordinary Masters conditions would have still run out at least 20 feet, making par doubtful and bringing possible double bogey into play. Making bogey from that position would have been considered a good save.