A 27-year-old Tom Watson entered the 1977 Masters having won just four of his 39 PGA Tour victories, two of which came earlier that year.
Watson held a share of the 36- and 54-hole leads entering the final round of the 1977 Masters.
Four consecutive birdies (Nos. 5 through 8) gave Watson control of the tournament heading into the back nine.
Watson's playing partner, Rik Massengale, kept pace to start the day—trailing Watson by just one stroke heading into the back nine.
It was Jack Nicklaus, then a five-time Masters champion, who would pose the biggest threat. Jack charged on Sunday, taking the lead after a birdie on the 15th hole. He'd shoot a final-round 66.
Watson and Nicklaus were tied after 70 holes, but a birdie by Watson at 17 and a bogey by Nicklaus on the 72nd hole gave Watson a two- shot victory.
Watson's final-round 67 helped him to his first of two green jackets. It was also the second of eight majors Watson would win in his illustrious career.
Watson would outduel Jack again just months later at the legendary Duel in the Sun at Turnberry.
Watson's second green jacket (1981) would also come by a two-stroke margin over Jack, and Johnny Miller.
