Jordan Spieth became world No 1 during a remarkable 2015 in which he won the Masters and US Open and finished fourth and second in the following two Majors.
With a hole to play in The Open at St Andrews that season Spieth still had the chance of an unprecedented Grand Slam of all four Majors in one season, but a par four ended that dream.
Fast forward to 2017 and Spieth found himself in familiar territory with a chance to win.
After an astonishing finish in which he almost aced the 14th, eagled the 15th and birdied the next two he became the Champion Golfer of the year at The 146th Open at Royal Birkdale.