Announced himself as the hottest player on the planet in 2015, when he won the Masters Tournament and the US Open Championship. Triumphed by four shots at Augusta National, having finished tied second on his first appearance there the previous year, then edged out Dustin Johnson and Louis Oosthuizen at Chambers Bay two months later. Credited the help of his caddie, Michael Greller, who began his career at the quirky links course in 2007 and got married there in 2013. Spieth became the second youngest Masters winner, behind Tiger Woods, and the youngest to win the Masters and the US Open, at 21 years and 329 days. Showed enormous early potential when he made the cut in a US PGA Tour event aged 16 and became the first teenager since 1931 to win a US PGA Tour event when he claimed the 2013 John Deere Classic at 19. Turned professional in December 2012, midway through his sophomore college year, and relied on sponsors’ invitations in 2013 until he quickly won enough money to earn Special Temporary Member status on the PGA Tour. By the end of 2013, had amassed nine top ten finishes from 23 starts, including one win and three runner-ups. Was named PGA Tour Rookie of the Year and earned a pick for the Presidents Cup team. Qualified for the US 2014 Ryder Cup team and won two and a half points from four at Gleneagles. Despite his young age, has already started the Jordan Spieth Charitable Fund, which provides awareness and financial assistance to special needs children, military families and youth golf.