Jason Day, an Australian born golfer, got his start from his dad who died when Day was only 12. He attended the Hills golf academy in Australia where he trained under his current coach, Colin Swatton.

Day turned professional in July 2006 after winning the Green Jacket at the NEC Master of the Amateurs and immediately began playing PGA TOUR events, principally through sponsors' exemptions. He earned conditional status on the Nationwide Tour for 2007.

Day won his first Nationwide Tour event in July 2007 at the Legend Financial Group Classic, becoming the youngest man to win on any of the PGA TOUR's three tours. He ended up finishing fifth on the money list to earn his PGA TOUR card for 2008. In 2009 Day finished second at the Puerto Rico Open and ended the year 69th on the money list.

In May 2010, he became the youngest Australian to win a PGA TOUR event, winning the HP Byron Nelson Championship. Day ended the 2010 season ranked 21st on the PGA TOUR money list.

In 2011 Day has finished second at both the Masters and the U.S. Open.