Jason Day is an Australian professional golfer who achieved early success on the PGA Tour, winning the HP Byron Nelson Championship. His career peaked in 2015 with five victories, including the PGA Championship, leading him to become the world's number one golfer. He continued his success into 2016, winning three more tournaments and holding the top ranking. However, his performance declined in subsequent years. In 2023, Day experienced a resurgence, winning the AT&T Byron Nelson and returning to the world's top 20.
In November 1987, Jason Day was born. He is an Australian professional golfer.
At the age of 13, Jason Day had his first big win in 2000 at an Australian Masters junior event on the Gold Coast.
In 2004, Jason Day won the Australian Boys' Amateur and the Boys 15-17 division at the Callaway World Junior Championship.
In 2005, Jason Day lost in a playoff at the Greater Building Society QLD PGA Championship on the Von Nida Tour.
In 2005, Jason Day was runner-up in the Porter Cup as an amateur.
In July 2006, Jason Day turned professional after winning the Green Jacket at the NEC Master of the Amateurs.
In July 2007, Jason Day won his first Nationwide Tour event at the Legend Financial Group Classic.
In 2007, Jason Day failed to earn his PGA Tour card, but earned conditional status on the Nationwide Tour.
In 2008, Jason Day had a mediocre season but had conditional status for 2009.
In 2009, Jason Day retained his card for 2010 with a second-place finish at the Puerto Rico Open.
In May 2010, Jason Day became the youngest Australian to win a PGA Tour event, winning the HP Byron Nelson Championship.
In August 2010, Jason Day made his first appearance at the PGA Championship, finishing in the top-10.
In 2010, Jason Day finished 69th in the money list.
In June 2011, Jason Day finished alone in second place at the U.S. Open.
As a result of his major performances, Jason Day moved into the Official World Golf Ranking top-10 for the first time in his career in 2011 at ninth.
At the 2011 Masters Tournament, Jason Day tied for second with Adam Scott, setting the Masters record for the lowest score by a first-time participant.
In November 2013, eight of Jason Day's relatives in the Philippines, including his grandmother, died during Typhoon Haiyan.
At the 2013 Masters Tournament, Jason Day finished in third place.
In 2013, Jason Day finished as a runner-up for the third time in a major championship at the U.S. Open.
In February 2014, Jason Day won his first World Golf Championship event, the WGC-Accenture Match Play Championship.
In February 2015, Jason Day won the Farmers Insurance Open after prevailing in a four-way playoff.
On 20 September 2015, Jason Day gained the world number 1 ranking for the first time after winning The Barclays and the BMW Championship.
On 17 December 2015, Ellie Harvey, Day's wife, was injured at a Cleveland Cavaliers game after colliding with LeBron James while he attempted to retrieve a loose ball.
During the second round of the 2015 U.S. Open, Jason Day collapsed due to vertigo, but finished the tournament tied for 9th.
In 2015, Jason Day had a breakout season, winning five events, including the PGA Championship, and ascended to #1 in the world.
In 2015, Jason Day won the RBC Canadian Open and the PGA Championship, setting a new record at 20-under-par in a major.
As of July 2016, Jason Day has earned over $33 million in prize money on the PGA Tour.
In 2016, Jason Day continued his success, winning three tournaments, including The Players Championship, and preserved his #1 ranking.
In 2016, Jason Day won The Players Championship, marking his 10th career PGA Tour victory.
In late June 2016, Jason Day announced that he would not be playing in the Olympic Games in Rio de Janeiro due to concerns over the Zika virus.
On 1 January 2017, Nike announced that Jason Day was joining Nike Golf.
On 13 September 2017, after a winless season, Jason Day split from his caddie of 11 years, Colin Swatton.
In May 2019, Day continued to battle chronic back pain, trying new remedies such as balloon therapy.
In June 2019, it was reported that Steve Williams, Day's caddie and former caddie for Tiger Woods, had a strong influence over Day's decisions. Following an even par round at the Travelers Championship, Day practiced at the range at Williams' request, and shot 63 the next day.
After missing the cut at The Northern Trust in August 2019, Jason Day and his caddie, Steve Williams, ended their partnership, citing a 'disconnect between old school and new school'.
On 21 October 2019, Jason Day won The Challenge: Japan Skins, defeating Tiger Woods, Rory McIlroy, and Hideki Matsuyama.
From 2022, the Championship and Invitational were discontinued.
In May 2023, Jason Day won the AT&T Byron Nelson by one shot, marking his first victory in five years.
From 2023 the Champions was discontinued.
In 2023, Jason Day had a comeback year, winning the AT&T Byron Nelson, at the site of his first win, and returned to the world's top 20.