Merrick was born and raised in Long Beach, California. He grew up playing Recreation Park municipal golf course, a classic layout by William F. Bell. He attended Wilson Classical High School where he won the Moore League High School Championship. Merrick won the Southern California Golf Association Amateur Championship when he was only 19 years old, making him the youngest person since Tiger Woods in 1994 to capture that title. In 2003, he medaled at the Pac-10 Men's Golf Championships, leading the UCLA Bruins to their first championship victory since 1985. He shot a course-record 63 at Oakmont Glendale, with three eagles in one round, the only collegiate player to do so that year. At the 2002 U.S. Amateur at Oakland Hills, he tied for second in stroke play at three-under par 137 (71-66) and advanced to the second round before losing 2&1 to finalist Hunter Mahan.
Professional career
Merrick is currently a member of the PGA Tour. He was a member of the Nationwide Tour in 2006. He gained his 2007 PGA Tour card by finishing 21st on the money list in 2006 after his first professional win at the Peek'n Peak Classic. He then went to Q-School and finished tied for fourth. He was the first player to improve his status through Q-School. He consistently ranks among the top players in statistics for total driving (length plus accuracy), greens in regulation, and overall ball-striking.
2007
In his rookie year, Merrick played in 29 events, making 16 cuts. His best finish was T-4 at the Reno-Tahoe Open. After finishing 135th on the money list in 2007, Merrick went back to Q-School where he birdied the last hole to shoot -5 to regain his PGA Tour card for 2008.
2008
On his second full year on tour, Merrick exceeded $1 million in earnings by virtue of 4 top-ten finishes. He got off to a strong start with a T-16 in the Bob Hope Classic (playing as the last alternate into the field) and a career-best T-3 at the Mayakoba Golf Classic at Riviera Maya-Cancun. He was the leader after the third round at the rain-plagued Zurich Classic of New Orleans, finishing T-7. He was medalist at the 2008 U.S. Open sectional qualifying event held at Cordova, Tennessee, shooting 65-65.
At his second career U.S. Open, Merrick finished T-6 at Torrey Pines, a course he played frequently during his junior golf and amateur career. A long birdie putt on Merrick's 72nd hole earned a pass into the 2009 Masters as well as the 2009 U.S. Open. He qualified for the 2008 PGA Championship with the 70th-place ranking in official money standings.
Merrick ended the year 83rd on the money list and retained his card for 2009.
2009
Merrick earned his best result on tour to date at the 2009 Bob Hope Classic, finishing 2nd by three strokes to Pat Perez. He finished T-6 at the Puerto Rico Open in March. A month later, playing in his first Masters, Merrick shot a final round 66 to finish T-6, equaling his best major result to date. Although he missed the cut at the U.S. Open, he rebounded to finish T-10 at the 2009 PGA Championship. Merrick ended the year ranked 58th on the money list. He teamed with Nick Watney in the 2009 Omega Mission Hills World Cup, finishing T7, on the strength of a tournament-record 62 for the final day foursomes.
2010
Despite making 23 cuts including 11 in a row, Merrick finished 2010 at number 140 on the money list. His only top 10 finish was a tie for 3rd at the Reno-Tahoe Open.
2011
Merrick played out of the conditional category (125 to 150 on money list). He Monday-qualified for the Sony Open in Hawaii and the Travelers Championship, where he finished 9th. He finished the year 119th on the money list, and regained his PGA Tour card.
2012
Persevering after a mediocre start to his season, Merrick earned a solo second place at the FedEx St. Jude Classic, one stroke behind winner Dustin Johnson. He finished the year 93rd on the money list, and retained his PGA Tour card.
2013
After 169 starts, Merrick earned his first career PGA Tour win at the Northern Trust Open, beating Charlie Beljan on Riviera's famous 10th hole, the second hole of a sudden-death playoff. The win earned Merrick his third career Masters invitation and his first at a major since the 2010 PGA Championship. Merrick became the first native of Los Angeles County to win the event. His victory earned him a two-year exemption on the PGA Tour (through the 2015 season) and put him in the top-100 in the Official World Golf Ranking, moving from 241st to 74th.
2016
After finishing 162nd in the FedEx Cup during the 2015 season and failing to regain his PGA Tour card through the Web.com Tour Finals, Merrick balanced his season between the PGA Tour (past champion status) and Web.com Tour (category 6, 51st-75th on Finals money list).
Personal life
Merrick graduated from the University of California, Los Angeles in 2004 with a degree in Sociology. He resides in Long Beach, California.[2] He is married to the former Jody Schmidt, who was a member of UCLA's 2003 national championship water polo team, and has two children.