In December 2017, Champ tied for 16th in the Web.com Tour Qualifying Tournament. This earned him a place on the Web.com Tour for the start of 2018. During the
2018 Web.com Tour season, Champ won the 2018
Utah Championship in July 2018. On October 28, 2018, Champ won his first PGA Tour title by winning the
Sanderson Farms Championship with a score of −21. Over and above his win, Champ had an excellent 2018 Fall Series, finishing T25 at the
Safeway Open, T28 at the
Shriners Hospitals for Children Open, T10 at the
Mayakoba Golf Classic and 6th at the
RSM Classic. This brought his world ranking up to 97 as of November 19, 2018 and left him 6th on the
FedEx Cup standings heading into the 2019 calendar year. Champ is known for being one of the longest hitters on the
PGA Tour. In 2017, Champ registered a 129.79 mph average clubhead speed in his debut at the
OHL Classic at Mayakoba. Champ has worked with instructor
Sean Foley since age 14 and although he hits a lower ball flight than the average long hitter on the PGA Tour, Champ was the longest driver on tour for the 2018–19 season with a 317.1 yard average. For the 2018 Web.com tour season, Champ averaged 343.1 yards off the tee and led the 2017 U.S. Open in driving distance at 337 yards. On September 29, 2019, Champ won the
Safeway Open with a birdie at the 72nd hole. It was his first win in a full−strength PGA Tour tournament. On June 23, 2020, prior to the
Travelers Championship, Champ became the second PGA Tour player to test positive for
COVID-19 after
Nick Watney did the week before. On July 25, 2021, Champ scored a two stroke victory at the
3M Open after hitting a gap wedge on the 72nd hole from 127 yards to within 3 feet to save par. He had five birdies and no bogeys in his final round to shoot 15-under 269 at TPC Twin Cities.
Louis Oosthuizen,
Jhonattan Vegas and
Charl Schwartzel tied for second. ==Personal life==