In early August 2019, Schauffele placed 4th in the inaugural 2019 Wyndham Rewards Top 10, thus entering the 2019 Playoffs in 4th position in the FedEx Cup rankings. In accordance with the new 2019 playoff format, Schauffele found himself in 8th position after the first two of a total of three playoff events and arrived at East Lake Golf Club for the playing of the 2019 Tour Championship with a 6 shot deficit to initially #1 positioned Justin Thomas. Schauffele was able to erase the deficit after the very first round with a score of 6-under-par 64 and was tied for the lead going into Friday.On Sunday August 25, Schauffele finished out the season with a solo second place at the 2019 Tour Championship, which also placed him in a solo second position in the 2019 FedEx Cup – his highest finish to date.
PGA Championship: With a final-round 3-under 68 (including six birdies and three bogeys) leading to a 72-hole score of 8-under 276, finished two strokes clear of Francesco Molinari, Patrick Reed and Louis Oosthuizen to win his first major championship title (in 10 major starts) at the 99th PGA Championship at Quail Hollow Club. While his round included multiple highlights – including a 36-foot birdie putt on No. 9, a 40-foot chip in for birdie on No. 13 and a perfectly struck 7 iron from 221 yards to 15 feet for birdie on the par-3 17th hole – it was the 10th hole that will be the most memorable moment of his victory. His eight-foot birdie putt on the 10th hole somehow failed to go in, hanging on the lip for 12 seconds before finally falling in. Won for the fifth time on the PGA TOUR, with four of those victories coming during the 2016-17 season. Coupled with Jordan Spieth's victory at The Open Championship, marked the first time since 1923 (Bobby Jones/U.S. Open, Gene Sarazen/PGA Championship) that different players aged 25 or younger won in back-to-back majors. The son of Mike and Jani Thomas, his victory marked the eighth time the son of a PGA of America Professional won the PGA Championship, most recently by Keegan Bradley in 2011. Winning in his 90th career start at the age of 24 years, 3 months and 15 days, notched the 26th win by a player in his 20s on TOUR during the season. Collected 600 points to move from No. 4 to No. 2 in the FedExCup standings. In addition, earned a five-year exemption on the PGA TOUR. Entered the final round trailing Kevin Kisner by two strokes, marking the 15th come-from-behind victory in the last 17 PGA TOUR events.
PGA TOUR rookie claimed seven top-10 finishes in 27 starts to earn a berth into the FedExCup Playoffs. At the BMW Championship, the third of four Playoffs events, finished T13 at Conway Farms GC, but came up just five points shy of finishing 30th in the FedExCup standings and moving on to the TOUR Championship by Coca-Cola. Ended the season ranked 32nd in the FedExCup standings.