The 20-year-old Western Australian fired four sub-par rounds at the Old White TPC Course to play his way into a share of 20th position and put beyond doubt his place in the year-ending Web.com Tour Finals.
Luck finished the tournament eight shots behind winner Xander Schauffele but in elite company alongside Phil Mickelson and Patrick Reed.
Schauffele, playing his rookie season on the PGA Tour, has had a meteoric rise in the game since finishing T5 at last month's US Open at Erin Hills.
The 23-year-old won by a stroke over fellow American Robert Streb thanks to a final hole birdie which left him almost speechless after the round.
“Just a typical first victory… I’m lost for words,” he told CBS’ Dottie Pepper beside the 18th green.
“It’s changed my life really… I need a little bit of time to take it all in.”
The shot that won the tournament for @XSchauffele.
Talk about coming up clutch. pic.twitter.com/vSP8Zg1UyY— PGA TOUR (@PGATOUR) July 10, 2017
While the win was life-changing for Schaeuffele, Luck’s performance was also important in a broader perspective with the reigning US Amateur champion now assured a chance to try to qualify for the 2018 Tour.
As a non-member of the Tour, Luck’s FedEx Cup points are not part of the official standings, however, they are tracked and he needs to be inside the top 200 to be eligible for a place in the Web.com Tour Finals series which will decide 25 of the 50 PGA Tour cards on offer next year.
With a total of 149 points after today’s finish, he is comfortably ahead of the 57 points currently holding down 200th place.
As Luck moved forward at the weekend, the news was less encouraging for the other two Australians to make the cut, Geoff Ogilvy and Matt Jones both going backwards.
Ogilvy shot a pair of 1-over 71s at the weekend to slip to T58 while Jones had a disastrous Saturday round and despite signing for a 1-under 70 on Sunday, finished T64.
The result saw Jones slip five places down the FedEx Cup standings to 137th and with limited tournaments left in the season, and no guaranteed starts, in danger of not regaining his Tour playing rights.