1 Joost Luiten produced a memorable hole in one at the par-three fourth in the first round.
2 To date, the only two players to win the PGA Championship after winning the week before are Rory McIlroy (2014 WGC-Bridgestone Invitational) and Tiger Woods (2007, WGC-Bridgestone Invitational). Hideki Matsuyama or Chris Stroud could have made it three.
3 Number of seasons without a major for McIlroy, who finished in a tie for 22nd.
4 Louis Oosthuizen has now finished second in all four of the game's major championships.
5 In the fifth hole of the final round, McIlroy holed his longest putt of the week - from 16ft 8in - for birdie.
6 For the sixth successive year, play was disrupted by bad weather with a delay of one hour and 43 minutes on Friday.
7 Seven under par (64) was the best round of the week, shot by Matsuyama and Francesco Molinari on Day 2.
8 Number of shots taken by Jason Day on the 18th hole in round three after a risky recovery shot backfired.
9 Jon Rahm's age in months the last time Phil Mickelson missed the cut in the US PGA, in 1995.
10 Jimmy Walker's opening round as defending champion was a 10-over-par 81.
11 The par-four 11th coincidentally ranked as the 11th hardest hole overall with a scoring average of 4.192.
12 Paul Casey was a combined 12 under par for his first round in this year's majors.
13 The average world ranking of the last 13 PGA winners before this week was 25. Kevin Kisner began the week ranked 25th.
14 The world ranking of Justin Thomas before his victory.
15 Of the top 15 players after 54 holes, only Oosthuizen had previously won a major.
16 The par-four 16th marks the start of Quail Hollow's so-called "Green Mile" of finishing holes, some of the toughest in golf.
17 The first round scoring average of the last 17 major champions was 67.2. Kisner and Thorbjorn Olesen shot 67 on day one at Quail Hollow.
18 For the first time in 18 majors, the eventual winner was over par after round one (Thomas shot 73).