Cole Custer (Stewart-Haas Racing Ford) venceu a Quaker State 400, no Kentucky Speedway, 17ª etapa da NASCAR Cup Series. Foi a primeira vitória do rookie na categoria. Martin Truex Jr. (Joe Gibbs Racing Toyota) e Matt DiBenedetto (Wood Brothers Racing Ford) completaram os três primeiros.
Matt Kenseth (Chip Ganassi Racing Chevrolet) rodou na 262ª volta, provocando a oitava e última bandeira amarela. Na relargada, para mais duas voltas em bandeira verde, Custer surpreendeu, assumindo a ponta, para vencer com 0s271 de vantagem sobre Truex Jr. Â DiBenedetto foi o terceiro.
Kevin Harvick (Stewart-Haas Racing Ford) terminou em quarto, seguido por Kurt Busch Chip (Ganassi Racing Chevrolet).
Ryan Blaney (Team Penske Ford), Christopher Bell (Leavine Family Racing Toyota), Aric Almirola (Stewart-Haas Racing Ford), Brad Keselowski (Team Penske Ford) e Tyler Reddick (R) (Richard Childress Racing Chevrolet) completaram os dez primeiros.
Almirola venceu o primeiro estágio. E Keselowski o segundo.
A próxima etapa acontece no Bristol Motor Speedway, a All-Star Race, prova comemorativa que não conta pontos para o campeonato.
Harvick lidera o campeonato com 675 pontos, seguido por Kselowski com 587.
Final:
1 Cole Custer (R) Stewart-Haas Racing Ford 267 voltas
2 Martin Truex Jr. Joe Gibbs Racing Toyota 267
3 Matt DiBenedetto Wood Brothers Racing Ford 267
4 Kevin Harvick Stewart-Haas Racing Ford 267
5 Kurt Busch Chip Ganassi Racing Chevrolet 267
6 Ryan Blaney Team Penske Ford 267
7 Christopher Bell (R) Leavine Family Racing Toyota 267
8 Aric Almirola Stewart-Haas Racing Ford 267
9 Brad Keselowski Team Penske Ford 267
10 Tyler Reddick (R) Richard Childress Racing Chevrolet 267
11 William Byron Hendrick Motorsports Chevrolet 267
12 Denny Hamlin Joe Gibbs Racing Toyota 267
13 Austin Dillon Richard Childress Racing Chevrolet 267
14 Clint Bowyer Stewart-Haas Racing Ford 267
15 Joey Logano Team Penske Ford 267
16 Ty Dillon Germain Racing Chevrolet 267
17 Ryan Newman Roush Fenway Racing Ford 267
18 Jimmie Johnson Hendrick Motorsports Chevrolet 267
19 Alex Bowman Hendrick Motorsports Chevrolet 267
20 Chris Buescher Roush Fenway Racing Ford 267
21 Kyle Busch Joe Gibbs Racing Toyota 267
22 Erik Jones Joe Gibbs Racing Toyota 267
23 Chase Elliott Hendrick Motorsports Chevrolet 267
24 Michael McDowell Front Row Motorsports Ford 267
25 Matt Kenseth Chip Ganassi Racing Chevrolet 267
26 Daniel Suárez Gaunt Brothers Racing Toyota 267
27 Bubba Wallace Richard Petty Motorsports Chevrolet 265
28 Corey LaJoie Go Fas Racing Ford 264
29 Ricky Stenhouse Jr. JTG Daugherty Racing Chevrolet 264
30 J. J. Yeley (i) Rick Ware Racing Ford 260
31 Brennan Poole (R) Rick Ware Racing Chevrolet 259
32 Josh Bilicki (i) Spire Motorsports Chevrolet 257
33 Garrett Smithley (i) Rick Ware Racing Chevrolet 257
34 Joey Gase (i) Petty Ware Racing Ford 257
35 Quin Houff (R) StarCom Racing Chevrolet 255
36 John Hunter Nemechek (R) Front Row Motorsports Ford 248
37 Timmy Hill (i) MBM Motorsports Toyota 170
38 Ryan Preece JTG Daugherty Racing Chevrolet 159