Austin Dillon (Richard Childress Racing Chevrolet) conquistou nesta sexta-feira (15/03) a pole-position para a                Auto Club 400, no Auto Club Speedway, em Fontana, quinta etapa da Monster Energy NASCAR Cup Series. Foi a primeira pole de Dillon no ano, e quarta na categoria.
Na terceira e decisiva parte do treino, nenhum dos 12 pilotos conseguiu marca tempo, após adiarem ao máximo a entrada na pista (e não cruzarem a linha de tempo antes dos cinco minutos finais do tempo expirar).
Com isso o grid foi definido pelos tempo do segundo round, e Dillon com o tempo de 39s982 (180,081 mph), alinha ela segunda vez na pole em Fontana.
Kevin Harvick (Stewart-Haas Racing Ford) completa a primeira fila. Aric Almirola (Stewart-Haas Racing Ford) divide a segunda fila com o lÁder do campeonato Kyle Busch (Joe Gibbs Racing Toyota).
Joey Logano (Team Penske Ford) e Denny Hamlin (Joe Gibbs Racing Toyota) formam a terceira fila.
Ryan Newman (Roush Fenway Racing Ford) alinha em sétimo, seguido por Chase Elliot (Hendrick Motorsports Chevrolet). Clint Bowyer (Stwart-Haas Racing Ford) e Ryan Blaney (Team Penske) completam os dez primeiros.
Grid:
1 3 Austin Dillon Richard Childress Racing Chevrolet 39.982
2 4 Kevin Harvick Stewart-Haas Racing Ford 40.137
3 10 Aric Almirola Stewart-Haas Racing Ford 40.205
4 18 Kyle Busch Joe Gibbs Racing Toyota 40.247
5 22 Joey Logano Team Penske Ford 40.248
6 11 Denny Hamlin Joe Gibbs Racing Toyota 40.312
7 6 Ryan Newman Roush Fenway Racing Ford 40.334
8 9 Chase Elliott Hendrick Motorsports Chevrolet 40.356
9 14 Clint Bowyer Stewart-Haas Racing Ford 40.368
10 12 Ryan Blaney Team Penske Ford 40.378
11 48 Jimmie Johnson Hendrick Motorsports Chevrolet 40.380
12 17 Ricky Stenhouse Jr. Roush Fenway Racing Ford 40.405
13 2 Brad Keselowski Team Penske Ford 40.448
14 37 Chris Buescher JTG Daugherty Racing Chevrolet 40.491
15 42 Kyle Larson Chip Ganassi Racing Chevrolet 40.505
16 13 Ty Dillon Germain Racing Chevrolet 40.523
17 8 Daniel Hemric (R) Richard Childress Racing Chevrolet 40.545
18 20 Erik Jones Joe Gibbs Racing Toyota 40.590
19 38 David Ragan Front Row Motorsports Ford 40.613
20 41 Daniel Suárez Stewart-Haas Racing Ford 40.620
21 1 Kurt Busch Chip Ganassi Racing Chevrolet 40.644
22 24 William Byron Hendrick Motorsports Chevrolet 40.733
23 88 Alex Bowman Hendrick Motorsports Chevrolet 41.141
24 95 Matt DiBenedetto Leavine Family Racing Toyota 41.497
25 21 Paul Menard Wood Brothers Racing Ford 40.534
26 47 Ryan Preece (R) JTG Daugherty Racing Chevrolet 40.572
27 19 Martin Truex Jr. Joe Gibbs Racing Toyota 40.580
28 43 Darrell Wallace Jr. Richard Petty Motorsports Chevrolet 40.666
29 34 Michael McDowell Front Row Motorsports Ford 40.874
30 32 Corey LaJoie Go Fas Racing Ford 40.941
31 15 Ross Chastain (i) Premium Motorsports Chevrolet 41.158
32 36 Matt Tifft (R) Front Row Motorsports Ford 41.184
33 00 Landon Cassill StarCom Racing Chevrolet 41.400
34 51 Cody Ware Rick Ware Racing Chevrolet 41.745
35 27 Reed Sorenson Premium Motorsports Chevrolet 42.442
36 52 B. J. McLeod (i) Rick Ware Racing Ford 42.755
37 77 Garrett Smithley (i) Spire Motorsports Chevrolet 42.806
38 66 Joey Gase (i) MBM Motorsports Toyota 43.519