NASCAR Cup 2018 Fontana
| Cla | # | Piloto | Fabricante | Tempo | Diferença | Mph | |
|---|---|---|---|---|---|---|---|
| 1 | 78 | Martin Truex Jr. | Toyota | 38.592 | 186.567 | ||
| 2 | 18 | Kyle Busch | Toyota | 38.619 | 0.027 | 186.437 | |
| 3 | 42 | Kyle Larson | Chevrolet | 38.683 | 0.091 | 186.128 | |
| 4 | 20 | Erik Jones | Toyota | 38.700 | 0.108 | 186.047 | |
| 5 | 3 | Austin Dillon | Chevrolet | 38.770 | 0.178 | 185.711 | |
| 6 | 22 | Joey Logano | Ford | 38.798 | 0.206 | 185.577 | |
| 7 | 41 | Kurt Busch | Ford | 38.880 | 0.288 | 185.185 | |
| 8 | 12 | Ryan Blaney | Ford | 38.903 | 0.311 | 185.076 | |
| 9 | 31 | Ryan Newman | Chevrolet | 38.951 | 0.359 | 184.848 | |
| 10 | 4 | Kevin Harvick | Ford | 39.038 | 0.446 | 184.436 | |
| 11 | 2 | Brad Keselowski | Ford | 39.054 | 0.462 | 184.360 | |
| 12 | 37 | Chris Buescher | Chevrolet | 39.058 | 0.466 | 184.341 | |
| 13 | 6 | Trevor Bayne | Ford | 38.973 | 0.381 | 184.743 | |
| 14 | 21 | Paul Menard | Ford | 39.004 | 0.412 | 184.596 | |
| 15 | 1 | Jamie McMurray | Chevrolet | 39.106 | 0.514 | 184.115 | |
| 16 | 17 | Ricky Stenhouse Jr. | Ford | 39.169 | 0.577 | 183.819 | |
| 17 | 13 | Ty Dillon | Chevrolet | 39.198 | 0.606 | 183.683 | |
| 18 | 32 | Matt DiBenedetto | Ford | 39.259 | 0.667 | 183.397 | |
| 19 | 43 | Darrell Wallace Jr. | Chevrolet | 39.377 | 0.785 | 182.848 | |
| 20 | 23 | Gray Gaulding | Toyota | 41.105 | 2.513 | 175.161 | |
| 21 | 38 | David Ragan | Ford | 0.000 | 0.000 | ||
| 22 | 34 | Michael McDowell | Ford | 0.000 | 0.000 | ||
| 23 | 00 | Jeffrey Earnhardt | Chevrolet | 0.000 | 0.000 | ||
| 24 | 55 | Reed Sorenson | Chevrolet | 0.000 | 0.000 | ||
| 25 | 11 | Denny Hamlin | Toyota | 0.000 | 0.000 | ||
| 26 | 14 | Clint Bowyer | Ford | 0.000 | 0.000 | ||
| 27 | 10 | Aric Almirola | Ford | 0.000 | 0.000 | ||
| 28 | 88 | Alex Bowman | Chevrolet | 0.000 | 0.000 | ||
| 29 | 24 | William Byron | Chevrolet | 0.000 | 0.000 | ||
| 30 | 19 |  Daniel Suarez | Toyota | 0.000 | 0.000 | ||
| 31 | 9 | Chase Elliott | Chevrolet | 0.000 | 0.000 | ||
| 32 | 47 | A.J. Allmendinger | Chevrolet | 0.000 | 0.000 | ||
| 33 | 48 | Jimmie Johnson | Chevrolet | 0.000 | 0.000 | ||
| 34 | 95 | Kasey Kahne | Chevrolet | 0.000 | 0.000 | ||
| 35 | 51 | Timmy Hill | Chevrolet | 0.000 | 0.000 | ||
| 36 | 15 | Ross Chastain | Chevrolet | 0.000 | 0.000 | ||
| 37 | 72 | Cole Whitt | Chevrolet | 0.000 | 0.000 |