| Official Race Results | ||||||||
| Quaker State 400 | Kentucky Speedway | ||||||||
| July 14, 2018 | Race 19 of 36 | ||||||||
| Average Speed: 150.5 MPH | ||||||||
| Time of Race: 2 hours 39 minutes 43 seconds | ||||||||
| Lead Changes: 14 among 7 drivers | ||||||||
| Cautions: 4 for 22 laps | ||||||||
| Fin | St | # | Driver | Make | Sponsor | Pts | Laps | Status |
| 1 | 1 | 78 | Martin Truex Jr | Toyota | Auto-Owners Insurance | 60 | 267 | Running |
| 2 | 7 | 12 | Ryan Blaney | Ford | DEX Imaging | 50 | 267 | Running |
| 3 | 4 | 2 | Brad Keselowski | Ford | Discount Tire | 34 | 267 | Running |
| 4 | 5 | 18 | Kyle Busch | Toyota | Snickers Intense | 50 | 267 | Running |
| 5 | 3 | 4 | Kevin Harvick | Ford | Busch Light | 48 | 267 | Running |
| 6 | 9 | 41 | Kurt Busch | Ford | Monster Energy/Haas Automation | 35 | 267 | Running |
| 7 | 2 | 20 | Erik Jones | Toyota | Freightliner | 32 | 267 | Running |
| 8 | 12 | 10 | Aric Almirola | Ford | Smithfield | 31 | 267 | Running |
| 9 | 18 | 42 | Kyle Larson | Chevrolet | Credit One Bank | 37 | 267 | Running |
| 10 | 19 | 22 | Joey Logano | Ford | Shell Pennzoil | 30 | 267 | Running |
| 11 | 6 | 21 | Paul Menard | Ford | Menards/Quaker State | 33 | 267 | Running |
| 12 | 8 | 14 | Clint Bowyer | Ford | Haas 30 Years of… | 35 | 267 | Running |
| 13 | 16 | 9 | Chase Elliott | Chevrolet | NAPA Auto Parts | 25 | 267 | Running |
| 14 | 27 | 48 | Jimmie Johnson | Chevrolet | Lowe's/Jimmie Johnson Foundation | 23 | 267 | Running |
| 15 | 11 | 19 | Daniel Suarez | Toyota | ARRIS | 26 | 267 | Running |
| 16 | 36 | 11 | Denny Hamlin | Toyota | FedEx Office | 21 | 267 | Running |
| 17 | 22 | 1 | Jamie McMurray | Chevrolet | Arctic Cat | 20 | 267 | Running |
| 18 | 24 | 38 | David Ragan | Ford | MDS Transport | 19 | 267 | Running |
| 19 | 17 | 6 | Matt Kenseth | Ford | Performance Plus Motor Oil | 18 | 267 | Running |
| 20 | 21 | 24 | William Byron | Chevrolet | Liberty University | 17 | 267 | Running |
| 21 | 10 | 31 | Ryan Newman | Chevrolet | Caterpillar | 16 | 267 | Running |
| 22 | 13 | 3 | Austin Dillon | Chevrolet | AAA | 15 | 266 | Running |
| 23 | 20 | 37 | Chris Buescher | Chevrolet | Gain | 14 | 266 | Running |
| 24 | 23 | 34 | Michael McDowell | Ford | Love's Travel Stops/Roller Bites | 13 | 266 | Running |
| 25 | 29 | 95 | Kasey Kahne | Chevrolet | Dark Matter presented by… | 12 | 266 | Running |
| 26 | 14 | 17 | Ricky Stenhouse Jr | Ford | Fifth Third Bank | 11 | 266 | Running |
| 27 | 25 | 43 | Darrell Wallace Jr | Chevrolet | Petty's Garage/Medallion Bank | 10 | 264 | Running |
| 28 | 30 | 15 | Ross Chastain | Chevrolet | Unsponsored | 0 | 263 | Running |
| 29 | 28 | 13 | Ty Dillon | Chevrolet | GEICO | 8 | 263 | Running |
| 30 | 26 | 47 | AJ Allmendinger | Chevrolet | Kroger ClickList | 7 | 262 | Running |
| 31 | 31 | 72 | Corey LaJoie | Chevrolet | Monarch | 6 | 260 | Running |
| 32 | 34 | 51 | BJ McLeod | Chevrolet | Prefund Capital | 0 | 256 | Running |
| 33 | 33 | 0 | Landon Cassill | Chevrolet | StarCom Fiber | 4 | 256 | Running |
| 34 | 39 | 66 | Timmy Hill | Toyota | Crypto Crow | 0 | 254 | Running |
| 35 | 38 | 7 | Jesse Little | Chevrolet | Unsponsored | 0 | 253 | Running |
| 36 | 35 | 99 | Garrett Smithley | Chevrolet | Victory Lane Quick Oil… | 0 | 251 | Running |
| 37 | 37 | 32 | Matt DiBenedetto | Ford | Keen Parts/CorvetteParts.net | 1 | 200 | Vibration |
| 38 | 32 | 23 | JJ Yeley | Toyota | Steakhouse Elite | 0 | 199 | Engine |
| 39 | 15 | 88 | Alex Bowman | Chevrolet | Axalta | 1 | 108 | Crash |