| Official Race Results | ||||||||
| Auto Club 400 - California Speedway | ||||||||
| March 18, 2018 Race 5 of 36 | ||||||||
| Average Speed: 147.5 M.P.H. | ||||||||
| Time of Race: 2 Hrs, 42 Min, 41 Sec | ||||||||
| Lead Changes: 16 among 7 drivers | ||||||||
| Cautions: 5 for 21 laps | ||||||||
| Fin | St | # | Driver | Make | Sponsor | Pts | Laps | Status |
| 1 | 1 | 78 | Martin Truex Jr | Toyota | Bass Pro Shops/5-hour ENERGY | 60 | 200 | Running |
| 2 | 3 | 42 | Kyle Larson | Chevrolet | DC Solar | 43 | 200 | Running |
| 3 | 2 | 18 | Kyle Busch | Toyota | Interstate Batteries | 51 | 200 | Running |
| 4 | 11 | 2 | Brad Keselowski | Ford | Wurth | 49 | 200 | Running |
| 5 | 6 | 22 | Joey Logano | Ford | AAA Southern California | 45 | 200 | Running |
| 6 | 25 | 11 | Denny Hamlin | Toyota | FedEx Express | 39 | 200 | Running |
| 7 | 4 | 20 | Erik Jones | Toyota | SiriusXM | 39 | 200 | Running |
| 8 | 8 | 12 | Ryan Blaney | Ford | PPG | 29 | 200 | Running |
| 9 | 33 | 48 | Jimmie Johnson | Chevrolet | Lowe's for Pros | 38 | 200 | Running |
| 10 | 5 | 3 | Austin Dillon | Chevrolet | Dow Coating | 27 | 200 | Running |
| 11 | 26 | 14 | Clint Bowyer | Ford | Rush Truck Centers | 30 | 199 | Running |
| 12 | 27 | 10 | Aric Almirola | Ford | Smithfield | 25 | 199 | Running |
| 13 | 28 | 88 | Alex Bowman | Chevrolet | Nationwide | 24 | 199 | Running |
| 14 | 7 | 41 | Kurt Busch | Ford | Haas Automation/Monster Energy | 27 | 199 | Running |
| 15 | 29 | 24 | William Byron | Chevrolet | AXALTA | 23 | 199 | Running |
| 16 | 31 | 9 | Chase Elliott | Chevrolet | NAPA Auto Parts | 21 | 199 | Running |
| 17 | 15 | 1 | Jamie McMurray | Chevrolet | McDonald's | 20 | 199 | Running |
| 18 | 16 | 17 | Ricky Stenhouse Jr | Ford | Ford | 19 | 199 | Running |
| 19 | 14 | 21 | Paul Menard | Ford | Menards/FVP | 18 | 199 | Running |
| 20 | 19 | 43 | Darrell Wallace Jr | Chevrolet | Farmer John | 17 | 199 | Running |
| 21 | 9 | 31 | Ryan Newman | Chevrolet | Chevrolet Accessories | 16 | 199 | Running |
| 22 | 32 | 47 | AJ Allmendinger | Chevrolet | Kroger ClickList | 15 | 199 | Running |
| 23 | 30 | 19 | Daniel Suarez | Toyota | ARRIS | 14 | 199 | Running |
| 24 | 34 | 95 | Kasey Kahne | Chevrolet | WRL General Contractors | 13 | 199 | Running |
| 25 | 21 | 38 | David Ragan | Ford | 1000Bowls.com | 12 | 199 | Running |
| 26 | 22 | 34 | Michael McDowell | Ford | Love's Travel Stops | 11 | 199 | Running |
| 27 | 17 | 13 | Ty Dillon | Chevrolet | Twisted Tea | 10 | 198 | Running |
| 28 | 37 | 72 | Cole Whitt | Chevrolet | SoCal Chevy | 9 | 198 | Running |
| 29 | 36 | 15 | Ross Chastain | Chevrolet | LowT Center | 0 | 198 | Running |
| 30 | 12 | 37 | Chris Buescher | Chevrolet | Healthy Choice Power Bowls | 7 | 197 | Running |
| 31 | 18 | 32 | Matt DiBenedetto | Ford | Can-Am/Wholey | 6 | 196 | Running |
| 32 | 20 | 23 | Gray Gaulding | Toyota | Earthwater | 5 | 194 | Running |
| 33 | 35 | 51 | Timmy Hill | Chevrolet | Bubba Burgers | 0 | 193 | Running |
| 34 | 24 | 55 | Reed Sorenson | Chevrolet | Unsponsored | 3 | 193 | Running |
| 35 | 10 | 4 | Kevin Harvick | Ford | Busch Beer | 2 | 191 | Running |
| 36 | 23 | 0 | Jeffrey Earnhardt | Chevrolet | VRX Simulators | 1 | 189 | Running |
| 37 | 13 | 6 | Trevor Bayne | Ford | Perfomance Plus | 1 | 108 | Crash |