The 2018 PowerShares QQQ 300 was the 1st stock car race of the 2018 NASCAR Xfinity Series season, and the 37th iteration of the event. The race was held on Saturday, February 17, 2018 in Daytona Beach, Florida at Daytona International Speedway, a 2.5 miles (4.0 km) permanent triangular-shaped superspeedway. The race was extended from the scheduled 120 laps to 143 laps due to five NASCAR overtime attempts. At race's end, Tyler Reddick of JR Motorsports would best out teammate Elliott Sadler in the closest finish in NASCAR history, beating Sadler out by only 0.0004 seconds. To fill out the podium, Ryan Reed of Roush Fenway Racing would finish 3rd.