LAS VEGAS – Chase Briscoe, the top-seeded driver in the NASCAR Xfinity Series playoffs, will lead the field to green for the postseason opener at Las Vegas Motor Speedway on Saturday. The NASCAR matrix factors in a driver’s lap speed ranking from the previous race, the last race finish for both driver and owner and the car’s current rank in the owner standings. Lap speed is weighted at 15 percent, previous race finish at 25 percent for the driver and owner results and owner points position at 35 percent to calculate the final metric score. Driver and owner playoff-eligible entries are ranked at the front of the field based on their metric scores from lowest to highest, with all non-playoff entries lined up behind the playoff cars in similar fashion. Alfredo and Hemric are both driving for teams that made the owner playoffs.

Follow MotorMouth on social media:

• 
• 
• 
•