Alsco Uniforms 500
Thanks in large part to the ratings boost NBC received in primetime hours, NASCAR made a decision to move the race date from Sunday afternoon to Saturday night from 2003 to 2016.In 2015 and 2016, the races on Saturday night were cancelled due to bad weather, so they were run on Sunday afternoon.At the 2017 event, after rain caused the Xfinity Series event of the Saturday afternoon to be delayed by several hours, a decision was made to move the Cup race an hour back to a 1:00 PM local time start, as more rain was expected later during the day.[1][2][3] Due to schedule changes resulting from the COVID-19 pandemic, Charlotte Motor Speedway hosted an additional 500-kilometer (312 mile) race in 2020 called the Alsco Uniforms 500 on the Wednesday following the Coca-Cola 600.[4] It was run as a replacement for the Toyota/Save Mart 350 at Sonoma Raceway after the track announced that NASCAR had canceled its events at the road course due to the pandemic.