NASCAR, like many other sports, features a premier series and multiple minor divisions that help to develop talent and grow the sport. The NASCAR Cup series is the most well-known and prestigious series in the sport (previously known as the NASCAR Sprint Cup Series.) On Sundays, the majority of racing enthusiasts tune in to watch the NASCAR Cup series, which showcases the best drivers.
The NASCAR Xfinity Series is one tier beneath the premier series. The majority of racing fans and professionals consider this series to be "small league" stock car racing. Xfinity Series events often occurs at the same circuit as NASCAR Cup Series races. Typically, these minor league races occur the day before the main event.