Simplify the following text for a Grade 3 native English-speaking person.
Original: However , over the last several years , a number of Sprint Cup drivers have run both the Nationwide and Sprint Cup series events each weekend , using the Nationwide race as a warm-up to the Cup event at the same facility . Detractors of this practice believe this gives the Sprint Cup teams an unfair advantage , and that the presence of the Sprint Cup drivers squeezes out Nationwide Series competitors who would otherwise be able to qualify .
Simplified: Drivers who wish to drive in the Sprint Cup often race here first .