Racing underway at Cup series race at Kansas Speedway Racing is underway at the NASCAR Cup series race, the Buschy McBusch 400, on Sunday afternoon at the Kansas Speedway. (Fan photo copyright 2021 by Steve Rupert) At the Kansas Speedway on Sunday afternoon for the NASCAR Cup series race, the Buschy McBusch 400, on Sunday afternoon at the Kansas Speedway. (Fan photo copyright 2021 by Steve Rupert) At the Kansas Speedway on Sunday afternoon for the NASCAR Cup series race, the Buschy McBusch 400, on Sunday afternoon at the Kansas Speedway. (Fan photo copyright 2021 by Steve Rupert) At the Kansas Speedway on Sunday afternoon for the NASCAR Cup series race, the Buschy McBusch 400, on Sunday afternoon at the Kansas Speedway. (Fan photo copyright 2021 by Steve Rupert)