2021 Hollywood Casino 400
| Race details | |||
|---|---|---|---|
| Race 34 of 36 in the 2021 NASCAR Cup Series | |||
| Date | October 24, 2021 | ||
| Location | Kansas Speedway in Kansas City, Kansas | ||
| Course | Permanent racing facility | ||
| Course length | 1.5 miles (2.4 km) | ||
| Distance | 267 laps, 400.5 mi (640.8 km) | ||
| Average speed | 130.728 miles per hour (210.386 km/h) | ||
| Pole position | |||
| Driver | Hendrick Motorsports | ||
| Grid positions set by competition-based formula | |||
| Most laps led | |||
| Driver | Kyle Larson | Hendrick Motorsports | |
| Laps | 131 | ||
| Winner | |||
| No. 5 | Kyle Larson | Hendrick Motorsports | |
| Television in the United States | |||
| Network | NBCSN | ||
| Announcers | Rick Allen, Jeff Burton, Steve Letarte and Dale Earnhardt Jr. | ||
| Radio in the United States | |||
| Radio | MRN | ||
| Booth announcers | Alex Hayden, Jeff Striegle and Rusty Wallace | ||
| Turn announcers | Dave Moody (1 & 2) and Mike Bagley (3 & 4) | ||
The 2021 Hollywood Casino 400 was a NASCAR Cup Series race held on October 24, 2021, at Kansas Speedway in Kansas City, Kansas. Contested over 267 laps on the 1.5 mi (2.4 km) intermediate speedway, it was the 34th race of the 2021 NASCAR Cup Series season, the eighth race of the Playoffs, and second race of the Round of 8.