How to watch NASCAR playoff race on Charlotte Roval. Also, 10-hour race at Road Atlanta

It's now-or-never time for a handful of NASCAR playoff racers as the final race in the Round of 12 goes green Sunday on the Charlotte Motor Speedway road course, known by all as the Roval, which is still rather young but acts a bit ornery.

Chase Elliott (eighth) and Joey Logano (ninth) sit on opposite sides of the playoff bubble after last Sunday at Talladega . Since only the top eight stay alive in the playoffs and move along to Las Vegas next week for ... that's right ... the Round of 8! Others are in danger of slipping below the line while others are on the outside looking in but within mathematical range.

Also this weekend, if you're a sports-car fan or simply looking for a cool mix of auto racing, NASCAR's sports-car arm — IMSA — concludes its 2024 season with the third longest race on its schedule, the 10-hour Petit Le Mans at Road Atlanta.

IMSA's WeatherTech Championship includes four classes of competition (GT Prototypes, Le Mans Prototypes, and two classes of GTD muscle cars — pro and pro-am). All four championships are on the line this week.

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Saturday at Charlotte Roval: Cup, Xfinity practice, qualifying and a race.

10 a.m.: Xfinity Series practice and qualifying (USA Network).

12:30 p.m.: Cup Series practice and qualifying (USA).

4 p.m.: Drive for the Cure 250 Xfinity Series race (CW).

Also Saturday: IMSA's 10-hour sports-car season finale from Road Atlanta

Noon : IMSA WeatherTech Championship from Road Atlanta — 10-hour Petit Le Mans (NBC, Peacock and USA).

Sunday: NASCAR Playoffs Round of 12 ends on Charlotte Roval

2:30 p.m.: NASCAR Cup Series playoffs, Bank of America Roval 400 (NBC).

This article originally appeared on The Daytona Beach News-Journal: How to watch NASCAR playoff race on Charlotte Roval. Also, 10-hour race at Road Atlanta