NASCAR reporter Michael Knight tweeted Thursday afternoon that Phoenix Raceway will again host NASCAR Championship weekend in 2021.
The 2021 NASCAR scheduled has not been released yet but could be announced before the end of the month.
November 2021 dates 5, 6, 7. March 2021 dates 5, 6, 7 for Cup, Xfinity, ARCA. Brochure includes standard wording "schedule subject to change." NASCAR has yet to officially release 2021 schedule.
— Michael Knight (@SpinDoctor500) July 16, 2020
An image of the brochure: