UPDATE: Sunday's NASCAR Cup Series from Las Vegas earned a 2.9 rating and 4.7 million viewers on FOX, down 19% in ratings and 21% in viewership from last year (3.6, 6.0M) and down 34% and 35% respectively from 2016 (4.4, 7.2M).
Kevin Harvick's win ranks as the lowest rated Las Vegas race ever (dates back to 1998), falling below the previous low set last year. It was the least-watched at the track since at least 2001. Ratings and viewership have declined in three straight years.
The 2.9 rating is tied as the fourth-lowest ever for any Cup Series race on FOX.
Despite the lower numbers, Sunday's race was the highest rated and most-watched sporting event of the weekend. It beat the #2 event, the PGA-WGC Mexico Championship, head-to-head (2.55, 3.9M).
http://www.espn.com/jayski/cup/2018/story/_/id/22653772