@NBC earned a 2.7 overnight rating for yesterday's @MonsterEnergy NASCAR Cup Series season finale @HomesteadMiami, down from a 3.3 for last year's race. https://twitter.com/A_S12/status/932632387086962688— Adam Stern (@A_S12) November 20, 2017
UPDATE: The NASCAR Cup Series finale from Homestead earned a 2.8 rating and 4.7 million viewers on NBC and NBCSN last Sunday, down 20% in ratings and 23% in viewership from last year (3.5, 6.1M), and down 36% and 39% respectively from 2015 (4.4, 7.6M).
Martin Truex Jr.'s win, which clinched the Cup Series title, delivered the lowest rating in the history of the race (dates back to 1999) and the smallest audience since at least 2001. The previous lows were a 3.0 and 4.8 million on ESPN in 2012.
Not helping matters was Sunday's relatively early finish of 6:44pm/et. Race coverage bled into primetime the previous two years, with the 2015 race nearly preempting all of NBC's Football Night in America NFL pregame. Viewership peaked at 6.3 million from 6:15-6:30pm/etT, compared to a peak of 8.4 million last year (from 6:45-7) and 12.4 million in 2015 (7:45-7:56).
Overall, the complete NASCAR Cup Series season averaged 4.1 million viewers across NBC, NBCSN, FOX and FS1, per Sports Business Daily - down 11% from last year (4.6M) and down 18% from 2015 (5.0M), both of which exclude rainouts. Compared to the 2014 season, the last under the previous TV deal, viewership fell 22% from 5.3 million.
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