DOVER, DELAWARE - MAY 17: Denny Hamlin, driver of the #11 Progressive Insurance Toyota, and Bubba Wallace, driver of the #23 Xfinity Toyota, leads the field to a restart during the NASCAR Cup Series All-Star Race at Dover Motor Speedway on May 17, 2026 in Dover, Delaware. (Photo by Meg Oliphant/Getty Images) | Getty Images
DOVER, DELAWARE - MAY 17: Denny Hamlin, driver of the #11 Progressive Insurance Toyota, and Bubba Wallace, driver of the #23 Xfinity Toyota, leads the field to a restart during the NASCAR Cup Series All-Star Race at Dover Motor Speedway on May 17, 2026 in Dover, Delaware. (Photo by Meg Oliphant/Getty Images) | Getty Images

NASCAR moves away from Nielsen big data for 2026 TV Ratings

Serving as Exhibit A that Nielsen Big Data is not a panacea for sports is NASCAR Cup Series coverage this season. Both sides are working through issues related to NASCAR’s data sets, and with that, NASCAR will be returning to the old panel vs. panel comparisons — and likely for the rest of the season.

The move came after a deep dive into the data, particularly around select demographics and metered markets.

It’s a decision that shifts narratives around Fox’s just-wrapped season of races. With Big Data vs. panel last year, Fox and FS1, averaging 3.3 million viewers, were down 1% for their points races (even after an 11% jump for the Daytona 500). But panel-to-panel, NASCAR would be up 1% for Fox Sports, which would have averaged 3.4 million viewers.

Sports Business Journal