NASCAR has announced that it will revert to panel‑only audience measurement for the remainder of the 2024 season, abandoning the Nielsen Big Data approach that has been in place since early summer.
Measurement Shift
The change follows a comparative analysis of select demographics and metered markets, which revealed that panel‑only ratings showed a 1% increase for Fox Sports‑aired races, whereas the Big Data methodology indicated a 1% decline.
Network partners Fox Sports and its cable sibling FS1 had been reporting average viewership of 3.3 million for points races under the Big Data system, a figure that slipped by 1% year‑over‑year; panel‑only data, by contrast, placed the same races at roughly 3.4 million viewers, a modest but notable uptick.
Viewership Trends
Series such as the O’Reilly Auto Parts Series on The CW and the Craftsman Truck Series have also benefited, with the former up 6% to an average of 1.3 million viewers and the latter climbing 19% to about 667,000 viewers, helped in part by more favorable weather conditions.
Brian Herbst, NASCAR’s executive vice president and chief media and revenue officer, said the move is intended to bring consistency across the sport’s broadcast partners and to ensure that performance metrics reflect true audience behavior.
The organization is currently in active discussions with Nielsen about future methodology adjustments, especially the rollout of impact data slated for late August, which could further influence how viewership is quantified.
While the new measurement framework promises clearer insights, industry analysts caution that the transition may affect advertising rates and sponsorship valuations until the new baseline stabilizes.