Diverging Metrics
The latest Cup Series race streamed on Prime Video produced markedly different audience numbers depending on how they were measured.
When Nielsen's 'Big Data + Panel' methodology is applied, the broadcast earned a 1.0 rating and attracted 2.07 million viewers, representing a 17 percent increase over the same race a year earlier.
In contrast, the 'panel-only' approach yields a 0.9 rating and 1.81 million viewers, a 3 percent dip compared with the prior year.
Season-Long Trends
Across the season's opening three races the Big Data figure averaged 2.45 million viewers, an 8 percent rise year-over-year, and consistently outpaced the panel-only equivalent by double-digit percentages.
A Shift in Reporting
After the Fox Sports portion of the schedule concluded NASCAR announced it would stop publishing the Big Data numbers and revert to the more traditional panel-only reporting.
The post-race program on Prime Video illustrates the gap: the 'Big Data + Panel' audience averaged 1.10 million viewers whereas the panel-only count was just 591,000.
Industry-Wide Implications
NASCAR now stands as the sole major sports property openly sharing panel-only figures, a practice that enables direct comparisons between the two metrics.