date date the telecast's air date. On a series row, the year. Methodology →	telecast telecast the telecast the figure is attached to, with its air date. A figure with no telecast row is listed without one. Methodology →	figure figure the telecast's lead figure: Nielsen average audience, full telecast, as published. Blank when Nielsen has not published one. Methodology →
2021-09-12	Grand Prix of Portland	806,000
2021-07-04	IndyCar Mid-Ohio	1,300,000
2021-05-30	Indianapolis 500	5,550,000
2021-04-25	Firestone Grand Prix of St. Petersburg	1,220,000