Most-watched IndyCar telecasts of all time
Nielsen average audience, one figure per telecast; a final or revised figure replaces a preliminary one. Composites, peaks, reach and self-reported figures do not chart.
37
eligible telecasts
updated 2026-09-15
All eras
1
Indianapolis 500
6,711,000
2
Indianapolis 500
6,635,000
3
Indianapolis 500
6,500,000
4
Indianapolis 500
6,200,000
5
Indianapolis 500
6,000,000
6
Indianapolis 500
5,550,000
7
Indianapolis 500
5,500,000
8
Indianapolis 500
5,020,000
9
Indianapolis 500
4,900,000
10
Indianapolis 500
4,720,000
11
Indianapolis 500
4,620,000
12
Indianapolis 500
3,670,000
13
Freedom 250 Grand Prix of Washington, D.C.
3,280,000
14
IndyCar Road America
1,803,000
15
IndyCar Nashville
1,690,000
16
Firestone Grand Prix of St. Petersburg
1,410,000
17
IndyCar Arlington
1,336,000
18
IndyCar Mid-Ohio
1,300,000
19
IndyCar Texas
1,280,000
20
IndyCar Phoenix
1,247,000
21
Firestone Grand Prix of St. Petersburg
1,220,000
22
IndyCar St. Petersburg
1,190,000
23
IndyCar Nashville
1,142,000
24
IndyCar Nashville
1,110,000
25
Grand Prix of Portland
1,100,000
26
IndyCar Long Beach
1,060,000
27
Chevrolet Detroit Grand Prix
1,050,000
28
IndyCar Long Beach
1,030,000
29
IndyCar Milwaukee Mile
950,000
30
IndyCar Markham
913,000
31
Grand Prix of Portland
806,000
32
Firestone Grand Prix of Monterey
732,000
33
Firestone Grand Prix of St. Petersburg
671,000
34
Honda Indy 200 at Mid-Ohio
670,000
35
ABC Supply 500
549,000
36
Firestone Grand Prix of Monterey
538,000
37
IndyCar Long Beach
260,000
37 eligible telecasts · computed 2026-09-15 09:00 UTC
Rows span 3 Nielsen eras (Before Out-of-Home, Panel + Out-of-Home, Big Data + Panel); figures from different eras are not directly comparable. Each row carries its era.
Before Out-of-Home (1950–2020)
1
Indianapolis 500
6,711,000
2
Indianapolis 500
6,500,000
3
Indianapolis 500
6,200,000
4
Indianapolis 500
6,000,000
5
Indianapolis 500
5,500,000
6
Indianapolis 500
4,900,000
7
Indianapolis 500
3,670,000
8
IndyCar Texas
1,280,000
9
Grand Prix of Portland
1,100,000
10
Firestone Grand Prix of Monterey
732,000
11
Honda Indy 200 at Mid-Ohio
670,000
12
ABC Supply 500
549,000
13
IndyCar Long Beach
260,000
13 eligible telecasts · computed 2026-09-15 09:00 UTC
Panel + Out-of-Home (2020–2025)
1
Indianapolis 500
5,550,000
2
Indianapolis 500
5,020,000
3
Indianapolis 500
4,720,000
4
Indianapolis 500
4,620,000
5
IndyCar Nashville
1,690,000
6
Firestone Grand Prix of St. Petersburg
1,410,000
7
IndyCar Mid-Ohio
1,300,000
8
Firestone Grand Prix of St. Petersburg
1,220,000
9
IndyCar St. Petersburg
1,190,000
10
IndyCar Nashville
1,110,000
11
IndyCar Long Beach
1,060,000
12
Chevrolet Detroit Grand Prix
1,050,000
13
IndyCar Long Beach
1,030,000
14
Grand Prix of Portland
806,000
15
Firestone Grand Prix of St. Petersburg
671,000
16
Firestone Grand Prix of Monterey
538,000
16 eligible telecasts · computed 2026-09-15 09:00 UTC
Big Data + Panel (2025–current)
2 eligible telecasts · computed 2026-09-15 09:00 UTC
Era unstated
1
Indianapolis 500
6,635,000
2
IndyCar Road America
1,803,000
3
IndyCar Arlington
1,336,000
4
IndyCar Phoenix
1,247,000
5
IndyCar Milwaukee Mile
950,000
6
IndyCar Markham
913,000
6 eligible telecasts · computed 2026-09-15 09:00 UTC