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.
40
eligible telecasts
updated 2026-10-30
All eras
1
Indianapolis 500
7,050,000
2
Indianapolis 500
6,711,000
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
5,410,000
9
Indianapolis 500
5,020,000
10
Indianapolis 500
4,900,000
11
Indianapolis 500
4,720,000
12
Indianapolis 500
4,620,000
13
Indianapolis 500
3,670,000
14
Freedom 250 Grand Prix of Washington, D.C.
3,280,000
15
IndyCar Road America
1,803,000
16
IndyCar Nashville
1,690,000
17
Indianapolis 500
1,590,000
18
IndyCar St. Petersburg
1,420,000
19
Firestone Grand Prix of St. Petersburg
1,410,000
20
IndyCar Arlington
1,336,000
21
IndyCar Mid-Ohio
1,300,000
22
IndyCar Texas
1,280,000
23
IndyCar Phoenix
1,247,000
24
Firestone Grand Prix of St. Petersburg
1,220,000
25
IndyCar St. Petersburg
1,190,000
26
IndyCar Nashville
1,142,000
27
IndyCar Nashville
1,110,000
28
Grand Prix of Portland
1,100,000
29
IndyCar Long Beach
1,060,000
30
Chevrolet Detroit Grand Prix
1,050,000
31
IndyCar Long Beach
1,030,000
32
IndyCar Milwaukee Mile
950,000
33
IndyCar Markham
913,000
34
Grand Prix of Portland
806,000
35
Firestone Grand Prix of Monterey
732,000
36
Firestone Grand Prix of St. Petersburg
671,000
37
Honda Indy 200 at Mid-Ohio
670,000
38
ABC Supply 500
549,000
39
Firestone Grand Prix of Monterey
538,000
40
IndyCar Long Beach
260,000
40 eligible telecasts · computed 2026-10-30 20:36 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
5,410,000
7
Indianapolis 500
4,900,000
8
Indianapolis 500
3,670,000
9
IndyCar Texas
1,280,000
10
Grand Prix of Portland
1,100,000
11
Firestone Grand Prix of Monterey
732,000
12
Honda Indy 200 at Mid-Ohio
670,000
13
ABC Supply 500
549,000
14
IndyCar Long Beach
260,000
14 eligible telecasts · computed 2026-10-30 20:36 UTC
Panel + Out-of-Home (2020–2025)
1
Indianapolis 500
7,050,000
2
Indianapolis 500
5,550,000
3
Indianapolis 500
5,020,000
4
Indianapolis 500
4,720,000
5
Indianapolis 500
4,620,000
6
IndyCar Nashville
1,690,000
7
IndyCar St. Petersburg
1,420,000
8
Firestone Grand Prix of St. Petersburg
1,410,000
9
IndyCar Mid-Ohio
1,300,000
10
Firestone Grand Prix of St. Petersburg
1,220,000
11
IndyCar St. Petersburg
1,190,000
12
IndyCar Nashville
1,110,000
13
IndyCar Long Beach
1,060,000
14
Chevrolet Detroit Grand Prix
1,050,000
15
IndyCar Long Beach
1,030,000
16
Grand Prix of Portland
806,000
17
Firestone Grand Prix of St. Petersburg
671,000
18
Firestone Grand Prix of Monterey
538,000
18 eligible telecasts · computed 2026-10-30 20:36 UTC
Big Data + Panel (2025–current)
1
Freedom 250 Grand Prix of Washington, D.C.
3,280,000
2
IndyCar Road America
1,803,000
3
Indianapolis 500
1,590,000
4
IndyCar Arlington
1,336,000
5
IndyCar Phoenix
1,247,000
6
IndyCar Nashville
1,142,000
7
IndyCar Milwaukee Mile
950,000
8
IndyCar Markham
913,000
8 eligible telecasts · computed 2026-10-30 20:36 UTC