Episodes

[back to top] American Idol  Episodes (Semifinals only)

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# Date Episode / Theme #Cn #Pf Average Rating Hi Lo σ 0-19 20-39 40-59 60-79 80-100
1 39504 Feb 26, 2008
1970s
10 10
51.4
 
93 19 17.9 1 3 2 2 2
2 40604 Mar 2, 2011
Open
12 12
53.2
 
93 9 17.3 2 1 4 3 2
3 38041 Feb 24, 2004
Open
8 8
47.4
 
92 10 17.6 1 1 4 1 1
4 38777 Mar 1, 2006
Open
10 10
49.4
 
92 19 15.6 1 3 3 1 2
5 39141 Feb 28, 2007
Open
10 10
50.6
 
92 13 14.8 2 2 2 3 1
6 43556 Apr 1, 2019
Open
20 20
49.6
 
92 16 19.6 2 5 7 4 2
7 37684 Mar 4, 2003
Open
9 9
46.3
 
90 17 15.7 1 3 2 1 2
8 38411 Feb 28, 2005
Open
10 10
51.1
 
90 16 21.2 1 2 4 2 1
9 39511 Mar 4, 2008
1980s
8 8
56.8
 
90 12 15.9 1 1 2 2 2
10 40240 Mar 3, 2010
Billboard charts
10 10
53.0
 
90 6 16.4 1 3 2 2 2
11 40246 Mar 9, 2010
Billboard charts
8 8
51.8
 
90 14 13.3 1 2 2 2 1
12 40603 Mar 1, 2011
Open
12 12
50.9
 
90 5 16.7 1 4 2 2 3
13 39134 Feb 21, 2007
Open
12 12
52.3
 
88 13 15.2 2 4 0 3 3
14 39148 Mar 7, 2007
Open
8 8
50.3
 
88 17 14.8 1 1 3 2 1
15 38405 Feb 22, 2005
Open
12 12
46.7
 
87 13 18.8 1 5 2 2 2
16 38783 Mar 7, 2006
Open
8 8
50.4
 
87 12 18.5 1 1 4 1 1
17 42061 Feb 26, 2015
Open
12 12
46.5
 
87 9 17.2 2 2 5 1 2
18 43212 Apr 22, 2018
Open
14 14
47.1
 
87 10 17.9 3 3 4 2 2
19 37425 Jun 18, 2002
Open
10 10
41.4
 
86 9 18.1 3 1 4 1 1
20 41338 Mar 5, 2013
Open
10 10
54.0
 
86 5 15.3 1 2 3 2 2
21 43213 Apr 23, 2018
Open
14 14
50.5
 
86 8 20.5 1 4 4 4 1
22 38418 Mar 7, 2005
Open
8 8
50.4
 
85 16 17.6 1 2 3 1 1
23 38770 Feb 22, 2006
Open
12 12
49.2
 
85 7 16.5 1 4 3 2 2
24 40968 Feb 29, 2012
Open
12 12
52.9
 
85 11 14.5 2 2 2 4 2
25 42060 Feb 25, 2015
Open
12 12
47.0
 
85 10 18.0 2 3 2 4 1
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