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 39511 Mar 4, 2008
1980s
8 8
56.8
 
90 12 15.9 1 1 2 2 2
2 40605 Mar 3, 2011
Open
6 6
55.8
 
82 26 18.3 0 2 1 2 1
3 41338 Mar 5, 2013
Open
10 10
54.0
 
86 5 15.3 1 2 3 2 2
4 40604 Mar 2, 2011
Open
12 12
53.2
 
93 9 17.3 2 1 4 3 2
5 40240 Mar 3, 2010
Billboard charts
10 10
53.0
 
90 6 16.4 1 3 2 2 2
6 40968 Feb 29, 2012
Open
12 12
52.9
 
85 11 14.5 2 2 2 4 2
7 39134 Feb 21, 2007
Open
12 12
52.3
 
88 13 15.2 2 4 0 3 3
8 39512 Mar 5, 2008
1980s
8 8
51.9
 
80 26 20.9 0 1 5 1 1
9 39875 Mar 3, 2009
Billboard Hot 100
12 12
51.8
 
84 12 19.6 2 2 2 5 1
10 40246 Mar 9, 2010
Billboard charts
8 8
51.8
 
90 14 13.3 1 2 2 2 1
11 39504 Feb 26, 2008
1970s
10 10
51.4
 
93 19 17.9 1 3 2 2 2
12 38411 Feb 28, 2005
Open
10 10
51.1
 
90 16 21.2 1 2 4 2 1
13 40603 Mar 1, 2011
Open
12 12
50.9
 
90 5 16.7 1 4 2 2 3
14 38027 Feb 10, 2004
Open
8 8
50.9
 
84 25 21.5 0 4 1 2 1
15 39141 Feb 28, 2007
Open
10 10
50.6
 
92 13 14.8 2 2 2 3 1
16 41332 Feb 27, 2013
Open
10 10
50.5
 
81 26 22.7 0 3 3 3 1
17 43213 Apr 23, 2018
Open
14 14
50.5
 
86 8 20.5 1 4 4 4 1
18 38418 Mar 7, 2005
Open
8 8
50.4
 
85 16 17.6 1 2 3 1 1
19 38783 Mar 7, 2006
Open
8 8
50.4
 
87 12 18.5 1 1 4 1 1
20 39148 Mar 7, 2007
Open
8 8
50.3
 
88 17 14.8 1 1 3 2 1
21 38784 Mar 8, 2006
Open
8 8
49.8
 
80 24 19.9 0 3 2 2 1
22 43556 Apr 1, 2019
Open
20 20
49.6
 
92 16 19.6 2 5 7 4 2
23 40247 Mar 10, 2010
Billboard charts
8 8
49.5
 
80 21 23.3 0 2 3 2 1
24 38777 Mar 1, 2006
Open
10 10
49.4
 
92 19 15.6 1 3 3 1 2
25 39498 Feb 20, 2008
1960s
12 12
49.3
 
84 6 19.5 2 1 4 4 1
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