| At Blackburn R. (28) | | At Cardiff City (29) | | Results | Total | % | | Results | Total | % | | Blackburn R. | 18 | 64.29 | | Cardiff City | 15 | 51.72 | | Cardiff City | 4 | 14.29 | | Blackburn R. | 5 | 17.24 | | Draws | 6 | 21.43 | | Draws | 9 | 31.03 | | Goals | Total | Av.pg | | Goals | Total | Av.pg | | Blackburn R. | 51 | 1.82 | | Cardiff City | 51 | 1.76 | | Cardiff City | 27 | 0.96 | | Blackburn R. | 30 | 1.03 | | On Neutral Ground (1) | | Overall (58 matches) | | Results | Total | % | | Results | Total | % | | Blackburn R. | 0 | 0.00 | | Blackburn R. | 23 | 39.66 | | Cardiff City | 1 | 100.00 | | Cardiff City | 20 | 34.48 | | Draws | 0 | 0.00 | | Draws | 15 | 25.86 | | Goals | Total | Av.pg | | Goals | Total | Av.pg | | Blackburn R. | 1 | 1.00 | | Blackburn R. | 82 | 1.41 | | Cardiff City | 3 | 3.00 | | Cardiff City | 81 | 1.40 |
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| Records | | Highest Aggregate | 9 | Blackburn R. | 6 - 3 | Cardiff City | 1925/1926 | | Highest Blackburn R. score: | 6 | Blackburn R. | 6 - 3 | Cardiff City | 1925/1926 | | Highest Cardiff City score: | 5 | Cardiff City | 5 - 0 | Blackburn R. | 1922/1923 |
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| Season | Date | Home | Score | Away | Competition | | 2004/2005 | Sat 08 Jan | Cardiff City | 1 - 1 | Blackburn R. | F.A. Cup | | 1984/1985 | Sat 13 Apr | Cardiff City | 1 - 2 | Blackburn R. | Second Division | | Tue 18 Sep | Blackburn R. | 2 - 1 | Cardiff City | Second Division | | 1983/1984 | Mon 07 May | Blackburn R. | 1 - 1 | Cardiff City | Second Division | | Sat 10 Dec | Cardiff City | 2 - 1 | Blackburn R. | Second Division | | 1981/1982 | Sat 30 Jan | Blackburn R. | 1 - 0 | Cardiff City | Second Division | | Sat 19 Sep | Cardiff City | 1 - 3 | Blackburn R. | Second Division | | 1980/1981 | Sat 15 Nov | Blackburn R. | 2 - 3 | Cardiff City | Second Division | | Sat 16 Aug | Cardiff City | 1 - 2 | Blackburn R. | Second Division | | 1978/1979 | Wed 28 Feb | Blackburn R. | 1 - 4 | Cardiff City | Second Division | | Sat 23 Sep | Cardiff City | 2 - 0 | Blackburn R. | Second Division | | 1977/1978 | Sat 14 Jan | Cardiff City | 1 - 1 | Blackburn R. | Second Division | | Sat 27 Aug | Blackburn R. | 3 - 0 | Cardiff City | Second Division | | 1976/1977 | Sat 05 Feb | Blackburn R. | 2 - 1 | Cardiff City | Second Division | | Sat 28 Aug | Cardiff City | 2 - 1 | Blackburn R. | Second Division | | 1970/1971 | Sat 13 Mar | Blackburn R. | 1 - 1 | Cardiff City | Second Division | | Sat 14 Nov | Cardiff City | 4 - 1 | Blackburn R. | Second Division | | 1969/1970 | Wed 08 Oct | Blackburn R. | 1 - 0 | Cardiff City | Second Division | | Sat 16 Aug | Cardiff City | 0 - 0 | Blackburn R. | Second Division | | 1968/1969 | Sat 11 Jan | Blackburn R. | 1 - 0 | Cardiff City | Second Division | | Sat 02 Nov | Cardiff City | 2 - 1 | Blackburn R. | Second Division | | 1967/1968 | Sat 27 Apr | Blackburn R. | 1 - 1 | Cardiff City | Second Division | | Sat 02 Dec | Cardiff City | 3 - 2 | Blackburn R. | Second Division | | 1966/1967 | Sat 14 Jan | Cardiff City | 1 - 1 | Blackburn R. | Second Division | | Sat 10 Sep | Blackburn R. | 4 - 1 | Cardiff City | Second Division | | 1961/1962 | Sat 16 Dec | Cardiff City | 1 - 1 | Blackburn R. | First Division | | Sat 19 Aug | Blackburn R. | 0 - 0 | Cardiff City | First Division | | 1960/1961 | Sat 08 Apr | Cardiff City | 1 - 1 | Blackburn R. | First Division | | Sat 19 Nov | Blackburn R. | 2 - 2 | Cardiff City | First Division | | 1957/1958 | Sat 29 Mar | Cardiff City | 4 - 3 | Blackburn R. | Second Division | | Thu 20 Feb | Blackburn R. | 2 - 1 | Cardiff City | F.A. Cup | | Sat 15 Feb | Cardiff City | 0 - 0 | Blackburn R. | F.A. Cup | | Sat 16 Nov | Blackburn R. | 4 - 0 | Cardiff City | Second Division | | 1951/1952 | Mon 21 Apr | Cardiff City | 3 - 1 | Blackburn R. | Second Division | | Sat 10 Nov | Blackburn R. | 0 - 1 | Cardiff City | Second Division | | 1950/1951 | Sat 24 Feb | Cardiff City | 1 - 0 | Blackburn R. | Second Division | | Sat 07 Oct | Blackburn R. | 2 - 0 | Cardiff City | Second Division | | 1949/1950 | Sat 17 Dec | Cardiff City | 2 - 1 | Blackburn R. | Second Division | | Sat 20 Aug | Blackburn R. | 1 - 0 | Cardiff City | Second Division | | 1948/1949 | Mon 18 Apr | Cardiff City | 1 - 0 | Blackburn R. | Second Division | | Fri 15 Apr | Blackburn R. | 2 - 1 | Cardiff City | Second Division | | 1928/1929 | Sat 04 May | Cardiff City | 1 - 1 | Blackburn R. | First Division | | Sat 22 Dec | Blackburn R. | 2 - 0 | Cardiff City | First Division | | 1927/1928 | Mon 12 Sep | Cardiff City | 1 - 1 | Blackburn R. | First Division | | Mon 05 Sep | Blackburn R. | 0 - 0 | Cardiff City | First Division | | 1926/1927 | Sat 07 May | Blackburn R. | 1 - 0 | Cardiff City | First Division | | Sat 18 Dec | Cardiff City | 0 - 1 | Blackburn R. | First Division | | 1925/1926 | Sat 06 Feb | Cardiff City | 4 - 1 | Blackburn R. | First Division | | Sat 26 Sep | Blackburn R. | 6 - 3 | Cardiff City | First Division | | 1924/1925 | Wed 15 Apr | Cardiff City | 3 - 0 | Blackburn R. | First Division | | Sat 28 Mar | Cardiff City | 3 - 1 | Blackburn R. | F.A. Cup | | played at County Ground, Nottingham | | Sat 20 Dec | Blackburn R. | 3 - 1 | Cardiff City | First Division | | 1923/1924 | Thu 20 Mar | Blackburn R. | 2 - 1 | Cardiff City | First Division | | Sat 09 Feb | Cardiff City | 2 - 0 | Blackburn R. | First Division | | 1922/1923 | Sat 27 Jan | Cardiff City | 5 - 0 | Blackburn R. | First Division | | Sat 20 Jan | Blackburn R. | 3 - 1 | Cardiff City | First Division | | 1921/1922 | Mon 17 Apr | Cardiff City | 1 - 3 | Blackburn R. | First Division | | Mon 02 Jan | Blackburn R. | 1 - 3 | Cardiff City | First Division |
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