| At Reading (26) | At Cardiff City (30) | |||||
|---|---|---|---|---|---|---|
| Results | Total | % | Results | Total | % | |
| Reading | 11 | 42.31 | Cardiff City | 13 | 43.33 | |
| Cardiff City | 5 | 19.23 | Reading | 9 | 30.00 | |
| Draws | 10 | 38.46 | Draws | 8 | 26.67 | |
| Goals | Total | Av.pg | Goals | Total | Av.pg | |
| Reading | 44 | 1.69 | Cardiff City | 60 | 2.00 | |
| Cardiff City | 22 | 0.85 | Reading | 39 | 1.30 | |
| On Neutral Ground (1) | Overall (57 matches) | |||||
| Results | Total | % | Results | Total | % | |
| Reading | 0 | 0.00 | Reading | 20 | 35.09 | |
| Cardiff City | 1 | 100.00 | Cardiff City | 19 | 33.33 | |
| Draws | 0 | 0.00 | Draws | 18 | 31.58 | |
| Goals | Total | Av.pg | Goals | Total | Av.pg | |
| Reading | 0 | 0.00 | Reading | 83 | 1.46 | |
| Cardiff City | 3 | 3.00 | Cardiff City | 85 | 1.49 | |
| Records | |||||
|---|---|---|---|---|---|
| Highest Aggregate | 7 | Cardiff City | 2 - 5 | Reading | 2005/2006 |
| Highest Reading score: | 5 | Reading | 5 - 1 | Cardiff City | 2005/2006 |
| Highest Cardiff City score: | 5 | Cardiff City | 5 - 1 | Reading | 1965/1966 |
| Season | Date | Home | Score | Away | Competition |
|---|---|---|---|---|---|
| 2010/2011 | Tue 17 May | Cardiff City | 0 - 3 | Reading | Football League Play-Offs (Lvl 2) |
| Reading won 3-0 on aggregate | |||||
| Fri 13 May | Reading | 0 - 0 | Cardiff City | Football League Play-Offs (Lvl 2) | |
| Tue 01 Feb | Cardiff City | 2 - 2 | Reading | Championship | |
| Wed 10 Nov | Reading | 1 - 1 | Cardiff City | Championship | |
| 2009/2010 | Sat 10 Apr | Cardiff City | 0 - 0 | Reading | Championship |
| Wed 16 Sep | Reading | 0 - 1 | Cardiff City | Championship | |
| 2008/2009 | Sat 03 Jan | Cardiff City | 2 - 0 | Reading | F.A. Cup |
| Fri 26 Dec | Reading | 1 - 1 | Cardiff City | Championship | |
| Tue 25 Nov | Cardiff City | 2 - 2 | Reading | Championship | |
| 2005/2006 | Sat 08 Apr | Cardiff City | 2 - 5 | Reading | Championship |
| Mon 02 Jan | Reading | 5 - 1 | Cardiff City | Championship | |
| 2004/2005 | Sat 23 Apr | Cardiff City | 2 - 0 | Reading | Championship |
| Sat 13 Nov | Reading | 2 - 1 | Cardiff City | Championship | |
| 2003/2004 | Tue 16 Mar | Cardiff City | 2 - 3 | Reading | League Division One |
| Tue 16 Sep | Reading | 2 - 1 | Cardiff City | League Division One | |
| 2001/2002 | Wed 26 Dec | Cardiff City | 2 - 2 | Reading | League Division Two |
| Sat 08 Sep | Reading | 1 - 2 | Cardiff City | League Division Two | |
| 1999/2000 | Sat 25 Mar | Reading | 0 - 1 | Cardiff City | League Division Two |
| Sun 26 Dec | Cardiff City | 1 - 0 | Reading | League Division Two | |
| 1997/1998 | Tue 03 Feb | Reading | 1 - 1 | Cardiff City | F.A. Cup |
| after extra time, 90 minutes 1-1, Reading won 4-3 on penalties | |||||
| Sat 24 Jan | Cardiff City | 1 - 1 | Reading | F.A. Cup | |
| 1993/1994 | Sat 09 Apr | Reading | 1 - 1 | Cardiff City | League Division Two |
| Sat 01 Jan | Cardiff City | 3 - 0 | Reading | League Division Two | |
| 1989/1990 | Tue 01 May | Cardiff City | 3 - 2 | Reading | Third Division |
| Sat 14 Apr | Reading | 0 - 1 | Cardiff City | Third Division | |
| 1988/1989 | Sat 18 Feb | Reading | 3 - 1 | Cardiff City | Third Division |
| Sat 08 Oct | Cardiff City | 1 - 2 | Reading | Third Division | |
| 1985/1986 | Sat 11 Jan | Reading | 1 - 1 | Cardiff City | Third Division |
| Sat 31 Aug | Cardiff City | 1 - 3 | Reading | Third Division | |
| 1982/1983 | Tue 01 Mar | Cardiff City | 0 - 0 | Reading | Third Division |
| Wed 03 Nov | Reading | 1 - 2 | Cardiff City | Third Division | |
| 1965/1966 | Wed 03 Nov | Cardiff City | 5 - 1 | Reading | League Cup |
| 1962/1963 | Wed 26 Sep | Cardiff City | 5 - 1 | Reading | League Cup |
| 1946/1947 | Sat 05 Apr | Reading | 0 - 0 | Cardiff City | Third Division (South) |
| Wed 22 Jan | Cardiff City | 3 - 0 | Reading | Third Division (South) | |
| 1938/1939 | Wed 01 Feb | Reading | 0 - 0 | Cardiff City | Third Division (South) |
| Sat 17 Sep | Cardiff City | 0 - 1 | Reading | Third Division (South) | |
| 1937/1938 | Wed 04 May | Reading | 0 - 0 | Cardiff City | Third Division (South) |
| Sat 23 Apr | Cardiff City | 4 - 1 | Reading | Third Division (South) | |
| 1936/1937 | Sat 06 Feb | Cardiff City | 1 - 1 | Reading | Third Division (South) |
| Sat 03 Oct | Reading | 3 - 0 | Cardiff City | Third Division (South) | |
| 1935/1936 | Sat 04 Jan | Reading | 4 - 1 | Cardiff City | Third Division (South) |
| Sat 07 Sep | Cardiff City | 2 - 3 | Reading | Third Division (South) | |
| 1934/1935 | Sat 16 Mar | Cardiff City | 1 - 1 | Reading | Third Division (South) |
| Sat 24 Nov | Cardiff City | 1 - 2 | Reading | F.A. Cup | |
| Sat 03 Nov | Reading | 1 - 1 | Cardiff City | Third Division (South) | |
| 1933/1934 | Wed 06 Sep | Reading | 3 - 1 | Cardiff City | Third Division (South) |
| Mon 28 Aug | Cardiff City | 2 - 0 | Reading | Third Division (South) | |
| 1932/1933 | Sat 31 Dec | Cardiff City | 0 - 1 | Reading | Third Division (South) |
| Sat 27 Aug | Reading | 4 - 2 | Cardiff City | Third Division (South) | |
| 1931/1932 | Sat 16 Jan | Reading | 5 - 1 | Cardiff City | Third Division (South) |
| Sat 05 Sep | Cardiff City | 5 - 1 | Reading | Third Division (South) | |
| 1930/1931 | Sat 14 Mar | Reading | 3 - 0 | Cardiff City | Second Division |
| Sat 08 Nov | Cardiff City | 5 - 0 | Reading | Second Division | |
| 1929/1930 | Mon 21 Apr | Reading | 2 - 0 | Cardiff City | Second Division |
| Fri 18 Apr | Cardiff City | 2 - 1 | Reading | Second Division | |
| 1926/1927 | Sat 26 Mar | Cardiff City | 3 - 0 | Reading | F.A. Cup |
| played at Wolverhampton | |||||