| Opposition | Home (Watford Wins) | Score | Away (Watford Wins) | Score |
|---|---|---|---|---|
| Norwich City | 06/12/2025 | 3-2 | 29/12/2025 | 1-0 |
| Port Vale | 24/04/1974 | 2-1 | 16/04/1974 | 2-1 |
| Plymouth Argyle | 15/04/1969 | 1-0 | 08/04/1969 | 2-1 |
| Grimsby Town | 25/04/1967 | 3-1 | 12/04/1967 | 2-0 |
| Scunthorpe United | 16/04/1965 | 5-0 | 20/04/1965 | 2-0 |
| Luton Town | 28/12/1964 | 2-0 | 26/12/1964 | 4-2 |
| Walsall | 26/12/1963 | 5-3 | 28/12/1963 | 3-1 |
| Notts County | 28/08/1962 | 4-0 | 23/08/1962 | 3-1 |
| Coventry City | 11/04/1961 | 7-2 | 14/04/1961 | 1-0 |
| Swindon Town | 20/09/1960 | 1-0 | 28/09/1960 | 2-1 |
| Chester | 15/04/1960 | 4-2 | 18/04/1960 | 1-0 |
| Crewe Alexandra | 15/09/1959 | 2-0 | 09/09/1959 | 3-1 |
| Reading | 19/04/1957 | 1-0 | 22/04/1957 | 2-1 |
| Leyton Orient | 25/12/1950 | 2-0 | 26/12/1950 | 2-1 |
| Bristol City | 20/04/1950 | 2-0 | 15/04/1950 | 1-0 |
| Walsall | 15/04/1949 | 2-0 | 18/04/1949 | 1-0 |
| Bristol Rovers | 18/09/1946 | 1-0 | 09/09/1946 | 4-3 |
| Notts County | 15/04/1938 | 2-0 | 18/04/1938 | 2-1 |
| Exeter City | 11/09/1935 | 1-0 | 04/09/1935 | 3-1 |
| Newport County | 26/12/1934 | 7-0 | 25/12/1934 | 1-0 |
| Swindon Town | 21/04/1930 | 4-1 | 18/04/1930 | 3-1 |
| Newport County | 26/12/1928 | 3-0 | 25/12/1928 | 2-0 |
| Merthyr Town | 10/04/1925 | 3-1 | 14/04/1925 | 1-0 |
| Luton Town | 18/11/1922 | 2-1 | 25/11/1922 | 1-0 |
| Gillingham | 28/10/1922 | 5-2 | 21/10/1922 | 4-1 |
| Exeter City | 30/09/1922 | 4-0 | 23/09/1922 | 2-1 |
| Merthyr Town | 18/02/1922 | 4-1 | 25/02/1922 | 2-1 |
| Brighton and Hove Albion | 30/04/1921 | 1-0 | 23/04/1921 | 3-0 |
| Newport County | 11/12/1920 | 5-1 | 04/12/1920 | 2-0 |
| Northampton Town | 18/09/1920 | 7-1 | 11/09/1920 | 1-0 |