| FA Cup | M. | W | D | L | goals | |||
| at home | 2 | 2 | 0 | 0 | 4 | : | 0 | |
| Away | 1 | 0 | 1 | 0 | 0 | : | 0 | |
| ∑ | 3 | 2 | 1 | 0 | 4 | : | 0 | |
| League Cup | M. | W | D | L | goals | |||
| Away | 1 | 1 | 0 | 0 | 2 | : | 0 | |
| ∑ | 1 | 1 | 0 | 0 | 2 | : | 0 | |
| overall | M. | W | D | L | goals | |||
| at home | 2 | 2 | 0 | 0 | 4 | : | 0 | |
| Away | 2 | 1 | 1 | 0 | 2 | : | 0 | |
| Neutral Place | 0 | 0 | 0 | 0 | 0 | : | 0 | |
| ∑ | 4 | 3 | 1 | 0 | 6 | : | 0 | |
| FA Cup | |||||
| 1923/1924 | 2. Round | Watford FC | - | Exeter City | 1:0 |
| 1923/1924 | 2. Round | Exeter City | - | Watford FC | 0:0 |
| 1920/1921 | 1. Round | Watford FC | - | Exeter City | 3:0 |
| League Cup | |||||
| 1978/1979 | Round of 16 | Exeter City | - | Watford FC | 0:2 |
|
For games that were decided on penalties the score after 120 minutes will be included in the ranking |
England 
![Watford FC [U18]](https://s.hs-data.com/bilder/wappen/mini/29037.gif?fallback=png "Watford FC [U18]"){kind=small}
![Watford FC [Youth]](https://s.hs-data.com/bilder/wappen/mini/28044.gif?fallback=png "Watford FC [Youth]"){kind=small}
![Watford FC [Youth B]](https://s.hs-data.com/bilder/wappen/mini/27349.gif?fallback=png "Watford FC [Youth B]"){kind=small}
