FA Cup 1991/92, Preliminary Round |
 | | | Irthlingborough Diamonds | – | Wednesfield | | 1:2 * |
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FA Cup 1991/92, Preliminary Round |
| | | Wednesfield | – | Irthlingborough Diamonds | | 3:3 aet * |
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FA Cup 1991/92, Preliminary Round |
| | | Irthlingborough Diamonds | – | Wednesfield | | 2:2 |
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FA Cup 1990/91, Preliminary Round |
| | | Irthlingborough Diamonds | – | Buckingham Town | | 3:4 |
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FA Cup 1989/90, Preliminary Round |
| | | MK Wolverton Town | – | Irthlingborough Diamonds | | 2:1 |
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FA Cup 1988/89, First Qualifying Round |
| | | Moor Green | – | Irthlingborough Diamonds | | 4:3 * |
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FA Cup 1988/89, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Moor Green | | 1:1 |
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FA Cup 1988/89, Preliminary Round |
| | | Northampton Spencer | – | Irthlingborough Diamonds | | 0:1 |
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FA Cup 1987/88, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Barnet | | 0:4 |
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FA Cup 1987/88, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Banbury United | | 3:1 |
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FA Cup 1986/87, First Qualifying Round |
| | | Corby Town | – | Irthlingborough Diamonds | | 3:0 |
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FA Cup 1985/86, Third Qualifying Round |
| | | Irthlingborough Diamonds | – | Halesowen Town | | 1:2 * |
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FA Cup 1985/86, Third Qualifying Round |
| | | Halesowen Town | – | Irthlingborough Diamonds | | 2:2 |
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FA Cup 1985/86, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Wellingborough Town | | 4:2 * |
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FA Cup 1985/86, Second Qualifying Round |
| | | Wellingborough Town | – | Irthlingborough Diamonds | | 1:1 |
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FA Cup 1985/86, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Shepshed Charterhouse | | 3:2 |
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FA Cup 1984/85, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Nuneaton Borough | | 0:5 |
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FA Cup 1984/85, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Leicester United | | 3:0 |
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FA Cup 1984/85, Preliminary Round |
| | | Stamford | – | Irthlingborough Diamonds | | 0:2 |
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FA Cup 1983/84, First Qualifying Round |
| | | Dudley Town | – | Irthlingborough Diamonds | | 3:1 |
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FA Cup 1982/83, Third Qualifying Round |
| | | Irthlingborough Diamonds | – | King's Lynn | | 1:2 |
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FA Cup 1982/83, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Skegness Town | | 1:0 * |
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FA Cup 1982/83, Second Qualifying Round |
| | | Skegness Town | – | Irthlingborough Diamonds | | 0:0 |
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FA Cup 1982/83, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Felixstowe Town | | 3:1 * |
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FA Cup 1982/83, First Qualifying Round |
| | | Felixstowe Town | – | Irthlingborough Diamonds | | 1:1 |
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FA Cup 1982/83, Preliminary Round |
| | | Spalding United | – | Irthlingborough Diamonds | | 0:1 |
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FA Cup 1981/82, Second Qualifying Round |
| | | Tring Town | – | Irthlingborough Diamonds | | 1:0 * |
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FA Cup 1981/82, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Tring Town | | 1:1 |
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FA Cup 1981/82, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Chesham United | | 1:0 |
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FA Cup 1981/82, Preliminary Round |
| | | Irthlingborough Diamonds | – | Harefield United | | 2:1 |
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FA Cup 1980/81, Preliminary Round |
| | | Histon | – | Irthlingborough Diamonds | | 3:0 |
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FA Cup 1979/80, First Qualifying Round |
| | | Corby Town | – | Irthlingborough Diamonds | | 1:0 |
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FA Cup 1978/79, Fourth Qualifying Round |
| | | Irthlingborough Diamonds | – | Dagenham | | 1:2 * |
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FA Cup 1978/79, Fourth Qualifying Round |
| | | Dagenham | – | Irthlingborough Diamonds | | 0:0 |
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FA Cup 1978/79, Third Qualifying Round |
| | | Hinckley Athletic | – | Irthlingborough Diamonds | | 1:2 |
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FA Cup 1978/79, Second Qualifying Round |
| | | Atherstone Town | – | Irthlingborough Diamonds | | 1:3 |
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FA Cup 1978/79, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Friar Lane Old Boys | | 3:0 |
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FA Cup 1977/78, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Corby Town | | 1:2 |
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FA Cup 1977/78, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Stamford | | 3:1 |
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FA Cup 1976/77, First Qualifying Round |
| | | Soham Town Rangers | – | Irthlingborough Diamonds | | 4:3 * |
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FA Cup 1976/77, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Soham Town Rangers | | 2:2 |
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FA Cup 1975/76, First Qualifying Round |
| | | Irthlingborough Diamonds | – | AP Leamington | | 1:2 |
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FA Cup 1974/75, Second Qualifying Round |
| | | Potton United | – | Irthlingborough Diamonds | | 5:3 |
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FA Cup 1974/75, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Rothwell Town | | 3:1 |
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FA Cup 1973/74, First Qualifying Round |
| | | St Neots Town | – | Irthlingborough Diamonds | | 3:1 |
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FA Cup 1972/73, Third Qualifying Round |
| | | Irthlingborough Diamonds | – | Enderby Town | | 0:4 |
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FA Cup 1972/73, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Long Eaton United | | 2:1 |
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FA Cup 1972/73, First Qualifying Round |
| | | Hinckley Athletic | – | Irthlingborough Diamonds | | 1:2 * |
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FA Cup 1972/73, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Hinckley Athletic | | 1:1 |
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FA Cup 1971/72, Second Qualifying Round |
| | | Witney Town | – | Irthlingborough Diamonds | | 3:0 |
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FA Cup 1971/72, First Qualifying Round |
| | | Corby Town | – | Irthlingborough Diamonds | | 0:1 |
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FA Cup 1971/72, Preliminary Round |
| | | Desborough Town | – | Irthlingborough Diamonds | | 1:2 |
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FA Cup 1970/71, Third Qualifying Round |
| | | Cambridge City | – | Irthlingborough Diamonds | | 3:0 * |
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FA Cup 1970/71, Third Qualifying Round |
| | | Irthlingborough Diamonds | – | Cambridge City | | 2:2 |
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FA Cup 1970/71, Second Qualifying Round |
| | | Irthlingborough Diamonds | – | Rothwell Town | | 5:0 * |
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FA Cup 1970/71, Second Qualifying Round |
| | | Rothwell Town | – | Irthlingborough Diamonds | | 1:1 |
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FA Cup 1970/71, First Qualifying Round |
| | | Irthlingborough Diamonds | – | Histon | | 2:1 |
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FA Cup 1969/70, Second Qualifying Round |
| | | Newmarket Town | – | Irthlingborough Diamonds | | 3:1 |
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FA Cup 1969/70, First Qualifying Round |
| | | Letchworth Town | – | Irthlingborough Diamonds | | 2:3 |
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