12 May 1991 | First Round | Broughton Second XI v East Halton | Recreation Ground, Broughton | Results |
30 Apr 1991 | First Round | Alkborough Second XI v Dee Jays | West Halton Lane, Alkborough | Results |
30 Apr 1991 | First Round | Findus v North Thoresby | Hewitts Circus, Humberstone | Results |
30 Apr 1991 | First Round | Normanby Park Works Third XI v Grimsby British Rail Sports Association College | Cemetery Road Sports Ground, Brumby | Results |
30 Apr 1991 | First Round | John Margrave v Keelby Second XI | Foxhills Sports Ground, Scunthorpe | Results |
30 Apr 1991 | First Round | Hibaldstow v South Kelsey Second XI | Station Road, Hibaldstow | Results |
30 Apr 1991 | First Round | British Petroleum Aces v Scotter | British Petroleum Chemicals, Hull | Results |
30 Apr 1991 | First Round | Brigg Town Second XI v Findus Second XI | Brigg Recreation Ground, Brigg | Results |
31 May 1991 | Second Round | Dee Jays v East Halton | Ashby Ville Sports Ground, Scunthorpe | Results |
31 May 1991 | Second Round | Bottesford Town v Kirton Lindsey Second XI | Birch Park, Bottesford | Results |
31 May 1991 | Second Round | Immingham Blossom Way Police v Holton-le-Clay | Blossom Way, Immingham | Results |
31 May 1991 | Second Round | Smith-Corona Marchant v Grimsby British Rail Sports Association Second XI | Clee Road, Grimsby | Results |
31 May 1991 | Second Round | Findus v Scunthorpe Town Third XI | Hewitts Circus, Humberstone | Results |
31 May 1991 | Second Round | Belton Second XI v Grimsby British Rail Sports Association College | Church Street, Belton | Results |
31 May 1991 | Second Round | John Margrave v Hibaldstow | Foxhills Sports Ground, Scunthorpe | Results |
31 May 1991 | Second Round | British Petroleum Aces v Findus Second XI | British Petroleum Chemicals, Hull | Results |
30 Jun 1991 | Quarter-Final | East Halton v Kirton Lindsey Second XI | Townside Farm, East Halton | Results |
30 Jun 1991 | Quarter-Final | Holton-le-Clay v Grimsby British Rail Sports Association Second XI | Tetney Lane, Holton-le-Clay | Results |
30 Jun 1991 | Quarter-Final | Scunthorpe Town Third XI v Belton Second XI | Co-operative Sports Ground, Scunthorpe | Results |
30 Jun 1991 | Quarter-Final | John Margrave v Findus Second XI | Foxhills Sports Ground, Scunthorpe | Results |
31 Jul 1991 | Semi-Final | East Halton v Holton-le-Clay | Townside Farm, East Halton | Results |
31 Jul 1991 | Semi-Final | Belton Second XI v Findus Second XI | Church Street, Belton | Results |
31 Jul 1991 | Final | Findus Second XI v Holton-le-Clay | Recreation Ground, Broughton | Results |