May 1989§	First Round		Outcasts v Market Rasen	Hirst Priory Park, Crowle	misc
	07 May 1989§	Preliminary Round		Haxey v Holton-le-Clay	Haxey Lane, Haxey	misc
	07 May 1989§	Preliminary Round		Scunthorpe Town v Nettleham	Heslam Park, Scunthorpe	misc
	28 May 1989§	First Round		Alford v Normanby Park	Train Fen Holt, Alford	misc
	28 May 1989§	First Round		Appleby Frodingham v Belton	Brumby Hall, Scunthorpe	misc
	28 May 1989§	First Round		Caistor Town v Messingham	Brigg Road Ground, Caistor	misc
	28 May 1989§	First Round		Cleethorpes Third XI v Louth	Sports Ground, Cleethorpes	misc
	28 May 1989§	First Round		Grimsby British Rail Sports Association v Alkborough	Carr Lane, Grimsby	misc
	28 May 1989§	First Round		Grimsby Town v Nuform Sports	Augusta Street, Grimsby	misc
	28 May 1989§	First Round		Kirton Lindsey v Rustons	Redbourne Mere, Kirton in Lindsey	misc
	28 May 1989§	First Round		Lincoln Claytons v Broughton	Clayton's Sports Club Ground, Lincoln	misc
	28 May 1989§	First Round		Nettleton Mines v Hartsholme	Lysaghts Sports Ground, Holton le Moor	misc
	28 May 1989§	First Round		Normanby Park Works v Southcliffe St Andrews	Cemetery Road Sports Ground, Brumby	misc
	28 May 1989§	First Round		Ross Sports v Brigg Town	Ross Sports Club Ground, Weelsby Road, Grimsby	misc
	28 May 1989§	First Round		Scunthorpe Town v Saxilby	Heslam Park, Scunthorpe	misc
	28 May 1989§	First Round		Skegness v Hykeham	Richmond Drive, Skegness	misc
	28 May 1989§	First Round		South Kelsey v Barton Town	Waddingham Road, South Kelsey	misc
	28 May 1989§	First Round		St John's Hospital v Haxey	St John's Hospital, Bracebridge Heath	misc
	Jun 1989§	Second Round		not known v Lincoln Claytons	not known	misc
	18 Jun 1989§	Second Round		Cleethorpes Third XI v not known	Sports Ground, Cleethorpes	misc
	18 Jun 1989§	Second Round		Market Rasen v not known	Rase Park, Market Rasen	misc
	18 Jun 1989§	Second Round		Normanby Park Works v Messingham	Cemetery Road Sports Ground, Brumby	misc
	18 Jun 1989§	Second Round		not known v Ross Sports	not known	misc
	18 Jun 1989§	Second Round		not known v not known	not known	misc
	18 Jun 1989§	Second Round		not known v not known	not known	misc
	18 Jun 1989§	Second Round		not known v not known	not known	misc
	Jul 1989§	Semi-Final		Cleethorpes Third XI v Messingham	Sports Ground, Cleethorpes	misc
	Jul 1989§	Quarter-Final		Ross Sports v Cleethorpes Third XI	Ross Sports Club Ground, Weelsby Road, Grimsby	misc
	09 Jul 1989§	Quarter-Final		Lincoln Claytons v not known	Clayton's Sports Club Ground, Lincoln	misc
	09 Jul 1989§	Quarter-Final		Market Rasen v Messingham	Rase Park, Market Rasen	misc
	09 Jul 1989§	Quarter-Final		not known v not known	not known	misc
	30 Jul 1989§	Semi-Final		not known v Lincoln Claytons	not known	misc

§ The fixture list specified that the match must be completed by this date.