It was an English limited overs county cricket tournament which was held between 28 June and 2 September 1989.
[1] The tournament was won by Warwickshire who defeated Middlesex by 4 wickets in the final at Lord's.
The seventeen first-class counties, were joined by thirteen Minor Counties: Berkshire, Cambridgeshire, Cheshire, Cumberland, Dorset, Durham, Hertfordshire, Northumberland, Oxfordshire, Shropshire, Staffordshire, Suffolk and Wiltshire.
The Ireland and Scotland teams also participated.
The winners in the second round then progressed to the quarter-final stage.