ROUND 18 MATCHES - 25-28 JUL 1987

 Gloucestershire v Derbyshire at Bristol, 25-28 July 1987
 Hampshire v Essex at Portsmouth, 25-28 July 1987
 Lancashire v Nottinghamshire at Manchester, 25-28 July 1987
 Leicestershire v Yorkshire at Leicester, 25-28 July 1987
 Middlesex v Kent at Lord's, London, 25-28 July 1987
 Northamptonshire v Sussex at Northampton, 25-28 July 1987
 Worcestershire v Somerset at Worcester, 25-28 July 1987