ROUND 13 MATCHES - 1-3 JUL 1987

 Glamorgan v Northamptonshire at Swansea, 1-3 Jul 1987
 Gloucestershire v Hampshire at Gloucester 1-3 Jul 1987
 Kent v Yorkshire at Canterbury, 1-3 Jul 1987
 Lancashire v Essex at Manchester, 1-3 Jul 1987
 Leicestershire v Derbyshire at Leicester, 1-3 Jul 1987
 Surrey v Middlesex at The Oval, 1-3 Jul 1987
 Warwickshire v Somerset at Birmingham, 1-3 Jul 1987
 Worcestershire v Nottinghamshire at Kidderminster, 1-3 Jul 1987