Commentaries available on this page:published at 17:20 British Summer Time 1 May 2017
Durham v Leicestershire, 11:00 BST (BBC Radio Newcastle and BBC Radio Leicester)
Glamorgan v Somerset, 11:00 BST (BBC Radio Wales and BBC Radio Bristol)
Kent v Sussex, 11:00 BST (BBC Radio Kent and BBC Radio Sussex)
Lancashire v Northants, 11:00 BST (BBC Radio Lancashire and BBC Radio Northampton)
Surrey v Middlesex, 11:00 BST (BBC Radio London)
Warwickshire v Nottinghamshire, 11:00 BST (BBC Coventry & Warwickshire and BBC Radio Nottingham)
Worcestershire v Yorkshire, 11:00 BST (BBC Hereford & Worcester and BBC Radio Leeds)