Use audio icons at top of the page to listen to BBC radio commentaries

All matches kick off at 11:00 BST

Durham v Middlesex - BBC Radio Newcastle

Gloucestershire v Somerset - BBC Radio Bristol

Kent v Hampshire - BBC Radio Kent

Lancashire v Derbyshire - BBC Radio Lancashire

Northamptonshire v Essex - BBC Radio Northamptonshire

Surrey v Warwick - BBC Radio London

Sussex v Leicestershire - BBC Radio Sussex

Yorkshire v Warwickshire - BBC Radio Leeds