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Final group matches all start at 13:00 BST
Central: Gloucestershire v Somerset, Birmingham v Northamptonshire & Worcestershire v Glamorgan
North: Derbyshire v Yorkshire, Lancashire v Leicestershire & Notts v Durham
South: Essex v Sussex, Hampshire v Middlesex & Surrey v Kent
Top two teams in North, Central & South groups progress to quarter-finals
Best two third-placed teams will join them in knockout stages
Click on fixture to see full scorecard
All games start at 13:00 BST
Birmingham Bears v Northamptonshire Steelbacks
Derbyshire Falcons v Yorkshire Vikings
Lancashire Lightning v Leicestershire Foxes
Notts Outlaws v Derbyshire Falcons