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Sussex Sharks beat Middlesex by 3 wickets
Somerset beat Glamorgan by 8 wickets & Northamptonshire Steelbacks beat Birmingham Bears by 38 runs
Hampshire beat Essex Eagles by 5 wickets & Kent Spitfires beat Surrey by 5 wickets
The 18 counties split into three groups, with each side playing 10 games
Click on fixture to see full scorecard
Essex Eagles v Hampshire (14:00 BST)
Kent Spitfires v Surrey (14:00 BST)
Middlesex v Sussex Sharks (18:15 BST)
Northamptonshire Steelbacks v Birmingham Bears (18:30 BST)