No team has qualified for the quarterfinals yet, though Glamorgan have been eliminated. Lancashire Lightning and Sussex Sharks top the two groups.
Eight fixtures are scheduled for August 16, at Old Trafford, Northampton, Trent Bridge, Taunton, Headingley, Chelmsford, Rose Bowl, and Canterbury.
August 15 will feature three matches at the 2019 Vitality Blast – at Riverside Ground, The Oval, and Derby.
August 14 will feature three Vitality Blast matches- Lancashire vs Northamptonshire, Essex vs Middlesex, and Kent vs Glamorgan.
August 13 will witness two matches, between Gloucestershire and Hampshire at Bristol, and between Derbyshire and Worcestershire at Derby.
Six matches will be played on August 11, at Chester-le-Street, Edgbaston, New Road, Cardiff, Radlett, and Headingley.
Somerset will host Kent in Saturday's only match, at Taunton.
There will be plenty of changes in both the North and South groups tables on a day filled with T20 action.
The London Derby – between Middlesex and Surrey at Lord's – will be the only match of the 2019 Vitality Blast to be played on August 8.
August 7 will see four clashes of Vitality Blast 2019