The Royal London One-Day Cup is a limited-overs cricket competition of fifty overs. As the name suggests, the tournament is played between the England and Wales first-class counties. In ECB 40, the number of overs was 40 which was increased to 50 for the new tournament. The format of the tournament resembles to the international ODI format. It was primarily organized by the England Cricket Board (ECB) for the young players in the county. Currently, the tournament consists of 18 teams from the counties of England and Wales. The competition consists of two groups that are geographically named as North group and a South group. Each group comprises of nine teams from which the top three teams progress to the knockout stage of the competition. The North group includes Derbyshire, Durham, Lancashire, Leicestershire, Northamptonshire, Nottinghamshire, Warwickshire, Worcestershire, and Yorkshire whereas the South group comprises Essex, Glamorgan, Gloucestershire, Hampshire, Kent, Middlesex, Somerset, Surrey, and Sussex.