In contrast to its 40-over predecessor, the number of overs per innings was set at 50 to bring the competition in line with One-Day Internationals.

As of 2024, the top three teams in each group progress to the knock-out stage of the competition.

The One-Day Cup is the latest in a line of limited over competitions in county cricket.

The 17 counties of the time played each other in a league format on Sunday afternoons throughout the season.

The counties incorporated nicknames into their official names for the National League.

It began in the 2010 English cricket season, incorporating the league element of the Pro40 and the knockout stages of the Friends Provident Trophy, itself a successor to the Gillette Cup.

[7] These three extra teams would not go on to feature in the Royal London One-Day Cup.