[1] The competition began in 2009 and now features 35 teams, drawn mainly from the historic counties of England, plus Wales and Scotland.
Until 2019, the competition operated alongside the Women's County Championship, but after a restructuring in women's domestic cricket in 2020, between 2021 and 2023 it was the only official tournament featuring county sides, with regional teams competing in new 50-over, Twenty20 and The Hundred competitions.
[3] The Women's Twenty20 Cup began in 2009, with teams competing in eight tiered divisions of four.
[3] Berkshire reached the final of the competition three times in a row between 2010 and 2012, but only managed to win the tournament in 2010.
However, the Twenty20 Cup was allowed to continue, with central funding from the ECB, until at least 2021, with counties effectively acting as "feeder" teams to the new regional sides.
[8] As the tournament now operates on a regional structure, with no overall winner, Warwickshire, who won in 2019, were the final national champions.
In 2021, due to ongoing concerns with the pandemic, as well as limited travel costs, the tournament was organised on a regional basis, with six groups of six, and no overall national winner.