Women's County Championship successful county in the history of the Championship with seven titles as of June 2018. Sussex and Yorkshire have both won six titles. The inaugural Women's County Championship took place in 1997, with 16 teams competing in three divisions. This first tournament was organised and run by the Women's Cricket Association, which voted to merge with the England and Wales Cricket Board (ECB) on 29 March 1998. As such, the ECB has administered the competition since 1998. The 36 teams that make up the Championship are split into three divisions, with the bottom division split into five groups. The top
Middlesex County Cricket Club quarters and from 2007, Middlesex have worn exclusive pink shirts during their Twenty20 matches in support of the Breakthrough Breast Cancer charity. The club has an indoor school based in Finchley, the Middlesex Academy and a project at Radlett Cricket Club. Middlesex have won thirteen County Championship titles (including 2 shared titles), the most recent in 2016. In limited overs cricket, they have won two Benson & Hedges Cups, four one-day cricket titles, one National League and the Twenty20 Cup, through which they became the first county club to qualify for both the Stanford Super Series and the Twenty20 Champions