D&C LTA enters teams in the annual LTA County Cup competitions. The County Cup events give players the opportunity to represent their County in a team competition both at national level.

The Summer County Cup is held at a variety of locations throughout the United Kingdom, normally in mid-July. The Winter County Cup is held in November, again at a variety of indoor locations across the UK. The County has a Selection Committee made up of County Captains, County Coach and Performance Lead, which is responsible for appointing Captains to each team and selecting the squad for each team. All players are required to  consult and understand the LTA Code of Conduct which provides a complete statement of the standards of conduct that are expected and required of all participants, and the LTA Anti-Doping and Anti-Corruption Regulations to fully understand the consequences of any breach.