Delcastle Tennis Center is a privately owned tennis facility in Wilmington, Delaware, open to both members and the general public. Its courts include six outdoor hard courts and six climate-controlled indoor courts, supported by men’s and women’s locker rooms, a fitness and workout room, and a mezzanine lounge with seating overlooking the indoor courts.

The center offers tennis programs for adults and young players. Adult options include leagues, Point Plays, Round Robins, tournaments, social events, clinics, and group lessons focused on stroke development and singles or doubles strategies. Junior programs serve players ages 4 to 18 across a range of skill levels, with offerings for juniors, high school students, and camps. Delcastle also hosts USTA Middle States and Delaware District men’s and women’s leagues, Cup Teams, and college matches for Wilmington University of Delaware.

Members and non-members can rent indoor or outdoor courts, and indoor tennis contracts are available upon request. The pro shop sells racquets and provides racquet stringing and grip replacement.