Hartsbourne held off the challenge of 23 clubs from around Hertfordshire to win the Handicap Cup for the first time in 25 years.
A team consisting of Heidi Rosenfeld, Hayley Freedman, Lori Friedman and Valerie Lemer won the Ladies Inter-Club Foursomes at South Herts Golf Club.
The Handicap Cup is presented to the team with the best combined net scores and Hartsbourne won this with a combined total of 153.