Hickleton Ladies B team beat Moortown 4&3 to win the Yorkshire Ladies County Golf Association KO at Malton & Norton.
The Doncaster club, who last reached the final back in 1990, were one of four teams to reach the final from an initial entry of 200.
They reached the afternoon’s final after beating Thirsk and North Allerton 4&3 in their morning semi-final.
“It was a tremendous victory for the club,” said spokeswoman Janet Crosby.
Luke Gregory won Doncaster Golf Club’s club championship over the weekend when a number of other finals were decided.
Simon Hickson won the Captain’s Prize competition with Stuart Rawson and Bob Rawson taking the honours in the Burnett foursomes.
Paul Liddle and Jen Rowland won the mixed foursomes with Joe Leedale and Gavin Pickering claiming victory in the men’s better-ball final.
Liddle also proved to be the man to beat in the Autumn medal competition.
Tony Wesley won the Dicky Dunn competition with Jill McGarvie taking the honours in the Clarvis Cup.
Ginette Botting lifted the Julie Horncastle Trophy.
Anne Moore and Judith Hudson teamed up to win the Margaret Walters Trophy.
Eighty year-old Lenny Garrison beat Tony McGarry 5&4 in the final of Thorne’s match play competition.
Nicky Stewart (39 points) won the captain’s away day competition at Wath.
Ian Strickland (35) was runner-up and Ian Hedley (34) third.
Steve Beastall (net 65) won the club’s weekly Wednesday Summer League competition from Ken Robinson (66) and John Norton (67).
Graham Rainford (net 65) had a three-stroke advantage over runner-up John Booth (68) in the club’s seniors’ competition. Ken Robinson (69) was third.