KILLARNEY, Ireland (AP) _ The combined Britain-Ireland team retained the Curtis Cup today, handing the squad of U.S. amateur women golfers still another loss in the biennal series.

Britain-Ireland clinched the cup when Alison Rose defeated American Ellen Port 6 and 5 in singles to give Britain and Ireland an unbeatable 9-4 lead.

Leading 6-3 after the first day, Britain-Ireland won two of today's three foursomes to open up an 8-4 lead.

In addition to Rose's clinching victory over Port, Britain-Ireland was also leading in several of the remaining five singles matches and seemed bound for its biggest win in history over the Americans.

The United States team has won only once in the last six competitions, but still lead the series 20-6 with three ties.

The United States lost both the Ryder and Walker Cups last year _ the biennial competitions for professional and amateur men. The only one of the four major cups the Americans hold is the Solheim for pro women golfers, which will be played in September in Wales.

In today's foursomes, the Britain-Ireland team of Janice Moodie and Mhairi McKay defeated Kellee Booth and Sarah LeBrun Ingram 3 and 2, and Rose and Lisa Dermott defeated Marla Jemsek Brenda Corrie-Kuehn 2 and 1.

The only American win came when Port and Kelli Kuehne defeated Julie Hall and Lisa Educate 1-Up to keep the match alive.