In August 1964, Benka reached the final of the inaugural English girls championship at Wollaton Park, losing 2 and 1 to
Shirley Ward. Two weeks later, she won the
Girls Amateur Championship at Camberley Heath, having beaten Ward at the 19th hole in the semi-finals and
Kathleen Cumming 2 and 1 in the final. In April 1965, she won the
French junior championship. In October, she reached the semi-finals of the
Ladies' British Open Amateur Championship, losing to
Brigitte Varangot, a match delayed a day by rain. In 1967, she won the 72-hole
Astor Prince's Trophy by three strokes from
Angela Bonallack, while in 1968, playing with
Isa Goldschmid, she was runner-up in the
Avia Foursomes. In 1969, she and
Bruce Critchley reached the final of the
Worplesdon Mixed Foursomes and in 1970 she won the
Portuguese championship. She narrowly lost her foursomes match on the first day, playing with
Liz Chadwick and halving her singles match against
Nancy Syms in the final round of singles matches. Benka made her second appearance in the Curtis Cup at
Royal County Down in 1968. She was only selected for the foursomes, losing both matches. The team led after the first day but the United States had the better of the second day and won by 3 points. Benka played in the 1967
Vagliano Trophy match at
Royal Lytham, match that the Continent of Europe won by a single point. Benka was the non-playing captain in the
2002 Curtis Cup match. ==Personal life==