[3] Chadwick played for England in that years Women's Home Internationals.and for Great Britain & Ireland in the Vagliano Trophy match at Muirfield.

[8][9] Later in 1966 she won the Ladies' British Open Amateur Championship at Ganton, beating Vivien Saunders 3&2 in the 18-hole final.

[10][11] Chadwick retained the title the following year, 1967, at Royal St David's, beating Mary Everard in the final.

[13] Chadwick played a number of international matches in 1967, playing for Great Britain in the Commonwealth Trophy in Canada, for Great Britain & Ireland in the Vagliano Trophy and for England in the European Ladies' Team Championship in Portugal and the Women's Home Internationals.

[14][15][16][17] Chadwick retired from top-level golf in early 1968, missing out on selection for that years Curtis Cup team.