Between 1969 and 1975, Langrope made 19 senior appearances for New Zealand. On 20 June 1969 she made her senior debut for New Zealand against Australia. She was selected as a replacement for Judy Blair after she dropped out to attend her brother's wedding.[1] She was subsequently a member of the New Zealand team that won a silver medal at the 1971 World Netball Championships.[4][5][6][7][8] In 1974 she captained New Zealand for an away series against England. Her team mates for the series included her cousin, Maxine Blomquist.[1][2] She again captained New Zealand when they won a bronze medal at the 1975 World Netball Championships. However, she was injured during the tournament and had to watch the final matches from the sidelines.[5][6][7][9][10] In June 2000, at a celebration of Netball New Zealand's 75th anniversary, Langrope was named as a reserve in a New Zealand "dream team".[11]