Schreiber was selected to represent Victoria at the three day event of the Australian Paraplegic Games held in Adelaide, South Australia, September 1964. She was among the first sixteen gold medal athletes from Victoria, winning four gold medals at these games. Her success led to selection of one of only two Victorian athletes of the 15 member Australian team, to compete at the 1964 Summer Paralympics. At these games, she won Australia's fourth gold medal in the women's club throw A class event with a throw of 17.31 metres, a silver medal in the women's javelin A event with a throw of 9.26 metres, and a bronze medal in the women's table tennis singles B class event. Schreiber and fellow team member Daphne Hilton were two of only three female athletes who contributed to Australia gaining fourth place in the medal tally behind United Kingdom, USA and Israel, at the 1964 Summer Paralympics. At the Fourth Australian Paraplegic Games held in Brisbane Queensland, April 1966, Schreiber won seven gold medals in field events and table tennis, breaking the world record in precision javelin throw.