Mezue ahịrịokwu na-esonụ: Callaway ghọrọ onye nkuzi ịgba egwu ice nke mba West Germany na 1969, ebe ọ zụrụ Angelika na Erich Buck iji nweta ọla edo na 1972 European Championships. Mgbe ọ laghachiri UK, ọ zụrụ di na nwunye Hungary bụ Krisztina Regőczy na András Sallay, bụ ndị
ndị mmeri ụwa na ndị meriri ọlaọcha n'egwuregwu Olympic n'afọ 1980.