Kọ itẹsiwaju fun paragirafi yii - Forbes jẹ ọmọ ẹgbẹ ere idaraya awọn ọkunrin ti ilu Ọstrelia lati ọdun 1975 si 1980 ati ni akoko yii o ṣe aṣoju Australia ni Universiade Igba Irẹdanu Ewe ti 1977 ni Sofia, Bulgaria
, 1978 World Artistic Gymnastics Championships ni Strasbourg, France, 1979 Summer Universiade ni Mexico City ati 1979 World Artistic Gymnastics Championships ni Fort Worth, Texas. Ó gba àmì ẹ̀yẹ idẹ nínú ìdíje àwọn ọkùnrin nínú ìdíje Commonwealth Games ní Edmonton, Kánádà ní ọdún 1978.