Ramba uchinyora ndima iyi - Boin akanga ari mutezo wezvikwata zveBelgian zvepolo yemvura izvo zvakapedza zvechipiri muna 1908 uye zvechitatu muna 1912. Muna 1908 akapindawo mumakwikwi ekushambira 100 metres freestyle
, asi akabviswa mumutambo wokutanga.