 Osman Kamara akaberekwa musi wa31 Zvita 1987 mutambi wekushambira wekuSierra Leone. Akakwikwidza mumakwikwi e100 m freestyle, 50 m backstroke uye 50 m butterfly pamakwikwi e2012 FINA World Swimming Championships 25 muye mumakwikwi e50 m freestyle uye 50 m butterfly pa2013 World Aquatics Championships muBarcelona. MuBarcelona akaisa zvinyorwa zvenyika zve50 m butterfly uye 50 m freestyle. 