Le duathlon unalo zifana ukuya Biathlon nje into yokuba ibandakanya imidlalo ezimbini, ezahlukeneyo ukususela oku ukuba umdlalo ebusika. omkhulu ukufana yalo kunye netrayethloni, nangenxa bako iintlanga ezintathu, ngokubuyisela inxalenye yokudada ukuba uhlanga olutsha uhlanga. Eminye imidlalo kwakhona livela netrayethloni na Aquathlon, okuhlanganisa ukuqubha kwaye isebenza ngaphandle inxalenye ebandakanya ibhayisikile ubuhlanga kunye aquabike, ezibandakanya ukuqubha nangebhayisekile, hayi ubuhlanga.