Buuxi weedhan soo socota: Jiří Krejza waa nin horey ugu tartamay canoeist Swiss slalom oo u dhashay Czechoslovakia oo tartamay horraantii 1970-yadii ilaa horraantii 1980-yadii. Wuxuu ku guuleystay afar billadood ICF Canoe Slalom World Championships oo dahab ah (C-2: 1973 ee Czechoslovakia), laba billadood oo qalin ah (kooxda C-2: 1973 ee Czechoslovakia,
1977 ee Switzerland) iyo naxaas (Mixed C-2: 1971 ee Czechoslovakia).