Whakaotihia te rerenga e whai ake nei: I te tau 2009, i te taha o tana whakapakari kaha, ka tiimata a Duke ki te uru atu ki nga huihuinga hakinakina para. I whakataetae ia i te F40 i tukuna me te tao i te CP Sport Grand Prix i Nottingham me te Czech Open. I te tau 2010, tae atu ki te Nottingham Grand Prix, i uru ano a Duke ki te Berlin Open. I Berlin, i mutu ia i te tuawha i roto i te kōpae me te pupuhi, me te tuatahi i roto i te tao, e taurite ana ki tana tino pai o 29.53m. I te tau 2011 i riro i a Duke te mētara koura i te tao i te IWAS World Junior Championships i tu ki Dubai, ana i tuhia he rekoata whaiaro i te tao o 33.38m i te Czech Open. I kite hoki a Duke i te tau 2011 i te tohu mō te
Ko te IPC Athletics World Championships i te F40 <unk> tao a nga taane. Ko tana maka o te 32.64 i whiwhi ai ia i te mētara parahi.