Whakakī i te rerenga e whai ake nei: I te tīmatanga he kaiwhakaari hākinakina, i uru a Roleder ki te hākinakina i te 8 o ona tau i te wa i kite ai te kaiako hākinakina a Mr Grosser i tana tere tere tere me te tono ki a ia kia uru atu ki tana karapu rere, i reira i whakataetae ai a Roleder ki nga tamariki 1 <unk> 2 tau te pakeke ake i a ia. I timata ia i tana whakataetae a-ao i te 2007 European Junior Championships i reira i mutu ai ia i te tuawha. I te tau 2011 i riro i a ia tana mētara tuatahi o te ao i te
Ko ngā Whakataetae Pākehā o raro i te 23 tau i Ostrava.