Whakaotihia te rerenga e whai ake nei: I tāpirihia e Johnson ki tana kohinga mētara Paralympic i te
London 2012 Paralympics, i a ia e whakatakoto ana i tetahi rekoata Paralympic hou i te huarahi. I tuhia e Johnson te wa pai o te waa mo te 1:40.90, hei tango i te mētara parahi i te SB6 100 mita i muri. I roto i te hanganga ki tana wha o nga Paralympics i Rio, i whakahaerehia a Johnson mo te hernia. I a ia e whakaora ana, i kitea e ia kei muri ia i tana whakangungu, i pa ki tana whakaritenga mo nga whakamatautau Paralympic 2016. Na te kore o tana mahi i nga whakamatautau i whakatau ai ia ki te reti mai i te kaukau whakataetae.