Whakaotihia te rerenga e whai ake nei: I te 2005 ICF Sprint Canoe World Championships, i mutu a Johnson i te 8th i te K-1 500 m me te 8th i te K-1 1000 m. I te 2006 ICF Sprint Canoe World Championships, i mutu a Johnson i te 6th i te K-1 500 m me te 7th i te K-1 1000 m. I te
2007 ICF Sprint Canoe World Championships, I mutu a Johnson i te tuawha i te K-1 1000 m me te tuawha i te K-1 500 m. I te 2010 ICF Sprint Canoe World Championships, ko Johnson me tana hoa kapa Krisztina Fazekas-Zur i mutu i te 10th i roto i te kaupapa K-2 500 m, i wikitoria i te whakamutunga B.