Nyora kupfuurira kweiyi ndima - Pa2005 ICF Sprint Canoe World Championships, Johnson akapedza 8th muK-1 500 m uye 8th muK-1 1000 m. Pana 2006 ICF Sprint Canoe World Championships, Johnson akapedza 6th muK-1 500 m uye 7th muK-1 1000 m. Pa 2007 ICF Sprint Canoe World Championships
, Johnson akapedza wechina muK-1 1000 m uye wechishanu muK-1 500 m. Pa2010 ICF Sprint Canoe World Championships, Johnson nemumwe wake Krisztina Fazekas-Zur vakapedza 10th muK-2 500 m chiitiko, kuhwina B-yekupedzisira.