 Kọkọ parí gbólóhùn tó wà nísàlẹ yìí: Ní 2005 ICF Sprint Canoe World Championships, Johnson parí ipò kẹjọ nínú K-1 500 m àti ipò kẹjọ nínú K-1 1000 m. Níbi tí : 2006 ICF Sprint Canoe World Championships, Johnson parí 6th ni K-1 500 m ati 7th ni K-1 1000 m. Ní 2007 ICF Sprint Canoe World Championships, Johnson parí 4th nínú K-1 1000 m àti 5th nínú K-1 500 m. Ni 2010 ICF Sprint Canoe World Championships, Johnson ati ẹlẹgbẹ rẹ Krisztina Fazekas-Zur pari 10th ni iṣẹlẹ K-2 500 m, ti o ṣẹgun B-opin. 