Pedzisa mutsara unotevera: Pa2005 ICF Sprint Canoe World Championships, Johnson akapedza ari wechi8 muK-1 500 m uye wechi8 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 4th muK-1 1000 m uye 5th 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.