Pedzisa mutsara unotevera: Klaasen akasvika padanho rechipiri re
2012 World Championship aine 3<unk>1 kukunda Peter Wright, asi akarohwa 0<unk>4 naJames Wade munharaunda yechipiri. Mugumisiro wake wakanakisisa wegore ra2012 waiva kusvika kumakwikwi ekupedzisira kwechitatu yeUK Open Qualifier muna March apo akarasikirwa ne4 × 6 kuna Mark Jones. PaUK Open pachayo akakundwa muma64 ekupedzisira naRaymond van Barneveld 3<unk>9. Mushure mekuburitswa kwezvakazarurwa zvine chekuita nehupenyu hwega hwaKlaasen hwakatsanangurwa pazasi haana kutamba zvakare mune yasara ya2012, iyo yaisanganisira kupotsa 2013 World Championship.