Mezue ahịrịokwu a: Klaasen ruru agba nke abụọ nke
2012 World Championship na 3<unk>1 meriri Peter Wright, mana James Wade meriri ya 0<unk>4 na agba nke abụọ. Nsonaazụ ya kachasị mma nke 2012 bụ iru nkeji iri na ise nke atọ UK Open Qualifier na Machị ebe ọ tụfuru 4 × 6 na Mark Jones. Na UK Open n'onwe ya, Raymond van Barneveld meriri ya na 64 ikpeazụ 3<unk>9. Mgbe ekpughere ihe banyere ndụ onwe Klaasen nke akọwapụtara n'okpuru ebe a, ọ naghị egwu egwu ọzọ na afọ 2012, nke gụnyere ịhapụ asọmpi Iko Mbaụwa nke 2013.