Dee ihe na-esote paragraf a - O nwetara ihe nrite ọlaedo na Iko Mba Europe nke 2007
o jigidere aha ya na 2007 European Athletics U23 Championships na oge kachasị mma nke 9:39.40. O mere ngosipụta mbụ ya maka Poland na 2007 World Championships na Athletics mgbe e mesịrị n'afọ ahụ, na-ewepụ ya na ọkwa ọkụ. N'ọnwa Disemba, o meriri ọla nchara nke otu na ndị otu na asọmpi n'okpuru afọ 23 na 2007 European Cross Country Championship. Ọ nọchitere anya Poland na 2008 Beijing Olympics, mana ọzọ enweghị ọganihu karịa okpomọkụ nke steeplechase. N'ịbụ onye dekọtara oge kachasị mma nke 9:26.93 na ọkụ ọkụ, Kowalska ruru ikpeazụ ikpeazụ ya nke mbụ na 2009 World Championships na Athletics wee kwụsị n'ọnọdụ nke iri na abụọ. A họpụtara ya ka ọ gbaa ọsọ na 2009 IAAF World Athletics Final ma ọ gwụchara na nke asatọ.