Kammala jumla mai zuwa: A matakin kasa da kasa ya kasance dan takara sau uku a Gasar Cin Kofin Duniya ta IAAF, wanda ya gudana a 1981, 1986 da 1987, kuma mafi kyawunsa a can shi ne na 114. Ya wakilci kasarsa a gida a Warsaw a gasar zakarun duniya ta 1987 IAAF, inda ya sanya 145th gaba daya kuma ya taimaka wa Poland zuwa 17th a cikin rukunin rukunin tare da Krzysztof Wesołowski, Bogusław Mamiński, Jan Huruk, Sławomir Gurny, da Andrzej Malicki. Psujek ya yi tsere a gasar cin kofin duniya ta 1987 marathon a wannan shekarar, amma ya kasa gamawa. Ya kuma gudu a
1987 Kofin Turai na 10,000 m, sanya 6th, da 1988 Kofin Marathon na Turai, sanya 33rd.