Folker made his own swimming history at the 1999 Summer Universiade in Palma de Mallorca, Spain, where he earned a bronze medal in the 100 m freestyle at 50.77, finishing behind Russia's Denis Pimankov and Italy's Mauro Gallo. When his nation South Africa hosted the All-Africa Games in Johannesburg on that year, Folker added two more medals to his career hardware in front of a massive home crowd: a silver in the 50 m freestyle (22.83) and another bronze in the 100 m freestyle (50.61).