Dutchman Lars Boom (Rabobank) has won Sunday's fifth stag in the Tour of Belgium. The overall leader came in first after a final time trial over 16.7 kilometres. Sébastien Rosseler (Quick.Step) won the time trial with a time of 20:53. Boom won the fifth stage in the Tour of Belgium and remains leader. Dutch compatriot Koos Moerenhout came in second. Dominique Cornu (Belgim) took a third place in the overall standings.