 Nyorai kuenderera mberi kweiyi ndima - Dumitru akamiririra nyika yake kaviri paWorld Sprint Speed Skating Championships yeVakadzi: muna 2006, achipedza 33rd yakazara uye muna 2010, achipedza ari wechi24 pakupedzisira. Akakunda menduru yebronze pa2010 North American Speed Skating Championships. Akatora chikamu muEuropean Speed Skating Championships yeVakadzi muna 2005, 2006, 2007 na2009. Akakwikwidzawo kumakwikwi epasirese, kusanganisira ISU Speed Skating World Cups. 