 Kọkọ parí gbólóhùn tó wà nísàlẹ yìí: Hartman ṣojú fún orílẹ-èdè rẹ ní ìdíje World Sprint Speed Skating Championships fún àwọn obìnrin mẹrin àti ìdíje World Single Distance Speed Skating Championships mẹta. Ní ìdíje World Sprint championships, ó díje ní ọdún 2003 ó parí ipò 22nd overall, 2008 ó parí ipò 9th overall, : 2009 ìparí 21st lapapọ ati 2010 ìparí 22nd lapapọ. Ní 2008 World Single Distance Speed Skating Championships ó kópa nínú ìdíje 500 metres 18th ní 2009 World Single Distance Speed Skating Championships ó kópa nínú ìdíje 500 metres 19th àti 1000 metres 18th; àti ní 2012 World Single Distance Speed Skating Championships ó kópa nínú ìdíje 1000 metres 22nd. O tun dije ni awọn idije kariaye miiran, pẹlu ni ISU Speed Skating World Cups. 