 Ṣẹ ọrọ tó wà nísàlẹ yìí dópin: Nígbà tí Wallin wà ní ọmọ ọdún mẹtàlá, ó kópa nínú ìdíje World Junior Speed Skating Championships 2002. Wallin soju fun orile-ede re ni ife-eye World Sprint Speed Skating Championships fun awon obirin merin ati ni ife-eye World Single Distance Speed Skating Championships meji. O kopa ninu idije World Sprint Championships ni 2006 ti o pari 29th lapapọ, 2007 ti o pari 23rd lapapọ, : 2008 ìparí 30th overall àti 2009 ìparí 26th overall. Ní 2007 World Single Distance Speed Skating Championships, ó kópa nínú ìdíje 500 metres 17th àti nínú ìdíje 1000 metres 22nd. Ọdún méjì lẹyìn náà ní 2009 World Single Distance Speed Skating Championships, ó kópa nínú ìdíje 500 metres. O tun dije ni awọn idije kariaye miiran, pẹlu ni ISU Speed Skating World Cups. 