Kammala wannan jumla: Lehis ya fara fencing a shekara ta 2004. Wanda Helen Nelis-Naukas da Peeter Nelis suka horar da ita, ta kasance memba ce ta matasa da 'yan wasan Estonia na wasan ƙwallon ƙafa tun daga 2009. A cikin 2014, Lehis ya lashe zinare na mutum a Gasar Zakarun Duniya ta Junior kuma an nada shi matashin ɗan wasan Estonia na Shekara. Ta lashe lambobin azurfa na kungiya a gasar zakarun Turai ta 2015 da Wasannin Turai na 2015. A cikin 2018, Lehis ya lashe zinare na mutum a gasar
Gasar Zakarun Turai ta 2018. A Wasannin Olympics na Tokyo na 2020, ta lashe lambar zinare a cikin kungiya da tagulla a cikin kungiya.