Mezue ahịrịokwu na-esonụ: Site na Basel ebe Alan Wisslé na-azụ ya, ọ gụrụ akwụkwọ nchịkwa azụmahịa na Mahadum St. Gallen. Lang nwetara ahụmịhe mba ụwa mbụ ya na 2013 European Youth Summer Olympic Festival (EYOF) na Utrecht ebe ọ kwụsịrị n'ọnọdụ nke asaa na 1.72m. N'afọ na-eso ya, ọ gara asọmpi Olimpik nke Ndị Ntorobịa n'oge ọkọchị nke afọ 2014 ebe ọ ruru ebe nke ise na 1.73m. O sonyere na 2015 European Athletics Junior Championships na Eskilstuna wee mechaa nke asaa na 1.79m. O mechakwara nke asaa na 2016 IAAF World U20 Championships na Bygdoszcz na ịdị elu nke 1.83m. Ọ bịara nke anọ na
2017 European Athletics U23 Championships ọzọ na Bydgoszcz na a itu ukwu nke 1.86m. N'afọ 2020, o setịpụrụ ihe ndekọ ụlọ ọhụrụ nke Switzerland na 1.94 m na St. Gallen nke mere ka ọ bụrụ onye nke asatọ n'ụwa niile maka afọ ahụ. Lang emeriwo ọtụtụ aha mba; na 2014, 2015, 2017, 2019 na 2020, Lang bụ onye mmeri Switzerland na elu elu n'èzí, na 2016 na site na 2019, 2020, na 2021 na ime ụlọ.