After switching to the TV Länggasse club under coach Adrian Gubler, in 2019 she began to focus solely on the triple jump (excepting one heptathlon competition in 2021).[2][1] In 2021, Gubler achieved the top Swiss mark in the long jump despite spending most of her time working as a market manager at Swiss Federal Railways and being a part-time student.[2]
At the 2021 Swiss Athletics Championships on 27 June, Gubler leapt 6.37 metres on her sixth and final attempt to take the lead over Gaëlle Maonzambi, achieving her first national championship title.[1] Later that season on 15 August, Gubler was the top female competitor at the Championnats Romands Open in Lausanne with a 14.69 metres leap, competing against both male and female competitors.[4]