At Vuelta a Burgos 2026, she launched off Elisa Longo Borghini's wheel on a 6% incline and outpunched the Giro d'Italia winner. At Tour of Britain Women 2026 stage 4 — nearly 2,000 metres of elevation, multiple GC attacks on the final climbs — she survived and won the reduced sprint. Her agent's December 2025 assessment: «Hilly stages are, for her, no problem anymore.» Wiebes herself is now framing it as a deliberate project, with Tour de France Femmes 2027's UK parcours as the target: «I want to develop myself more in the hills and keep the sprint also, because if you see next year's Tour de France here in Britain, then it will be a tough one.» The window for outmaneuvering her on terrain is narrowing fast.