Outsiders for the win included Silvia Persico of UAE Team ADQ, Elisa Longo Borghini of Trek–Segafredo and Liane Lippert of Movistar.

[3] On the decisive climb of the Côte de La Redoute, Marlen Reusser of SD Worx attacked from a five rider breakaway.

She quickly gained a 45 second lead, with a subsequent attack from Annemiek van Vleuten splitting the peloton behind.

[1][4] On the Roche aux Faucons, Longo Borghini attacked from a chasing group, catching Reusser.

She also became only the second woman to win the Ardennes classics triple - following Anna van der Breggen in 2017.