Lizzie Deignan took her first victory since returning from maternity leave
The Orica-Scott rider launched an attack with 4.6km to go and soloed the rest of the way up the mountain.
The reigning world champion breaks free from the leading group inside the final kilometer to win the stage.
Wiggle-Honda satisfied with its showing at the Aviva Women's Tour as young talent continues to learn and notch big results
Flèche Wallonne organizers added a new climb near the finish of Wednesday's race, but the race could still be decided on the Mur de Huy
In the absence of five-time winner Vos, all eyes will be on world champ Ferrand-Prévot who faces challenges from several big names