Commonwealth Games road race champion Lizzie Armitstead (Boels Dolmans) won the Boels Rental Hills Classic race in the Netherlands on Friday.
Armitstead was part of a five-rider lead group, which also included defending champion Emma Johansson (Orica-AIS), that formed after the decisive climb of the Cauberg in the 131.4-kilometre, UCI 1.1-ranked race.
Swede Johansson finished in second spot, with Polish rider Katarzyna Niewiadoma (Rabobank-Liv) in third.
It's Armitstead's fifth victory of the season so far, after she won two stages and the overall classification at the Tour of Qatar, and the Trofeo Alfredo Binda in Italy.
Armitstead won the UCI Women's World Cup last season.
Video: Lizzie Armitstead targetting World Championships success
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