Norway midfielder Guro Reiten scored twice in the first 10 minutes as Chelsea won easily at Bristol City.
Reiten charged down Meaghan Sargeant’s clearance and received Beth England’s return ball to slot in from six yards.
She volleyed home Chelsea’s second from Erin Cuthbert’s cross before Ji So-Yun netted at Sophie Baggaley’s near post.
Sophie Ingle tapped home the fourth from close range to leave Chelsea third with seven points from three games while winless Bristol City are 10th.
The game was over as a contest after Chelsea’s three early goals and Baggaley made fine saves from England and Maria Thorisdottir to prevent the Blues’ margin of victory being greater.
Bristol City – who are yet to score in the Women’s Super League this season – failed to register a single shot on target and the closest they came was a second-half cross-shot from Carla Humphrey that Chelsea keeper Ann-Katrin Berger tipped over from under her own bar.