Nick Cassidy's victory shakes up Formula E's debut in Portland.

The first Formula E race at Portland International Raceway saw Envision Racing’s Nick Cassidy take the win after a strategic battle for top spot that saw positions and race leaders change corner by corner in groups five and six wide at points, resulting in 403 passes during the race. Cassidy led several times before making a decisive move to the front past the TAG Heuer Porsche of António Felix da Costa on the 28th of the 32 laps. Jake Dennis finished second, becoming the new world championship leader by a single point over Cassidy.