Simona de Silvestro’s attempt to become the first woman to win a major open-wheel motor-racing title ended in disappointment when she was knocked out of the Atlantic Championship finale on the opening lap at Laguna Seca. Instead, 18-year-old polesitter John Edwards won both the race and the title at the expense of team-mate and USF1 hopeful Jonathan Summerton, who finished second in both.

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Atlantics: Edwards wins championship tie-break as De Silvestro crashes out