DETROIT -- Scott Dixon raced to his first IndyCar victory of the season, outlasting Ryan Hunter-Reay by 1.8 seconds at Belle Isle.
Dixon hadn't led a lap all season until Saturday, but this was his fourth top-five finish in seven races this year. It was his 42nd career victory in the series, moving him into a tie for third on the career list with Michael Andretti.
Alexander Rossi finished third, followed by pole winner Marco Andretti.
Rossi took over the season points lead. Indianapolis 500 winner Will Power dropped from first to third in the standings with a seventh-place showing at Belle Isle.