Rinus VeeKay, 17, secured the championship – plus a Mazda Scholarship prize worth almost $800,000 to progress into Indy Lights Presented by Cooper Tires in 2019 – with a conservative drive to second for Juncos Racing, while Oliver Askew, 21, scored an overdue maiden victory for Cape Motorsports

Dutch teenager Rinus VeeKay (Juncos Racing) has a substantial lead over Canadian Parker Thompson (Exclusive Autosport) in the quest for a Mazda Scholarship worth almost $800,000 to step up to Indy Lights in 2019.

Rinus VeeKay extended his Pro Mazda Championship Presented by Cooper Tires lead to 47 points after a dominating performance at the Mazda St. Louis Pro Mazda Oval Challenge at Gateway Motorsports Park

VeeKay scores his fifth straight victory while Megennis earned his third straight podium

Sting Ray Robb carries the Team Pelfrey banner to fourth position in Saturday's Mazda Pro Mazda St. Louis Oval Challenge