For 1973, Shadow entered F1, and Oliver was nominated as team leader. The Shadow DN1 proved a difficult chassis, and once again his season was blighted by mechanical errors. However, in the Canadian Grand Prix he ran well, and many believe he actually won the race, but the lap charts were thrown into confusion by a rain shower meaning multiple pit-stops, and a staggeringly inept deployment of a pace car by the organisers. As it was, Oliver was classified third, his only points finish of the year.