Leimer continued in the series for 2009, partnering Pål Varhaug, the reigning Italian Formula Renault 2.0 champion. During the first six rounds of the season, he took race wins in Pau, Valencia, Brno, Brands Hatch and Spa-Francorchamps, the latter event supporting the 2009 Belgian Grand Prix. Leimer then sealed the title with his sixth win of the season, at the seventh round in Oschersleben.