2009 was a quiet year for Zacchia, racing only on a couple of occasions in the International GT Open but also raced one round of the 2009 Le Mans Series season, reuniting with Larbre Compétition in the 1000 km of Catalunya. Only four cars competed in the GT1 class in which Zacchia raced in with a Saleen S7-R. Zacchia along with Roland Bervillé and Sébastien Dumez finished third in class and 22nd overall. 2010 saw another year of Le Mans Series racing for Zacchia, this time for Swiss team Hope Polevision Racing. He competed a full season in the one-make Formula Le Mans (FLM) class along with Luca Moro and Wolfgang Kaufmann. The trio took their only class victory of the season at the 100 km of Spa. Zacchia and Moro finished runners-up in the drivers and teams championships. Zacchia is set to race in 2011 once again for Hope Racing in the Intercontinental Le Mans Cup driving an Oreca 01 Hybrid chassis. It will be powered by a two-litre four cylinder petrol engine from Volkswagen modified by Lehmann Motoren, badged as Swiss HyTech. It also features KERS, an automotive system whereby the kinetic energy of a moving vehicle is recovered under braking and stored in the flywheel for later use under acceleration, developed by Flybrid. Zacchia is set to compete with this car in the LMP1 class in the ILMC and at this year's 24 Hours of Le Mans alongside French driver Nicolas Marroc and Le Mans veteran and 1988 winner Jan Lammers.