Career
He also obtained a career best result with a single victory for the German squad at the 2012 Kieler Woche Tournament in Kiel. As of September 2014, Gerz is ranked northern 13 in the world for two-person dinghy class by the International Sailing Federation.
Gerz qualified as a crew member for the German squad in the men"s 470 class at the 2012 Summer Olympics in London by placing fifteenth and receiving a berth from the ISAF World Championships in Perth, Western Australia.
Teaming with skipper Patrick Follmann in the opening series, the German duo recorded a score of 105 Netto points to establish a thirteenth-place finish in a fleet of twenty-seven boats.