Their world champion status qualified the lightweight foursome for the 2012 London Olympics for which they prepared by racing at two World Rowing Cups in Europe. At the 2012 Olympic regatta they placed second in the heat, third in the semi-final and made the Olympic final, finishing in fourth place. Beltz was back again to represent Australia at the elite level in 2014. He competed in the lightweight coxless four at the World Rowing Cup III in Lucerne and then at the 2014 World Championships. In Beltz's last Australian representative appearance the four finished fifth.