In 2012 van Gerner competed at EK Brussels where she placed fifth on the uneven bars. She competed at three Challenger Cups, Ghent, where she won on uneven bars and got second on balance beam, Maribor, where she won on both uneven bars and balance beam, and Cottbus, where she got second on uneven bars. At the Dutch Championships she was won gold in the all-around and on uneven bars and won silver on balance beam. She competed at the 2012 Summer Olympic Games in London where she placed 12th in the All-Around and was the first reserve on uneven bars. She once again won the award for Sportswoman of the year for the Northeast KNGU.