In 2016, she won the Coupe d'Espagne. In September, she took part in the Tour de l'Ardèche in the international team. On the third stage, the first breakaway started at the 12th kilometer. It was composed of Dany Christmas, Anna Plichta, Sara Olsson, Vita Heine and Silvia Valsecchi. Twenty kilometers away, they were joined by Kiesenhoffer. In the descent of the pass of Murs, the group were seven minutes and twenty-five seconds ahead. After Blavac, Anna Plichta went off alone and she had a lead of a minute thirty at the foot of Mont Ventoux. On the ascent Kiesenhoffer joined her. She won the stage by almost four minutes over Flávia Oliveira and she took the lead in the overall standings. The next day, Flávia Oliveira escaped in turn and she took Kiesenhofer's pink jersey. She kept her second place in the overall standings until the end of the race.