After the US Open, Paszek entered the Challenge Bell in Quebec City. She lost in the first round to Christina McHale. She then played two ITF events in the United States. The first tournament was the Coleman Vision Tennis Championships. Paszek got a three set victory over Olivia Rogowska in the first round. She was then defeated in the second round by eventual finalist Anna Tatishvili. At the Party Rock Open, Paszek defeated Adriana Pérez in the first round. In the second, she lost to sixth seed, eventual finalist, and doubles partner CoCo Vandeweghe. However, she did capture the doubles title with Vandeweghe marking her first tournament win in either singles or doubles in 2013. Her most impressive result of the year came in France at the Open GDF Suez Région Limousin, a $50,000 tournament. Unseeded, Paszek advanced to the final with wins over Johanna Konta, Andreea Mitu, Nina Zander, and Sílvia Soler Espinosa. However, her run came to an end as she lost in the final to Kristýna Plíšková. Despite the loss, she climbed back inside the top-200 and recorded her first set of consecutive wins since the Hansol Korea Open. Competing at the Internationaux Féminins de la Vienne as a wildcard, Paszek beat Johanna Konta in the first round. In the second round, she was defeated by fifth seed Alexandra Cadanțu. Playing in Great Britain at the Aegon GB Pro-Series, Paszek won a tough three set match over Andreea Mitu in the first round. She was then defeated in the second round by seventh seed and eventual finalist Kristýna Plíšková. Her final tournament of the year was at the Al Habtoor Tennis Challenge in Dubai. After beating Storm Sanders in her first round match, she lost in the second round to second seed and compatriot Patricia Mayr-Achleitner.