The rival of the Russian tennis player, Chinese Zheng Saysai, refused to continue the match with a score of 5: 0 in favor of Kudermetova.
The athletes spent 28 minutes on the court.
In the quarterfinals, Kudermetova will play against Ukrainian Dayana Yastremskaya, who defeated another representative of China, Peng Shuai.
Earlier, Anastasia Pavlyuchenkova beat Barbara Haas and entered the second round of the WTA tournament in Linz.