The meeting lasted 50 minutes and ended with a score of 6: 1, 6: 1 in favor of the Russian-Belgian duo.
For 24-year-old Kudermetova, this is the first WTA doubles title in her career.
25-year-old Martens, in turn, won her 12 trophy in pairs.
Earlier it was reported that Nadal won the ATP tournament in Barcelona for the 12th time, defeating Tsitsipas.