In 2015, Maksimova was member of the Russian Group that won gold at the inaugural 2015 European Games, they took gold in Group all-around and 5 Ribbons. At the 2015 World Cup Budapest, Maksimova with the Russian Group won gold in Group all-around, 5 Ribbons and bronze in 6 clubs / 2 Hoops. At the 2015 World Cup series in Kazan, Maksimova together with members of the Russian Group won the gold medal in Group all-around, In event finals: they also won gold in 5 ribbons and 6 clubs / 2 hoops.