Russia's Margarita Mamun avenged team-mate Yana Kudryavtseva for her defeat at the European Games in Baku with a superb all-around victory at the Rhythmic Gymnastics World Cup in Kazan as the hosts triumphed in every event.
Mamun, 19, finished on a score of 75.550 points after the hoop, club, ball and ribbon events to narrowly edge out reigning world champion Kudryavtseva on 75.250 and make ammends for her silver medal behind the 17-year-old in the Azerbaijani capital in June.
Aleksandra Soldatova took bronze on 74.300 to ensure a Russian clean sweep, as Belarus' Baku 2015 bronze medallist Melitina Staniouta proved best of the rest in fourth.
It sets the stage perfectly for another dual at next month's World Championships in Stuttgart between the two teenagers, with both looking to take the bragging rights ahead of the Olympic Games in Rio de Janeiro.
In the absence of Kudryavtseva, Mamun proved utterly dominant on the second day of competition as she won all four individual events.
She was the only gymnast to score over 19 points in any, posting 19,100 to win with a hoop, 19.050 in the ball event, 19.100 in the clubs competition and 19.100 in the ribbon finale.
Soldatova took silver in all four events, while Staniouta took ball and ribbon bronzes and there were also podium finishes for South Korea's Son Yeon Jae and Salome Pazhava of Georgia in their respective hoop and clubs event.
Russian domination continued in the three team events, with a comfortable all-around victory over Belarus and Israel followed by wins today in the five ribbons, and three clubs and two hoops competitions.
Bulgaria and Belarus took a silver and a bronze apiece, with Belarus' in the former event shared with Japan.
August 2015: FIG World Cup Series to end in Kazan as rhythmic gymnasts look ahead to World Championships