Russian synchronized swimmers Natalia Ishchenko and Svetlana Romashina took their fourth Olympic gold medals and defended their 2012 duet title on Tuesday, out-scoring their nearest competitors by 2.6222 points.

Ishchenko and Romashina’s “mermaid” themed routine earned them 98.5333 points, combining with their technical program from Tuesday to win the gold with 194.9910 total points. They became the second Russian pair to repeat as duet champions, as countrywomen Anastasia Ermakova and Anastasia Davydova won in both 2004 and 2008.

On Thursday, Ishchenko and Romashina will join the rest of the Russian squad in the team event to go for the country’s fifth consecutive gold in that discipline, too. If they win gold, Ishchenko and Romashina can tie Davydova for the record of most golds for a synchronized swimmer at five.

Huang Xuechen and Sun Wenyan of China claimed the silver with 192.3688 points, marking the best-ever finish for China in duet at the Olympics. Japan missed the duet podium in 2012, but Yukiko Inui and Risako Mitsui earned 188.0547 for bronze medals in Rio.

Mariya Koroleva and Anita Alvarez, the U.S. duet, finished in ninth place with 173.9945 points. Koroleva competed at the 2012 Olympics with a different partner and finished 11th, while Alvarez made her Olympic debut in Rio.

Join our Newsletter for the latest news right to your inbox