Spain's Ona Carbonel and Paula Klamburg perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. Yukiko Inui and Risako Mitsui perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. A Chinese synchronized swimmer performs her free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Lolita Ananasova and Anna Voloshyna (Ukraine) perform duet free routine during the synchronized swimming preliminaries at the 16th 2015 World Aquatics Championships in Kazan.

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Chinese synchronized swimmer performs a duet free routine during the synchronized swimming preliminaries at the 16th 2015 World Aquatics Championships in Kazan.

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Huang Xuechen and Sun Wenyan (China) perform mixed duet free routine during the synchronized swimming preliminaries at the 16th 2015 World Aquatics Championships in Kazan.

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Japanese synchronized swimmer performs a duet free routine during the synchronized swimming preliminaries at the 16th 2015 World Aquatics Championships in Kazan.

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Lolita Ananasova and Anna Voloshyna (Ukraine) perform duet free routine during the synchronized swimming preliminaries at the 16th 2015 World Aquatics Championships in Kazan.

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Kazan, Tatarstan. Ukraine's Lolita Ananasova and Anna Voloshina perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. Yukiko Inui and Risako Mitsui perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. Spain's Ona Carbonel and Paula Klamburg perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. From left: Russia's Natalia Ishchenko and Svetlana Romashina perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. From left: Russia's Natalia Ishchenko and Svetlana Romashina perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. Spain's Ona Carbonel and Paula Klamburg perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

28.07.2015#2666685

Kazan, Tatarstan. From left: Russia's Natalia Ishchenko and Svetlana Romashina perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

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Kazan, Tatarstan. Spain's Ona Carbonel and Paula Klamburg perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

28.07.2015#2666683

Kazan, Tatarstan. From left: Russia's Natalia Ishchenko and Svetlana Romashina perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

28.07.2015#2666682

Kazan, Tatarstan. From left: Russia's Natalia Ishchenko and Svetlana Romashina perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

28.07.2015#2666681

Kazan, Tatarstan. From left: Russia's Natalia Ishchenko and Svetlana Romashina perform their free program during the preliminary round of the synchronized swimming duos event at the 16th 2015 FINA World Aquatics Championships.

28.07.2015#2666680