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Leon Marchand of France celebrates after competing in the men's 200-meter individual medley semifinals at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Ng Han Guan)

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Leon Marchand of France competes in the men's 200-meter individual medley semifinals at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Vincent Thian)

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Summer Mcintosh of Canada competes in the women's 200-meter butterfly semifinal at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Lee Jin-man)

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Leon Marchand of France reacts after competing in the men's 200-meter individual medley semifinals at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Ng Han Guan)

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Leon Marchand of France celebrates after receiving an award for creating a new world record following the men's 200-meter individual medley semifinals at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Ng Han Guan)

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Leon Marchand of France competes in the men's 200-meter individual medley semifinal at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Lee Jin-man)

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Leon Marchand of France reacts after competing in the men's 200-meter individual medley semifinals at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Lee Jin-man)

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Leon Marchand of France celebrates after competing in the men's 200-meter individual medley semifinals at the World Aquatics Championships in Singapore, Wednesday, July 30, 2025. (AP Photo/Ng Han Guan)