French swimmer makes history in Paris 2024 Olympicsbr br Léon Marchand pulls off one of the most audacious doubles in swimming history at the Paris 2024 Olympics, winning the 200-meter butterfly and the 200 breaststroke about two hours apart in front of a home crowd cheering his every stroke on July 31, 2024 (local time). Two grueling races. Two very different strokes. Two Olympic records. Two gold medals.