Lukas Martens wins men's 400m freestyle at 2025 World Aquatics Championships | NBC Sports

Germany's Lukas Martens won the men's 400m freestyle final with a time of 3:42.25 at the 2025 World Aquatics Championships in Singapore. #NBCSports #Swimming #WorldAquatics » Subscribe to NBC Sports: https://www.youtube.com/nbcsports?sub_confirmation=1 » Watch Live Sports on Peacock: https://peacocktv.smart.link/v82e9dl56 NBC Sports Group serves sports fans 24/7 with premier live events, insightful studio shows, and...