TOKYO -- AP -- Katie Ledecky got her first gold medal of these Olympics, while Simone Biles pulled out of another event she came into the Games favored to win. Ledecky bounced back from losses in her first two events in Tokyo to win the inaugural 1,500-meter freestyle for women by more than 4 seconds.

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The victory came about after Ledecky finished fifth in the 200-meter freestyle for her worst finish ever at an Olympics. Biles withdrew from Thursday's all-around competition in gymnastics to focus on her mental well-being.

50 Most Popular Chain Restaurants in America

YouGov investigated the most popular dining brands in the country, and Stacker compiled the list to give readers context on the findings. Read on to look through America's vast and divergent variety of restaurants—maybe you'll even find a favorite or two.