Limitless

Keep Your Eye on the Balls to Become a Better Athlete

Pro sports teams are using a new video game that claims to sharpen cognitive skills. Some scientists are skeptical.

For Swimmers With Ice Water in Their Veins, an Event to Match

The sport of ice swimming, done in water about 41 degrees or less, is attracting interest in spite of its dangers, or perhaps because of them.

Mind Over Body: Playing in the N.F.L. at 38

Vikings cornerback Terence Newman is a step slower, so he tries to outsmart opponents to stay on top of his game.

On Pro Basketball

Russell Westbrook: The Triple-Double Machine

Westbrook, the Thunder guard, is dominating opponents this season with double-digit averages in points, rebounds and assists.

For Deaf Tennis Player, Sound Is No Barrier

Lee Duck-hee, 18, of South Korea, is ranked 143rd in the world in a sport in which hearing the ball is considered crucial.

Still Running at 119? Not So Fast

Dharam Pal Singh, a farmer from India, credits herbal chutney and fruit for his sustained fitness. Sports officials do not believe his age.

No One Is Looking at This Headline

You’re looking at Phil Heath, the six-time Mr. Olympia, who eats a lot of tilapia and works out in a strip-mall gym.

Ultra Runner Karl Meltzer Sets Appalachian Trail Record, Fueled by Beer and Candy

He covered the 2,190 miles in less than 46 days, shaving about 10 hours off the previous mark.

From the Slowest Swim to the Fastest Bike, Gold Medal Racing Speeds on the Same Scale

The speeds of dozens of races across Olympic sports.

Usain Bolt and the Fastest Men in the World Since 1896 – on the Same Track

Every Olympic medalist in the 100-meter sprint – on the same track.