Which is harder: a 5K or a marathon? Ask a runner who specializes in either, and they’ll likely say it’s the other one. The truth is, both these distances can be seriously challenging—and ...

For a list of the best fighters regardless of weight class, check ESPN's pound-for-pound rankings. WBO: Oleksandr Usyk* IBF: Daniel Dubois WBA: Oleksandr Usyk** WBC: Oleksandr Usyk*** *Joseph ...

If you’ve ever run a race, or seen people training for one, you’ve likely come across them: sneakers with sky-high cushioning that look like they could spring you into outer space. And to some ...