For the past three years, my family has upheld the same end-of-summer tradition: On a Saturday in mid-August, we drive four hours north of San Francisco until we hit Eureka. On Sunday, we run the ...

Diane Nukuri-Johnson trains in Iowa City, Iowa. A decade ago, Running Times published a story on progression runs, calling them a "Kenyan secret everyone can use." Today, they're no longer a secret; ...