The gritty 31-year-old is back to see if she can improve upon her 2011 runner-up finish.
Foreign agents cannot work in the country for at least six months while investigations are taking place.
The 33-year-old from Bend will be making his 50-mile debut.
If you're visiting Beantown, here are five must-run routes in and around the city:
The company's aim is to broaden the scope of endurance sports event coverage while providing race directors a new level of safety.
Keep these pointers in mind when you make your next purchase.
Two-time defending champions Chris Mocko and Elle Pishny finish third and second, respectively.
Men don't like to talk about eating disorders, but that doesn't mean it's an issue that shouldn't be discussed.
The tempo run is the most misunderstood type of workout. Let's get it straight.
Lasse Viren loved this track workout. You should learn to like it too.