After a 7th-place showing, Ritzenhein looks ahead with renewed confidence.
See how the top Americans are feeling just a couple days out.
The Michigan native wants to do well in Boston, but more importantly, he wants to stay healthy.
Dathan Ritzenhein has his reasons for running. What are yours?
The pair leads a strong contingent of runners that will compete in the race's 119th edition on April 20.
We asked an elite runner, a nutritionist and a coach how they fuel for 26.2.
The 31-year-old is healthy again and gearing up for the Rock 'n' Roll Philadelphia Half Marathon on September 21.
Try this workout from coach Brad Hudson to boost your fitness.
Kenyan Moses Mosop, second at Boston in 2011, also announces withdrawal from race.