Inaugural grand prix tour includes six stops; total Tour prize purse exceeds $90,000.
The reigning London and New York City Marathon champion headlines a power-packed lineup.
There are eight men with sub-2:06 credentials, 12 women with sub-2:24 marks.
See the top 25 men's and women's results from the 13.1-mile race in Houston.
Canadian Rob Watson and Brit Jess Peterson won the half marathon titles.
The 38-year old from San Diego captured his 22nd national title.
The 38-year-old Keflezighi made his winning move at 15K.
The Boulder resident is hoping to make a big breakthrough this weekend.
We caught up with the three-time Olympian ahead of last weekend's U.S. Half Marathon Championships.
Meg Menzies was struck and killed by a drunk driver while on a run Monday morning.