Here are the top-10 men to watch at the 2015 Carlsbad 5000.
After a blazing U.S. Half Marathon Championship, Estrada seeks a record-setting time at the Carlsbad 5000.
She's rewritten the record books in track. Now she's hitting the roads.
The evolution of race medals, as seen through the World's Fastest 5K.
Last year's top American is dreaming big for this year's 5K.
She no longer lives near Carlsbad, but she's always there at the starting line.
There are thousands of 5K races across the United States every year, but these stand out from the rest.
Deena Kastor returns for the first time since setting the American 5K road record in 2002.
The track great shares his thoughts on a variety of topics.