The 25-year old took over 13 minutes off her 26.2-mile personal best at last weekend's ASICS L.A. Marathon.
Chris Solinsky will make his marathon debut this year, with the ultimate goal of making the 2016 U.S. Olympic team.
The 40-year-old juggles family life with a full-time job and a full-time running habit.
We caught up with the newly minted national cross country champion.
The 25-year-old came out of nowhere to win one of the country's most iconic ultra faces last year.
The Arizona State junior is on her way to becoming one of the most versatile runners in NCAA history.
The 3:46 miler retired from professional running this month and now turns to triathlon.
The 27-year-old trail runner from Colorado won the Leadville 100 last year.
We caught up with the three-time Olympian ahead of last weekend's U.S. Half Marathon Championships.
The 29-year-old talks injuries, 2014 plans and shares some advice for aspiring professional runners.