Colorado Runner - Colorado's running news, events and results source

Running requires intense physical effort day after day. Many athletes push through fatigue without realizing the mental toll it takes on their minds. Pushing past your limits can lead to severe exhaustion.

The 8th Annual Mile High Mile, presented by Sara Vaughn at Liv Sotheby’s Realty, delivered a night of record-breaking performances at Boulder High School on Friday, May 23. Among the hundreds of runners who took to the track, three athletes rewrote the Colorado record books.

For the first time in the history of a race that began in 1979, the Bolder Boulder was forced to turn away potential customers.