This race and everyone involved is fantastic! No stone is left unturned. Strong support for the front/elite of the pack, all the way through the back. Such a fun weekend in an amazing city!

Great race in one of the best places to run in the country!

The most poorly organized race I've ever been a part of. Half marathon and marathon runners started at the same time, which made the entire course until the half turnaround point horribly congested. The race st...

I was pretty disappointed with this event. It had great reviews and I wanted to support my local race scene but I did not enjoy this race. The corrals were so small it was absolutely impossible to get to the co...

Aid stations need work! Most of the stations where we only water. They need more carbohydrates that can be used immediately which could include fruit, regular sports drinks and energy gels.

Thank you Boulderthon! The 10K was fun and also challenging for me. It was a beautiful day. Everyone was helpful and friendly. Great swag! See you next year!

Really fun and beautiful run.

Loved it! Second year doing the half--such beautiful scenery and a wonderful course and volunteers! Can't wait until the next race!

Challenging course, day got hot and had too many layers. My worst marathon time but was still nice to run! PROS: Great views, organized pre-race day info, concise text message about where to go for parking was ...

PROS: This was my first marathon and I had a fantastic experience! The support from the running community was great. Event planning was well done: pre-race info was clear and bib pickup was easy. On the course,...