One of Colorados favourite trails meets one of its most glorious parks at our 5th annual Fallfest 1M, 5K, 10K, Half & Full Marathon! As courses wind southwest along Big Dry Creek Trail, the remarkable sight of Standley Lake with the Flatirons on the horizon will come into view, then the rustic nature to the northeast will be waiting to greet our marathon athletes. A course thats not too hilly & not too flat makes this the perfect choice for all abilities & preferences, plus along with its Endless Series sidekick in April Beat the Heat, All-Out Multicourse is proud to bring you the one and only groomed trail marathon course in the Denver Metro Area!
Marathons in Denver, Colorado
The American Heroes run started in 2010 by David Clark as a way of commemorating the tragic events of 9/11. The race started as a very small group of friends running for 9 hours and 11 minutes and has grown into a special run shared by thousands of runners from all over the world.
Come run Castle Rocks best trail race at the beautiful Phillip S Miller Park! The event will offer six races: a 50k ultramarathon, a marathon, a half marathon, a 10K, a 5K and a family adventure race. The event will highlight the soft surface trails that are a part of the towns largest ever park project. The race will begin near Castle Rocks state-of-the-art Miller Athletic Complex, a beautiful $30 million venue. The race course will showcase the trails in Phillip S Miller Park and the adjacent Ridgeline Open Space. Dont forget to take in the impressive views of the surrounding buttes and the scenic views of Castle Rock as the trail twists and winds over the flowing race course. If you have any energy left after your race, you can climb Challenge Hill, a 200-step staircase on the hillside near the finish line.
Join Denvers largest running weekend! Choose the marathon, half marathon, urban 10 miler or 5k and enjoy Denvers iconic landmarks.
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What you need to know about Marathons
The marathon is the benchmark for any runner. Its history stretches back to the Ancient Greeks, and it now includes all the world’s most iconic running races. At 26.2 miles, it’s a massive test of physical and mental resilience. If it’s a PB you’re after, you can choose a fast, flat city course, or else go for a more challenging trail run in one of the world’s most stunning locations.
Find local Marathon running races
Wherever you are based, you are sure to find a fantastic marathon event that’s local to you. If you are looking for marathon events close by, simply use our search to see which marathon’s near you are taking place this year and beyond.