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    Boulder Rez Marathon, 3/4 Marathon, Half Marathon, 10K & Relay



    The Boulder Rez Marathon is quickly becoming a Boulder classic! This isn’t just another run around the lake. August temperatures will create the perfect race atmosphere. BBSC will offer a Marathon, ¾ Marathon, Half Marathon, 10K and 5K, guaranteeing the perfect distance for you! This popular course will take runners around the Boulder Reservoir on some stunning single tracks, packed-dirt trails, and paved park roads at the start and finish line. After your race enjoy the lively post-race atmosphere with music, awards, beer, food and more!

    "I wanted to thank you for one of the best marathon events I have ever participated in. I loved the course, the event, the people, everything.  I've done more than 30 marathons and I can honestly say, you guys have erased all bad memories of the previous organization, and I will do this one again!"      

                                                                                                         - 2015 Participant

    Event Schedule

    6:00am - 7:15am: Packet Pick Up & Registration

    7:15am: Start of Marathon

    7:20am: Start of the 3/4 Marathon

    7:25am: Start of the Half Marathon

    7:30am: Start of 10K

    8:45am: 10K Overall Awards

    9:30am*: Half Marathon Awards

    10:30am*: 3/4 Marathon Awards

    11:30am*: Full Marathon Awards

    2:00pm: Course Closes


    *Award times are approximate

    Boulder Rez Marathon, 3/4 Marathon, Half Marathon, 10K & Relay