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Whether a race, special group ride, training opportunity, or cycling-related community event, the 303 calendar showcases it all.  To have an event posted here please follow this link:  Event Policy Submission & Guidelines.

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Events for August 4, 2018

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XTERRA Aspen Valley – SOLD OUT

August 4

Aspen   After years of searching for the perfect mountain venue a private property owner, with a passion for water skiing and mountain biking, has created a one-of-kind venue.  The swim starts out on a single lap 1200m swim in the crystal clear waters of Kodiak Ski Lake.     Once out of the waterRead More

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Cliff Backyard Ultra

August 4
Wellington Lake, 21843 Stoney Pass Rd
Bailey, CO United States
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Bailey   Racing will begin Saturday, August 4, at precisely 6:02 am. Swimmers will complete a 1.5 mile loop on a triangular race course, every hour. Racing will continue every hour until no swimmer completes a loop. If we reach 6:02 pm on Sunday, August 5, without a winner, race directors will implement a swim-off.Read More

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Grant Ranch OWS

August 4
|Recurring Event (See all)

An event every month that begins at 12:00am on day First of the month, repeating until September 8, 2018

Grant Ranch, 7255 West Grant Ranch Boulevard
Lakewood, CO 80123 United States
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Lakewood   Tuesdays, May 22nd - Sept. 4th - 5:30AM - 7:00AM (Must start swimming by 6:15. Must be out of water by 6:50 AM) Thursdays, May 24th - Sept. 6th - 5:30AM - 7:00AM (Must start swimming by 6:15 Must be out of water by 6:50 AM) Saturdays, May 19th - Sept. 8th - 7:00AM - 9:30AMRead More

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IRONMAN Boulder 70.3

August 4
Boulder Reservoir Boulder, CO United States + Google Map

Boulder   Boulder 70.3 offers amazing views from start to finish, a bike course that is flat and fast and a run course all on dirt - easy on the knees.   Icing on the cake is that there are 30 slots for 70.3 World Championships in Nice, France.   Details here

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8:00 am

Splash, Mash, Dash

August 4 @ 8:00 am - 12:00 pm
Northridge Recreation Center, 8801 S. Broadway
Highlands Ranch, CO United States
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Highlands Ranch   The Splash Mash Dash Kids Triathlon is a non-timed race that is perfect for kiddos looking for a way to "TRI" the sport of Triathlon or tune-up their skills for a larger race. The race will offer kids a safe and fun environment for racing. All Splash Mash Dash Kids Triathlon participantsRead More

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