5th Annual Racing Underground
1.2 Mile & 2.4 Mile
Open Water Swim

Put this one on your calendars! Racing Underground will be hosting our fifth annual long-course open water swim at the Boulder Reservoir on Saturday August 31st.

Swimmers can choose from 1.2 mile and 2.4 mile options. There will be a mass start at 7:00am, however the start line will be open until 7:15am for those swimmers who would rather not start with a group. Swimmers will have until 9:30am to complete their swim.

This swim can be as competitive or non-competitive as you'd like. All participants will be chip-timed (from their individual start to their individual finish), and results will be posted throughout the morning, as well as on our website on the afternoon of the event.

Food and music will follow the swim. Awards will not be presented for finish places - instead we will award sponsor merchandise to random finishers as they come out of the water. Everyone is eligible for these prizes!!!

Pre-registration for either distance is just $20 through August 15th and $25 thereafter. Online registration closes at 5pm on Friday August 31st. Race-day registration is $30. Your entry fee includes chip timing, park entry, a safe course, good food, and a chance to win some great merchandise prizes.

Race Day Registration and pre-registered check-in opens at 6:00am under the trees at the north end of the swim beach. Please arrive with enough time to check in and pick up your timing chip. A line tends to form around 6:40, when all of the late-arriving athletes show up. No swim starts will be allowed after 7:15am.

COURSE: The swim course will be a large rectangle, which you will swim in a counter-clockwise direction. The course will be marked with large 5' diameter buoys. Orange buoys will mark the straight-aways, and lime green buoys will mark the turns. One lap of the course is 1.2 miles. You may swim 1 or 2 laps. You may switch your swim distance, however you do need to let us know that you have switched so we can list you correctly in the results. You will not come out of the water between laps - the 2.4 mile swim is a continuous swim. CLICK HERE FOR A COURSE MAP

Swim Course closes at 9:30am.
All swimmers must be out of the water by 9:30am.
No one will be allowed to start a second lap after 8:30am

DIRECTIONS & PARK ENTRY: The Boulder Reservoir is located on 51st Street in Boulder. 51st Street is located just west of the intersection of the Diagonal Highway and Jay Road. Turn North on 51st and drive approximately 1 mile. The Reservoir entrance will be on your right. Participants will be admitted to the reservoir free of charge. Spectators will still need to pay the standard reservoir gate fee. Spectators NEED to pay the required fees, as they will be counting at the gate, and we may be forced to take payments at the gate again in the future if this is abused.

- 2012 RESULTS -

- 2011 RESULTS -

- 2010 RESULTS -

- 2009 RESULTS -