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Big River Running Company is proud to announce the five year anniversary of the Castlewood Cup. The race will be a true test of trail running with a 15k course that includes uphills, downhills, switchbacks and even a creek crossing. The course was designed by local trail running gurus Skip MacDowell and Blair Porter and they made sure to make things exciting for you!

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{{option.reg_closed_message}} {{ 'REG-OPEN-EARLY' | translate:option}} {{ 'REG-OPEN' | translate:option}} Early Registration for Life Time Members available on {{option.early_opening_date}}. Early Life Time Registration available. Enter your Life Time Fitness Membership ID to unlock this Early Registration. You can find this 9-digit # on the back of your Membership Card by the barcode. Life Time Membership ID:

No emails or URLs allowed

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Waiver of Liability: In consideration of your accepting this entry, I, the undersigned, intending to be legally bound, hereby, for myself, my heirs, executors and administrators, waive and release any and all claims for damages, demands, actions and causes of actions against Big River Running Company, LLC, Big River Race Management, LLC, Castlewood State Park, their affiliates, subsidiaries, officials, representatives, employees, successors and assigns for any and all injuries suffered by me in this event. I attest and verify that I am physically fit and have sufficiently trained for the competition of this run. Further, I hereby grant full permission for the free use of my name and/or any photographs, videotapes, motion pictures, recordings, or any other record of this event for any legitimate purpose.
Terms & Conditions: The terms and conditions of race registration is that all sales are final. There cannot be any changes, cancellations, refunds, transfers or deferrals once registration is complete. Races are inherently complicated to produce and include many logistics including ordering shirts, awards, beverages and other course items that account for participants as they register and cannot be undone.

I accept the $3 park fee, which will be added to my registration.

Yes (add $3.00) (Sold Out)

T-Shirt

If you have too many race shirts and would prefer not to get one, you can opt for a $10 gift card to one of the Big River stores instead. Either way, you can't go wrong!

Big River Running Company Gift Card - $10 value (Sold Out)

Extra-Small (Sold Out)

Small (Sold Out)

Medium (Sold Out)

Large (Sold Out)

X-Large (Sold Out)

2X-Large (Sold Out)

What is your estimated pace per mile?

If unsure of trail pace add 1:30 per mile to what you would run on the road.

Would you like to receive info from Big River on events and promotions?

Yes

Would you like to receive the Big River Running Company newsletter?

Newsletter contains information on upcoming in-store events, educational clinics, new products, training and injury advice and more

Yes

Wave

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Shoeman Water Projects collects donated new and used shoes and exports the shoes to street vendors in places like Kenya, Haiti and South America, providing affordable shoes and jobs for those communities. The funds are used for well drilling rigs, water purification systems and training programs to bring clean, fresh water to those who thirst. The work reduces landfill waste, puts shoes on bare feet, and provides clean water in impoverished villages to facilitate better health, hygiene, farming and livelihoods throughout the world. Just $25 can provide water to one person for an entire year.

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