Are you looking to Qualify for Boston or run a Marathon PR?  If so, this Race is for you!

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Note:  Your Credit Card Charges will list "Robert S. Kennedy Oyster" New Hampshire or Oyster River Running Company, Durham, NH as the merchant name!

Early Registration: Opens 21 February 2018!  Only for - Residents of Wyoming and South Dakota, 50sub4 Marathon Club Members, Six03 Endurance Members, and Winner's Circle Running Club Members  

General Registration: Opens 1 March 2018. For all other runners

Race Director:  Bob Kennedy, Oyster River Running Company, Durham, New Hampshire. Please contact the Race Director Bob Kennedy at [email protected] if you have any questions.

Date: 23 September 2018 Sunday

Start: 6:45 am (Sunrise) at Cement Ridge, WY at 6,624 ft elevation.

Finish: In front of Frank R. Brady Park, 510 N Meier St, Spearfish, SD at 3,654 ft elevation.

Course: Point to Point, USA Track & Field Certified (WY16001BK), Boston Qualifier. Course Sanctioned by USA Track & Field (in process). Highest Elevation 6,624 feet, Lowest Elevation 3,654 feet, Net Drop 2,970 feet. Total Gain 54 feet, Average Grade 2.15%. See Official USAT&F Map and Elevation Change Graph below

Description:  Considered one of the fastest and most beautiful Marathon Courses on Planet Earth! 

The best the Black Hills of Wyoming and South Dakota have to offer. Almost entirely downhill except for one tough hill from mile 2.00 to 2.56 miles with 169 ft gain. First 12 miles from Cement Ridge to Spearfish Canyon Falls are on very runnable improved gravel roads, covers scenic mountain meadows, valleys and canyons, and drops 1,606 ft. You will pass the winter film site for “Dances with Wolves” at mile 9.35! The remaining 14 miles is hardtop and descends Spearfish Canyon Hwy (Rt 14A, a National Scenic Byway) to Spearfish, a route shared by the Leading Ladies Marathon and a drop of another 1,364 ft. This extremely fast course will be 1 of only 2 USATF Certified Courses (=Boston Qualifying Course) in Wyoming and it counts for either Wyoming or South Dakota Your Choice! Since 2016 when this race started, 42.4% of the runners have achieved Boston Qualifying Times!  Course consultant: Elaine Doll-Dunn, Race Director of the Leading Ladies Marathon.  

Race Participant Limit: We are restricting the race to 50 runners during the initial registration period.  Additional Participants may be added from the Waitlist. 

Timing & Race Time Limit: This will be a gun-timed event, no chip time. Runners are expected to maintain a 13:45 pace or faster and finish the race in 6 hours or less.  

Travel:   Plan to stay in Spearfish, SD and not in Sundance, WY.  Rapid City, South Dakota is just over an hour away from Spearfish, where the race will end.  Denver is about 6 hours, Sioux Falls is about 5.5 hours. 

Travel to Start:   We will provide transportation to the Start from Spearfish for those runners needing a ride to the Start. Sunday, Sept 23, 5:15 am SHARP departure from Brady Memorial Park at 510 N Meier Avenue in Spearfish at the Finish Line.    There are clean public rest rooms at Brady Park.  Please arrive well before 5:15 to use the rest rooms and to help us sort out the car-pools.  It will take about an hour to get to the start.  

Sponsors: Killian’s Tavern & Steakhouse, and Crow Peak Brewing Co.

Race Swag: Sterling Silver Medallion to all finishers, quality cotton Long-Sleeve T, and Age Group Awards for top 3 in each gender/age group at 5-year intervals from 25 and above. 1st Place Awards to Top Male and Top Female - Note: Male and Female winners are also eligible for Age Group Awards.  Also, there will be 1st Place Awards to Top Male and Top Female Race Walkers.

Additional Race Details & Updates: We will keep you posted through emails as needed through race morning.  VERT IMPORTANT - Be sure your email server recognizes Bob Kennedy's email address:  [email protected]

Participants of the 2017 Sundance to Spearfish Marathon at the Start at Cement Ridge Fire Lookout Tower at the top of the Black Hills!

Registration Cap has been exceeded.

Registration  is now Closed.

Please do not submit any of the information below.


  • Marathon

In consideration of accepting an entry into the Sundance to Spearfish Marathon, I the undersigned, intending to be legally bound, hereby, for myself, my heirs, executors and administrators, waive and release any and all rights and claims for damages I may have against Bob Kennedy, Race Director and all sponsors, the National Forest Service, the people of the States of Wyoming and/or South Dakota, their officers, agents, and employees, for all injuries suffered by me in said event. I attest and verify that I am physically fit and have sufficiently trained for the completion of this event and that my physical condition has been verified by a licensed Medical Doctor. Further, I hereby grant permission to any of the foregoing to use any photographs, videotapes, motion pictures, recordings, or any other record of this event for any purpose.

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