Duathlon Course Details
| Run 1 (3.1mi / 5k) | Interactive Map | Printable PDF |
This out & back course is flat, fast & beautiful as you run across the Boulder Reservoir dam. There will be 2 opportunities to fuel up at or near each mile marker.
| Bike (17.3 mi/27.8k) | Interactive Map | Printable PDF |
Rolling hills at the base of the fabulous Flatirons! The views on this course can’t be beat! Athletes will leave the park through the main entrance, then head south for a right on Jay Rd. At about the 3 mile marker, you will vere right onto 28th St, then again onto N Foothills Hwy. At about the 7 mile point you will come to Neva Rd where you will make a right hand turn. After about 2 miles you will jog south & east onto Niwot Rd, then in another 2 miles you will turn right onto N 63rd St. After approximately 1.5 miles heading south you’ll approach the aid station… just in time to turn right onto the Diagonal Hwy, hit Jay Rd again for a short stretch & head back into the park the way you came & get set for T2.
NOTE: You will be cycling on roads that are open to traffic. Please stay right and stay on the shoulder. If you would need to leave the boundaries of the shoulder to pass… DON’T PASS!
| Run 2 (3.1mi / 5k) | Interactive Map | Printable PDF |
Same as the first… another opportunity to enjoy the view, fuel up & get ready for that slight downhill sprint to the finish!















