Dick's Sporting Goods at Flatiron Mall in Broomfield will have special registration between 10 a.m. and 2 p.m. on Sept. 22 and 23.

Dick's Sporting Goods at the Shops at Centerra in Loveland will have special registration during the same hours on Sept. 29 and 30.

Other registration walk-in sites will be open every day until Friday, Oct. 5 at noon. The exception is Runner's Roost on Colorado Boulevard where registration will remain open Friday Oct. 5 until close of business and Saturday, Oct. 6, until noon.

Northwest:

Boulder Running Company
2775 Pearl Street
Boulder
303-786-9255

Sportline
6543 Wadsworth Blvd.
Arvada
303-421-6751

Southwest:

Boulder Running Company
8116 W Bowles Ave.
Littleton
303-932-6000

Runner's Roost
7978 W. Alameda, Unit A
Lakewood
303-991-1851

South:

Runner's Roost
9994 Commons Street
Suite #230
Lone Tree
720-596-4384

Central:

Runner's Roost
1685 S. Colorado Blvd.
Denver
303-759-8455

East:

Runner's Roost
6554 S. Parker Rd (Parker & Arapahoe)
Aurora
303-766-3411