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The race is limited to the first 1,000 runners.

Greenland Trail 50K
$80 through Dec 31
$85 Jan 1 – March 31
$90 after March 31
Greenland Trail 25K
$55 through Dec 31
$60 Jan 1 – March 31
$65 after March 31
Greenland Trail 8M
through Dec 31
$45 Jan 1 – March 31
$50 after March 31

Register2Register On-Line:
Register on-line by clicking here. Online registrations closes at midnight on April 29, 2015 or when the race reaches the 1,000 runner limit.

Register in person at the following Boulder Running Company locations:
2775 Pearl Street
Littleton, 8116 W. Bowles Avenue
Colorado Springs, 3659 Austin Bluffs Parkway

Elite Athletes:
Please click here for our competitive entry info.

Wish to Volunteer?
All volunteers get a free entry into another event produced by Colorado Runner Events. Please click here to volunteer.

Avoid The Rush!
Pre-race Packet Pickup and Registration
Thursday, April 30, 2015

5:00 PM to 7:00 PM
Boulder Running Company
3659 Austin Bluffs Parkway, Colorado Springs, CO 80918

Friday, May 1, 2015
5:00 PM to 7:00 PM
Boulder Running Company
2500 E 1st Ave, Denver, CO 80206

Packet Pickup and Event Timeline:
6:00 AM – Packet pickup at race site begins.
7:00 AM – 50K races start
7:30 AM – 25K race start
8:00 AM – 8M race start
3:00 PM – Finish line closes

Cancellation Policy
Entry fees are non-refundable; race numbers and entries cannot be transferred to another year or person. No exceptions. This means once we have received your entry, you will not receive a refund if you cannot participate. Please follow us on Twitter and Facebook to stay up to date if there is inclement weather.