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Dirty Thirty Ultra XC Mountain Bike Race (15 or 30 mile)

On or Before March 30th, $40
After March 30th, $45

(+$2 for online registration fee for all online/credit card registrations)

All entries include a T-shirt. Commemorative beverage glass to the first 150 who register. Sizes guaranteed in an event shirt if you register before April 6th. After April 6, sizes are first come-first served until we run out of event shirts. If a size is shown in the menu when you register, it is still available. Those who register late or once we are out of event shirts will still receive a shirt, however it will be a Mountain Goat logo tee. Please register early. Shirts run true to size.

A portion of the proceeds from this event will benefit SORBA Woodstock for the continued maintanence of the Blankets Creek and Rope Mill Park Trails. The race is a joint effort between Mountain Goat Adventures LLC and SORBA Woodstock.


On-Line Registration

2019 Blankets Creek Dirty 30 Accident Waiver (Bring to Race)

Registered Competitor List

Online registration will close at 5 pm on Friday, April 19th. If you wish to register after that time, you will need to do so on-site on Saturday morning before the race from 9 to 11:30 am.

2019 Mail In Registration Form

Please make checks payable to MOUNTAIN GOAT ADVENTURES and mail to:

Mountain Goat Adventures
1060 Transart Parkway
Canton, GA 30114

Please contact if you encounter any problems while trying to register, and we will try to help you out.

Cancellations and Transfers

We understand that injuries happen, you got sick or life was just too chaotic to train for one of our events. No refunds will be issued, however you may transfer your entry to another racer in the same event without penalty until April 15, 2019. You are responsible for finding a person interested in buying your entry, as well as working out payment with that person. Entries do not transfer to other events nor do they transfer year to year. If you would like to sell your entry to another racer, please contact with the name and email of the person you wish to transfer your entry to.

No refunds will be given in the event of an act of God that requires cancellation of the race for the saftey of participants. Once the race has started, no refunds will be given due to delayed start or early conclusion of the race.