Join us for another amazing year!
Georgetown to Idaho Springs Half Marathon is a Colorado Runner’s Must-Do event. This iconic Half Marathon is one of the most pleasurable races in the western US. The point-to-point course is a scenic and gently rolling mountain course that winds down the Clear Creek Valley -- starting at an elevation of 8,500ft. at Georgetown Lake and ending at an elevation of 7,500ft. in Idaho Springs, with one hill of a finish!
This event is hosted by the Clear Creek Booster Club, and it is planned by parent volunteers. Proceeds from the GTIS Half Marathon go directly to supporting middle school and high school students in Clear Creek County.
This is Colorado at its best!
"By far one of the most beautiful runs I have ever done" - participant
Registration fees
Prices are inclusive of mandatory charges, items, and fees
Half Marathon Closed
Online registration closed-
- Online registration closed
Event Schedule
Start Time
We will once again host a rolling wave start, releasing small groups about every 15 minutes. This best suits the path in the early part of the course. YOU get to select your start time during registration (once a wave reaches capacity, it will no longer be available).
7:00 a.m. First wave start
7:15 a.m. Second wave start
...this will continue every 15 minutes until 8:30AM. Wave capacities are limited. Encourage friends and family to sign up along with you so that you can all start together.
The course will close at 12PM, please keep this in mind when selecting your start wave time.
Event Details
Run Perks
Custom finisher medal, great shirt, fresh mountain air, beautiful scenery, and a fun post-event celebration. (Tshirts guaranteed to those registered before 12noon on July 26th)
Location
Race start is in Georgetown, next to Georgetown Lake on the frontage road and finishes in Idaho Springs. COURSE MAP
PARKING & SHUTTLES
The most up to date information for parking and shuttles will be found on the race info page of the event website (https://www.gtishalf.com).
The first shuttle(s) will leave Idaho Springs around 6/6:15AM. Please plan accordingly. More details about parking and shuttles will be forthcoming as the event gets closer!
Shuttles to the start line are for participants ONLY, no spectators.
**There is NOT shuttle service back to Georgetown post-event.
Advance packet pickups:
Runners Roost Lakewood (7978 W Alameda Ave A, Lakewood, CO 80226)
- Saturday, August 3rd, from 10am-5pm
- Sunday, August 4th, from 11am-5pm
- Thursday, August 8th, from 3pm-7pm
Bib Pickup at the Start Line in Georgetown on race morning
- starting at 6:30am and continuing until the start of the final wave.
Learn more at www.gtishalf.com
Colorado Mountain Half Series
We all love a Colorado original and we certainly love the beauty and tranquility of our rocky mountains. Five wonderful events are now part of the Colorado Mountain Half Series, join us for 3, 4, or all 5 events and be part of this fun series of events. Earn points towards series awards, collect some fun swag and best of all enjoy some great discounts on registration fees!
Events include: Estes Park Half Marathon, Georgetown to Idaho Springs, Mt Sneffels Half Marathon, NedNed Half, and the Lead King Loop 25K.
Learn more at Colorado Mountain Half Series Website
Contact information
- Event contact
- HAL Sports
- info@halsports.net
- Website
- Visit website
