Saturday, Jan 11, 2020 @ 10:15 AM

Frosty Bottom Marathon & Half Marathon

Kincaid Park

Anchorage, AK 1/2 Marathon, Marathon

This Event Took Place Sat. Jan 11, 2020


After a one-year hiatus due to the pandemic, the 2022 Frosty Bottom Marathon & Half Marathon will be held on January 15, 2022!
Registration will open Nov. 15.
See details below.

Frosty Bottom Marathon & Half Marathon Summary

Held simultaneously with the Frosty Bottom bike race, but with some separate elements of organization, the Frosty Bottom MARATHON travels point-to-point from Kincaid Park to the Hillside Trailhead (adjacent Abbott Road) and is capped at 100 entrants.
In 2018, the footrace was expanded to a marathon (26 miles) from 22 miles.
In 2020, The Frosty Bottom HALF MARATHON was added. It travels point-to-point from Kincaid Park to the Northern Lights Bridge (near Goose Lake Park) and is capped at 100 entrants.


The MARATHON course was simplified in 2020 by eliminating the two add-on loops of the previous two years in Bicentennial Park.
It now starts outside the Kincaid Chalet and then follows the Raspberry Road multi-use path to Raspberry Trailhead. From there, runners take the Middle Earth singletrack trail to where it intersects the Coastal Trail a mile from Kincaid Chalet (this is the most adventurous part of the route). Then the route follows the bike course on the Coastal Trail, Chester Creek Trail, Tour of Anchorage trail and Hillside multi-use trail to the finish at Hillside Trailhead adjacent to Abbott Road. The marathon course includes 1,371 feet of elevation gain and measures 26 miles.
Here is a Garmin interactive map of the marathon course:

The HALF MARATHON course starts outside Kincaid Chalet and takes the Coastal Trail for about 9 miles. Then it turns right (east) on the Chester Creek Trail about 4 miles to the finish just across the Northern Lights Bridge. A short access trail then leads to the Goose Lake Park parking lot.
The distance measures about 13 miles and includes 281 feet of elevation gain.
Here is a Garmin interactive map of the half marathon course:.

Course Markings

For the MARATHON, the Raspberry Road multi-use and Middle Earth singletrack will have signs and pin flags as needed. Once the course joins the coastal trail, runners will travel the Coastal Trail for 8 miles to Westchester Lagoon (there will not be course markers). From there they will follow bike race markers the rest of the way.
The HALF MARATHON runners will travel the Coastal Trail for 9 miles to Westchester Lagoon (there will not be course markers). From there they will follow bike race markers the rest of the way.

Aid Stations

Runners should carry what they need for their full distance. However, The MARATHON will have aid stations at Airport Park off E. Northern Lights Blvd. at mile 10.5, at the Northern Lights Bridge (near Goose Lake Park) at mile 17.3 and at the Hillside Trailhead finish line.
The HALF MARATHON will have an aid station at Mile 6.3 at Airport Park off E. Northern Lights Blvd. and at the Northern Lights Bridge finish line (near Goose Lake Park).
All aid stations will have water, sports drink and sustenance (sugary and salty snacks). Snacks will be self-serve in Dixie cups or single-serve packages.


This is a winter race! Be prepared for inclement weather, sub-zero temperatures and wind (particularly on the Coastal Trail).
Dress in layers appropriate for the conditions. Recommended items include a windbreaker, neck gaiter (Buff), chemical hand and foot warmers, and a water bottle or Camelbak (test your hydration system in the cold to make sure it doesn't freeze up).
Runners in both races should give right-of-way to bikers who are traveling much faster than foot travelers, as well as recreational skijorers, skiers and other trail users.
Be alert for wildlife and consider carrying bear spray for potential moose encounters. Buddy up and bushwhack around wildlife if necessary.
Headphones are allowed but not advisable (because they can impact your awareness of your surroundings).
We love dogs but they are not allowed for this race, sorry.

Start time

The Frosty Bottom MARATHON & HALF MARATHON foot races will start simultaneously outside the Kincaid Chalet at 10 a.m. Saturday, Jan. 15.
The start time will follow the Long Frosty Bottom bike start (9:30 a.m.) and Short Frosty Bottom bike start (9:40 a.m.)

Bib pickup

PRE-RACE BIB PICKUP will be from 5-7 p.m. Thursday, Jan. 13 at Chain Reaction Cycles, 1148 Huffman Road. Face coverings are REQUIRED inside the shop. You may pick up bibs for friends.
RACE-DAY BIB PICKUP will be from 8:30-9:45 a.m. Saturday, Jan. 15 OUTSIDE the Kincaid Chalet in the parking area nearest the multi-use trail.

Registration and entry fees

Registration at Ultrasignup will open Monday, Nov. 15 at 9 a.m. and close on Friday, Jan. 14 at 7 p.m.
The registration fee is $55 for either the MARATHON or HALF MARATHON.
Race-day registration is NOT possible.
Registrations are non-transferable.
Registration fees are non-refundable. The only exception is for registrants who are unable to attend due to COVID-19 symptoms or a positive COVID-19 test; in those instances a deferral or refund will be granted.
MARATHON entrants under age 18 must be experienced and approved by the race director.

COVID-19 Policies

Face coverings are required at bib pickup inside Chain Reaction Cycles on Jan. 13.
Face coverings are optional during the event and are encouraged when social distancing is not possible or practical.
In the week before the event, anyone who has COVID-19 symptoms, has tested positive for COVID-19 or is a close contact of someone who tested positive, may not attend and will be granted either a deferral to 2022 or refund.
All participants are strongly encouraged but not required to be vaccinated.

Time Cut-Off/Dropping Out

The MARATHON time cut-off to be included in official results is 6 hours, 45 minutes (4:45 p.m.).
If anyone is unable to make the cutoff or needs to drop out for any reason, they must contact RD Matias Saari at 907-529-4178 or notify volunteers at an aid station.
The HALF MARATHON has no time cut-off but participants should expect to finish within three hours.

Drop Bags

Race organizers will transport one bag per person (for either race) from the start to the finish. Bags must be labeled and secured.
Runners are responsible for their own post-race transportation if they need to return to Kincaid Park.


For the start, park either at the Chalet lot or at the large stadium lot.
There is adequate parking at Goose Lake Park for the Half Marathon finish. There is limited parking at Hillside Trailhead for the marathon finish; plan to carpool or arrange for a quick pick-up from a supporter. There is no shuttle transportation back to Kincaid from either finish line.
Anyone looking to carpool from Kincaid (either before or after the race) can post a message on the Frosty Bottom Marathon Facebook event page at:

Awards and Post-Race Party

There will be a $100 cash prize, plus free entry for 2023, for both the men's and women's MARATHON and HALF MARATHON winners!
The other podium winners (2nd and 3rd places for each gender) will receive a gift certificate or other prize.
All entrants will receive a Frosty Bottom beanie hat.
Awards will be given at the finish in 2022; the awards party at Chain Reaction has been canceled due to the pandemic.


The running races will be manually timed. 2022 results will be posted at Ultrasignup within 24 hours of the event.
For results from 2018-2020, see the upper right box at the top of this Ultrasignup page.
For Frosty Bottom RESULTS FROM 2008-2020, scroll to the bottom of this page:
A list of past champions and running results from 2008-20 will be posted at the finish.

For more info

For more information, contact Race Director Matias Saari at or 907-529-4178.
To keep up on messages posted at the Frosty Bottom FACEBOOK EVENTS page, go to

Local time: 5:10 AM


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