2026 Yellowknife Overlander Marathon - Aug 23

2026 Yellowknife Overlander Marathon - Aug 23 Countdown

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Race Information

Race2026 Yellowknife Overlander Marathon - Aug 23
CityYellowknife
Date2026-08-23 at 09:00
Field Size~10 runners
Time LimitNo time limit
TimezoneAmerica/Yellowknife
Official SiteYellowknife Multisport Club
RegistrationRegister

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Race Day Weather

Average Temperature13.5°C / 56°F
Humidity72%
Wind24.8 km/h
Rain Chance34%
Typical ConditionsCool, dry sub-arctic morning with low northern sun and 16+ hours of daylight

What to Prepare: A late-August Yellowknife start is cool and dry (around 12-14°C / 54-57°F at the 9 AM gun, daytime highs near 17-19°C / 63-66°F). Bring a throwaway layer for the corral and sunglasses for the long, low sun off the lakes.

Based on historical averages for race week. Use our Weather Score Calculator and What to Wear Guide for personalized advice.

Wind Impact on Race Day

Wind at 24.8 km/h can affect your marathon pace by 5-15 seconds per kilometer. Headwinds slow you down exponentially — a 20 km/h wind costs more than twice a 10 km/h wind.

Calculate your wind-adjusted pace →

Race-Week Climate

Based on 20 years of race-week weather (2005-2024), MERRA-2 reanalysis

Cooler Typical Warmer
Temperature 9.3°C 13.6°C 17.9°C
Dew point 3.5°C 8.4°C 12.4°C
Wet-day chance: 34% Runnability: 74/100

Data: NASA POWER (MERRA-2 reanalysis), NASA Langley Research Center

Course Profile

Course TypeMulti-loop figure-eight
Elevation Gain300m
TerrainMostly paved road with some trail sections
ProfileA 10.55 km figure-eight repeated to make the full 42.195 km, winding from the Frame Lake Trail down to historic Old Town and around Latham Island. Genuinely rolling rather than flat: a gentle climb over Tin Can Hill plus two more pulls back to the start each lap. Uncertified course, so it is NOT a Boston qualifier. Open first-come entry, no lottery.

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Frequently Asked Questions

How do you register for the Yellowknife Overlander Marathon?

Entry is open, first-come through the Yellowknife Multisport Club via the Zone4.ca platform — there is no lottery and no qualifying time. Online registration closes the Wednesday before race day (around Aug 19, 2026), with no same-day sign-ups. The full marathon is one of several distances (alongside a quarter, half, and three-quarter marathon) staged the same morning out of Overlander Sports in downtown Yellowknife.

How hilly is the Yellowknife marathon course and how much elevation gain is there?

The course is rolling, not flat. It runs a 10.55 km figure-eight that the full-marathon field covers four times (the figure-eight twice), with a gentle climb over Tin Can Hill and two more short pulls back to the start on each lap. Organizers describe it as having “no huge hills,” but the repeated climbs add up — a realistic estimate is roughly 250-350 m of total gain over the marathon. No official elevation figure is published.

What is the Yellowknife Overlander Marathon course like?

It is a scenic urban-and-trail figure-eight that “showcases all of Yellowknife.” You start on the Frame Lake Trail, drop down to the colourful houseboats and floatplanes of Old Town and around Latham Island, then loop the Airport Road area past landmarks like the JTFN building and ceremonial circle. The surface is mostly paved road with some trail. Because it is run on city streets and trails, expect a small, low-key community feel rather than big crowds.

How big is the field and how hard is the race?

The full marathon is a tiny field — typically only about six to fourteen finishers (14 in 2013, 8 in 2021, 6 in 2022; no full results published for 2023-2025). That makes it one of the most intimate marathons in North America: you may run long stretches alone or with one or two others. The difficulty comes from the multi-loop rolling terrain and the solitude, not from crowds or a strict cutoff.

Is the Yellowknife marathon a Boston qualifier?

No. The Overlander course is a multiple-loop, uncertified route, so finish times cannot be used for Boston Marathon qualification (findmymarathon lists it as “No” for BQ). If a Boston-qualifying time is your goal, choose a certified point-to-point or single-loop race instead and treat Yellowknife as a bucket-list destination run.

What should I wear for late-August weather in Yellowknife?

Dress for a cool, dry sub-arctic morning: roughly 12-14°C (54-57°F) at the 9 AM start, warming to highs near 17-19°C (63-66°F). Humidity is low and rain odds are around 20%. A singlet or short sleeves plus a throwaway layer for the corral works well, and bring sunglasses and sunscreen — in late August Yellowknife still gets about 16 hours of daylight and the low sun glares off the lakes.

Is there a time limit, and are there aid stations?

There is no strictly published time limit — this is a small club event, so plan to be self-reliant and confirm details with the organizer. The club provides water and food stations on the course plus washrooms at Overlander Sports. With a tiny field and a remote setting, carrying your own gels and a phone is wise, especially on the quieter trail sections.

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