2026 Yukon River Trail Marathon - Aug 2 Countdown

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Race Information

Race	2026 Yukon River Trail Marathon - Aug 2
City	Whitehorse
Date	2026-08-02 at 08:30
Field Size	~52 runners
Time Limit	7 hours
Cutoff pace	9:57/km
Timezone	America/Whitehorse
Official Site	Yukon River Trail Marathon Society
Registration	Register · 70 CAD

Race Day Weather

Average Temperature	11.1°C / 52°F
Humidity	78%
Wind	11.7 km/h
Rain Chance	49%
Typical Conditions	Early-August Yukon summer mornings are cool and bright, around 10-13C at the 8:30am start and climbing toward the high teens or low 20s by midday under a sun that barely sets. Showers are possible off the river.

What to Prepare: Dress for a cool start that warms fast in the long northern daylight. Trail shoes with grip, a light layer you can stash, and bug protection for the forested single-track are smart. Carry your own fluids between aid stations.

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 11.7 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	7.7°C	10.6°C	15.7°C
Dew point	3.9°C	6.9°C	10.4°C

Wet-day chance: 49% Runnability: 77/100

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

Course Profile

Course Type	Trail loop marathon
Elevation Gain	897m
Terrain	Trail (single-track with 3.5km paved path at start and finish)
Profile	A demanding loop of four legs (8-13K each) with roughly +897m of total climb and matching descent; relentless rolling single-track with no flat recovery, finishing back at Rotary Peace Park.

Prepare for 2026 Yukon River Trail Marathon - Aug 2

Use our free training tools to get race-ready:

Running Pace Calculator — Min/km, Finish Time & Pace Chart

Free running pace calculator for 5K, 10K, half marathon, and marathon. Get min/km or min/mile, your ...

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Free Pace Band Generator — Printable Race Day Wristband

Free printable pace band for marathon, half marathon, or custom distance. Choose even, negative, or ...

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Marathon Wake-Up Time Calculator — Race Morning Timeline

7 AM race, wake at 3:45 AM? Enter the gun time; we work backward through meal, gear, bathroom, warm-...

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Elevation Gain/Loss Impact Calculator

How much will hills slow you down? Enter elevation gain, loss, and distance to see adjusted pace, di...

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Grade Adjusted Pace (GAP) Calculator — Hills & Strava

Convert uphill or downhill running pace to flat-equivalent GAP in one click. Free grade adjusted pac...

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Marathon Predictor — 5K, 10K & Half Marathon Race Predictor

Free marathon predictor — convert your 5K, 10K, or half marathon time into race-day estimates from R...

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Frequently Asked Questions

When is the 2026 Yukon River Trail Marathon and what time does it start?

The full marathon runs on Sunday, August 2, 2026, with an 8:30am gun start from Rotary Peace Park in downtown Whitehorse. A 7:00am early-start option is offered for slower walk-run finishers. Bib pickup runs Friday evening and Saturday at Sport Yukon.

How tough is the course, and is it really trail?

Yes, it is a genuine trail marathon. The course is divided into four legs of 8-13K with about +897m of total climbing along the Yukon River and a few small lakes. Roughly 3.5km of paved path bookends the start and finish; the rest is mostly forested single-track with exposed roots and constant up-and-down. It is regularly billed as one of the toughest marathons in North America, so plan a trail effort, not a road PR. Use our pace calculator to set realistic trail splits.

How big is the field?

Small and intimate by design. The full marathon usually draws roughly 50 finishers (52 in 2024, 43 in 2023). This is a community destination race in Canada's far north, not a mass-participation event, which is part of its appeal: quiet trails, a tight-knit start line and a real wilderness feel.

Is the Yukon River Trail Marathon a Boston qualifier?

No. It is a trail course and is not certified for Boston qualifying, so a time here cannot be used to enter Boston. If chasing a BQ is your goal, run a certified road race instead and check your standard with the Boston qualifying calculator. Come to the Yukon for the adventure and the scenery, not the qualifying time.

What is the time limit?

There is no hard mid-pack cutoff advertised, but the early-start option exists for runners who expect to need more than about 5.5 hours, and most finishers should plan to be done well within 7 hours. On this rooty, climbing single-track, finishing times run much slower than a road marathon, so judge yourself by effort and terrain, not your flat-course time. The finish-time calculator can help you set expectations.

What is it like running under the northern summer sun?

Early August in Whitehorse delivers extraordinarily long days; at 60 degrees north the sun barely dips, so you run in bright, generous daylight rather than the dark. The light makes the river, the boreal forest and the small pothole lakes glow, and the cool northern air keeps temperatures runner-friendly. It is a rare midnight-sun setting you will not find at a southern marathon.

How do international runners get to Whitehorse and enter Canada?

Whitehorse (YXY) has direct flights from Vancouver and seasonal links, so most travellers connect via Vancouver. Visa-exempt visitors (most of Europe, Japan, Australia) need only an online eTA before flying; travellers whose passports require a visa must obtain a Canadian visitor visa in advance. Book early, as summer is peak season in the Yukon and accommodation in Whitehorse is limited.