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⏵ Course guide · Wyoming ultra

Wyoming Range 100 Course Guide

The Wyoming Range 100 is a 105.7-mile point-to-point through some of the most remote, rugged country in the Mountain West, from Middle Piney Lake to Box Y Ranch in Bridger-Teton National Forest. It is high, it is lightly marked in places, and it asks for roughly 24,000 feet of climbing over two nights. I will walk you through the course first, then give you a pacing and fueling plan that fits the altitude, the scree, and the cutoffs. There are free calculators along the way to dial in your own numbers.

⏵ At a glance

Wyoming Range 100 quick facts

Date
August 7 to 9, 2026 (early-August weekend)
Location
Wyoming Range, Bridger-Teton National Forest. Point-to-point, Middle Piney Lake to Box Y Ranch, near Pinedale, WY
Distance
105.7 miles (one course, no shorter option)
Elevation gain
About 24,000 ft of climbing
Start
Friday, 7:00 AM MT at Middle Piney Lake
Cutoff
48 hr overall, with two hard intermediate cutoffs: McDougal Gap (54.6 mi) at 22 hr, Grizzly Basin (83.9 mi) at 36 hr
Aid stations
Eleven aid stations along the course
Qualifier
Hardrock 100 qualifier: yes

These facts come from the official race site and UltraSignup. Check the current date, cutoffs, and aid stations in the race-day details before you commit. Race logistics change year to year.

The course: where the Wyoming Range 100 is won and lost

This is a true mountain hundred, not a runnable rolling course with a hundred-mile sticker. You travel the spine of the Wyoming and Salt River ranges, tagging a string of high peaks, and a lot of the route is scree, faint track, and cross-country travel marked by cairns and flags. Eleven aid stations, about 24,000 feet of gain, and a high point up near 11,200 feet. You win this race by staying patient, staying fed, and staying on course.

The opening: scree peaks and a slow, careful start

You start at Middle Piney Lake and the course goes up fast, summiting a run of high peaks early, some of them covered in loose scree where you are using your hands on the rock. This is not the place to chase a time. The footing is unstable, the trail is faint to non-existent in spots, and you have to actually watch for the flags and cairns or you will go off route. Bank your energy and your patience here, because the day is very long and the back half is where it gets decided.

Up high you are on the ridge and in alpine meadow, with big exposure and weather that can turn on you in minutes. Move steady, keep your eyes up for markers, and resist the urge to push just because the early miles feel good. Going out hard on this course is how people end up walking it in.

The steep middle: the climbs that break people

The middle of the course is a brawl. Several sections gain 3,000 feet or more, and a few of the climbs are absurdly steep, including a stretch above Menace Falls that goes roughly 1,000 feet in a single mile with no switchbacks, straight up loose, rough trail. There are box-canyon climbs, faint trail through tall meadow grass, and creek crossings where you just charge through the water. This is also where both hard cutoffs live, at McDougal Gap (mile 54.6) and Grizzly Basin (mile 83.9), and where most of the day-of drops happen.

Hike these climbs with purpose and keep eating, because the danger zone is reaching the cutoffs late and gutted. If you climb efficiently, fuel steadily, and keep your head together through the middle, you give yourself a real shot at the finish. If you arrive at McDougal or Grizzly Basin cooked, the math gets ugly fast.

The two nights, the remoteness, and the long descent home

You will be out for two nights on this course, and the second one is the test. The climb out of Grizzly Basin toward Strawberry Creek is gradual but deceptive, the trail goes faint as you enter the bowl, and it is genuinely tough in the dark. Strawberry Creek is not crew or pacer accessible and sits a long way from the finish, so this is a stretch you handle on your own with whatever you carried and whatever is in your head. Late in a hundred this remote, the lows hit harder. Expect them, ride them out, keep moving.

The finish is a big drop into the Greys River basin, with a final mile-and-a-half kick of around 1,500 feet of descent into Box Y Ranch. Fast, if you saved anything for it. Long downhills on tired, technical legs trash your quads, so train controlled descending and keep enough in reserve that you can actually run those last miles instead of hobbling them.

Pacing strategy for a high, rugged, two-night hundred

With about 24,000 feet of gain, scree, faint trail, and a 48-hour clock, the Wyoming Range 100 is about managing effort and the cutoffs, not hitting a pace chart. Run by feel, hike the steep climbs hard, and back into McDougal Gap and Grizzly Basin with buffer.

Pace by grade and altitude, not by the watch

Your flat-ground splits mean nothing on this course. What matters is grade-adjusted effort at altitude, so hold a steady output you can sustain up the climbs, power-hike the steep pitches without guilt, and never let your heart rate spike chasing a number. Most of the field is hiking the big climbs anyway. Use a grade-adjusted pace to turn your real fitness into honest climbing and descending targets, and you will not torch yourself in the first 50 miles before the course even gets hard.

Build a finish window and work back into the cutoffs

Do not guess your finish off a flatter hundred. The 24,000 feet of climbing, the technical and faint trail, the altitude, and two nights of moving all add real time, and the average finish here is well over 40 hours. Build a vert-aware finish prediction for this profile, then work backward into the two hard cutoffs so you know exactly what time you need to leave McDougal Gap (mile 54.6, 22 hr) and Grizzly Basin (mile 83.9, 36 hr). Knowing your buffer at each checkpoint is what keeps a bad patch from turning into a DNF.

⏵ Free tools to pace this course

Fueling strategy for 40-plus hours at altitude

Most finishers are out here for well over a day and a half, much of it high and remote, with long gaps between aid. That makes carbohydrate, sodium, and fluid every bit as important as fitness, and it makes a gut you have trained non-negotiable.

Carbs: steady for the long haul, and trained

For an effort this long, think in terms of a carbohydrate rate you can hold hour after hour, often somewhere around 60 to 90 grams per hour, and only push the higher end if your gut is genuinely trained for it. Altitude and fatigue both blunt your appetite and slow your stomach, so keep intake steady and easy to get down rather than gambling on big catch-up doses late. The biggest fueling mistake in a remote hundred is quietly under-eating for hours and bonking in the dark, so practice your exact race-day carb rate on long back-to-back days until it feels normal.

Sodium, fluid, and real food for the gaps and the cold

Carry enough fluid and calories to get yourself across the long, exposed stretches between the eleven aid stations, and remember Strawberry Creek gives you no crew or pacer help. Dial sodium to your own sweat, often a few hundred milligrams per hour, more if you run salty or the day turns hot. When it gets cold and the weather turns, which it can do even in August up here, warm food and real calories at aid stations keep your core and your morale up better than gels alone. Weigh yourself before and after a long mountain day to learn your real sweat rate, then build the plan around your number.

⏵ Build your fueling plan

Get a carb, sodium, fluid, and caffeine plan per hour built for your weight, your goal time, and a two-night Wyoming Range effort with the free ultra fueling calculator. Browse the rest of the free running tools at the tools hub.

⏵ Train for it with Summit Line

Get a race-day plan built around YOUR fitness, this exact Wyoming Range course profile, and your projected splits. Summit Line reads your real training, builds a plan for 24,000 feet of climbing at altitude, and rehearses your fueling so race day is something you execute, not guess at.

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Wyoming Range 100 FAQ

How hard is the Wyoming Range 100?

It is one of the hardest, most remote hundreds in the Mountain West, so go in with respect. You cover 105.7 miles point-to-point with around 24,000 feet of climbing on high, lightly maintained mountain trail that averages near 8,600 feet, and big stretches of it are scree, faint track, and cross-country travel marked by cairns and flags. The finisher rate sits around 75 percent and the overall cutoff is 48 hours, so this is a two-night effort where staying on your feet and on course matters more than speed. If your only hundred so far was a smooth, well-marked course, this is a real step up.

How much climbing is in the Wyoming Range 100?

About 24,000 feet of vertical gain over the 105.7 miles, per the race. The course tags a string of high peaks along the spine of the Wyoming and Salt River ranges, with a high point near 11,200 feet and a low around 6,200 feet, so you are constantly climbing and descending rather than rolling. Several individual sections gain 3,000 feet or more, and a few of the climbs are brutally steep, including one that goes roughly 1,000 feet in a single mile with no switchbacks. Train the up and the down equally, because both halves of the profile will find you.

What are the cutoff times for the Wyoming Range 100?

You get 48 hours overall to cover the full course to Box Y Ranch. There are only two hard intermediate cutoffs, but they bite right in the heart of the race: 22 hours at McDougal Gap (mile 54.6) and 36 hours at Grizzly Basin (mile 83.9). Both are enforced on the way out, meaning you have to leave the aid station before the clock hits, not just arrive. Most of the day-of drops cluster between those two points, so build your plan to reach the middle of the course with time and legs in the bank.

Is the Wyoming Range 100 a Hardrock qualifier?

Yes. The Wyoming Range 100 is a Hardrock 100 qualifier, which fits its profile as a high, rugged, hand-on-rock mountain hundred. It is not listed as a Western States or UTMB qualifier. Qualifier lists do change year to year, so confirm the current status with the race and with Hardrock before you count on it for your application.

What is the terrain and weather like at the Wyoming Range 100?

The terrain is genuinely rough: scree fields you scramble through hands-on, faint or non-existent trail marked by flags and cairns, multiple creek crossings, long above-treeline ridge running, and a handful of fire-road and rougher single-track stretches lower down. It is remote country, and one aid station (Strawberry Creek) is not crew or pacer accessible. The weather can throw all four seasons at you in one race: past years have seen snow, sleet, thunderstorms, and below-freezing temps up high, and other years all-day sun and morning fog. Pack and plan for cold, wet, and storms at altitude even though it is August.

How should I plan crew, pacers, and drop bags for the Wyoming Range 100?

Treat logistics as part of the race here because the course is remote and the support is sparse. Pacers are allowed and a fresh set of legs and a clear head are huge through the second night, so line one up if you can. Build your drop bags around warm layers, a real headlamp plan for two nights, and the long, exposed gaps between aid, and remember that Strawberry Creek is not crew or pacer accessible. Confirm the current crew-access points, pacer rules, and drop-bag logistics in the race-day instructions before you finalize anything.

This guide is independent and for planning only. The course details, dates, cutoffs, and aid stations come from public sources and can change year to year, so confirm the current specifics with the official race before you register or run. The fueling and pacing advice is general and not medical advice.