San Juan Softie 100: A Complete Course Recon Breakdown Using HARDN

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There are races named after the mountains they cross. And then there's the San Juan Softie — named with the kind of understatement that only makes sense when you realize the course sits entirely above 8,400 feet, crests above 12,000 feet multiple times, and delivers 25,127 feet of climbing across 103.7 miles through one of the most remote mountain ranges in the lower 48.

The San Juans don't care what your Strava looks like. They don't care about your 100K PR. This course, starting and finishing from South Mineral Campground outside Silverton, Colorado, is altitude-first, crew-limited, and brutally honest about what it takes to finish.

The name is a joke. The race is not.

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The Big Picture

Before you zoom into segments, you need to see the whole course at once.

[COURSE_ELEVATION:san-juan-softie-100]

The profile tells the story immediately. This is not a race with a big opening climb followed by a gradual descent. It's a sawtooth — relentless up-and-down between 8,400 and 12,400 feet for the entire 103.7 miles. There is no extended flat section anywhere on this course. Every time you drop, you're climbing again within miles.

The first 45 miles push you through two major high-altitude blocks above 11,000 feet, with a sustained ridgeline traverse that crests near 12,400 feet around mile 30. The middle section (miles 45–65) includes the second block above 12,000 feet — the crux of the race. Then miles 65–88 deliver a violent descent to the lowest point on course (8,435 feet at Big Lick, mile 87.8) before one final 1,900-foot climb back to altitude at mile 88. The last 8 miles include another climb over 10,600 feet before finally descending home.

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3D Flyover

[COURSE_FLYOVER:san-juan-softie-100]

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Aid Station Overview

[COURSE_AID_STATIONS:san-juan-softie-100]

Crew access is severely limited. Your crew can only reach you at Aid 5 (Cross Mountain, mile 45.8), Aid 8 (Ryman, mile 71.3), Aid 9 (Coral, mile 79.9), and Aid 11 (Elbert Creek, mile 95.5). That means you're running the first 45 miles with no crew. Drop bags are available at Aid 4 (mile 35.75), Aid 5, Aid 8, Aid 9, and Aid 11 — plan your nutrition and gear changes around those five stops.

Aid 3 (mile 28) is a backcountry station — water and light snacks only, at 11,480 feet. Aid 10 (Big Lick, mile 87.8) is remote with light snacks and no crew. Do not count on a full reset at either.

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Segment-by-Segment Breakdown

Segment 1: Start to Aid 1 — Miles 0 to 8

Effort: Conserve | Terrain: Opening Climb | Elevation: +1,800 ft

[COURSE_SEGMENT:san-juan-softie-100:0]

The race starts at South Mineral Campground (8,783 ft) and immediately climbs. You gain roughly 1,800 feet in the first 8 miles, topping out around 10,600 feet before a slight dip to Aid 1 at 10,414 feet. The terrain is steady — mining roads and trail through dense forest, then opening up as you gain altitude.

How to race it: Set a heart rate ceiling and stay under it. You're starting at 8,800 feet and climbing to 10,600 — altitude suppresses effort perception. Runners who push the opening climb burn glycogen they'll need at mile 55 when the second 12,000-foot block hits. Walk everything above 10% grade. This is a 48-hour race. Act like it.

Nutrition timing: Start eating by mile 3. Altitude kills appetite early. Aim for 200+ calories per hour from the gun. Aid 1 is light — no crew, basic supplies.

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Segment 2: Aid 1 to Aid 2 — Miles 8 to 19.5

Effort: Steady | Terrain: Rolling High Country | Elevation: Net descent, undulating

[COURSE_SEGMENT:san-juan-softie-100:1]

After Aid 1, the course rolls through high country between 9,000 and 10,600 feet. There are constant short climbs and descents — the profile shows the sawtooth pattern clearly. You descend overall to Aid 2 at 9,072 feet, but the rolling terrain means you're never resting. This stretch is deceptively demanding.

How to race it: Steady effort. Run the downhills, hike the uphills, don't chase anyone. The terrain is runnable when it's down, but the constant undulation prevents any rhythm. This is where patient runners separate from impatient ones.

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Segment 3: Aid 2 to Aid 3 — Miles 19.5 to 28

Effort: Very Hard | Terrain: Major Alpine Climb | Elevation: +2,400 ft to 12,400 ft

[COURSE_SEGMENT:san-juan-softie-100:2]

This is where the San Juans announce themselves. From Aid 2 at 9,072 feet, the course climbs relentlessly to the highest terrain on the race — cresting above 12,000 feet by mile 28. The gain is roughly 2,400 feet in 8.5 miles, but the altitude makes every foot of it harder than it looks. You're breathing hard at 11,000 feet. At 12,000, you're gasping.

Aid 3 at mile 28 sits at 11,480 feet — a backcountry station with water and light snacks only. No crew. No full kitchen. You need to be self-sufficient through this stretch.

How to race it: Hike everything above 11,000 feet. Power hiking is faster than running at this altitude for most athletes. Take in electrolytes aggressively — altitude dehydrates faster than you feel. If you have a headache or nausea, slow down. Altitude sickness ends races.

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Segment 4: Aid 3 to Aid 4 (Middle of Nowhere) — Miles 28 to 35.75

Effort: Hard | Terrain: High-Altitude Traverse | Elevation: Sustained above 11,000 ft

[COURSE_SEGMENT:san-juan-softie-100:3]

You're above 11,000 feet for this entire segment. The course crests at 12,399 feet near mile 30 — the race high point — then traverses along ridgeline between 10,800 and 11,700 feet. This is exposed alpine terrain with no tree cover. Weather here can turn fast — afternoon thunderstorms are common in August.

Aid 4 is called "Middle of Nowhere" and it earns the name. It's at 11,221 feet, mile 35.75. Drop bags are available here. This is your first opportunity to resupply gear.

How to race it: Keep moving. The altitude is relentless and standing still makes it worse. Eat what you can. If thunderstorms roll in, get below ridgeline immediately. Lightning above 12,000 feet is the single biggest external risk on this course.

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Segment 5: Aid 4 to Aid 5 (Cross Mountain) — Miles 35.75 to 45.8

Effort: Controlled | Terrain: Long Descent from High Country | Elevation: −1,200 ft

[COURSE_SEGMENT:san-juan-softie-100:4]

Finally, a sustained descent. From 11,221 feet at Middle of Nowhere, the course drops to 10,027 feet at Cross Mountain over 10 miles with rolling terrain along the way. The lungs get a break. The quads take over.

Aid 5 at Cross Mountain (mile 45.8) is the first full crew access point. Pacers can join here. Drop bags available. This is your first major reset — treat it like it.

How to race it: Controlled descent. Your quads have been absorbing altitude for 35 miles — don't bomb this section. Short stride, relaxed effort. You're approaching halfway and you need these legs for another 58 miles. Spend real time at Aid 5 with your crew. Eat, change socks, refill everything.

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Segment 6: Aid 5 to Aid 6 (Calico) — Miles 45.8 to 52.8

Effort: Steady | Terrain: Rolling Climb | Elevation: +250 ft net

[COURSE_SEGMENT:san-juan-softie-100:5]

A shorter segment — 7 miles of rolling terrain from Cross Mountain to Calico at 10,279 feet. The profile shows a modest climb with some ups and downs. Not as brutal as what came before, but you're now past marathon distance and the accumulation of altitude and vert is real.

Aid 6 at Calico is full aid but no crew access. Top off and get ready — the hardest section of the race is next.

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Segment 7: Aid 6 to Aid 7 (Burnett) — Miles 52.8 to 64.8

Effort: Survive | Terrain: Second High-Altitude Block | Elevation: Crests 12,000+ ft twice

[COURSE_SEGMENT:san-juan-softie-100:6]

This is the crux. Twelve miles from Calico to Burnett with two ascents above 12,000 feet. The profile shows it clearly — a massive climb from 10,279 feet to above 12,100 feet around miles 57–58, a descent, then back up above 12,000 around miles 60–61. You're now 55+ miles into a 100-miler and you're climbing back to the same altitude that destroyed you at mile 28.

Aid 7 (Burnett, mile 64.8) is light aid with no crew or pacers. 12 miles of hard climbing and no full support at the end. This is the segment that breaks the most runners.

How to race it: Survival pace. Walk every climb. Eat on a schedule regardless of appetite — force calories at 53, 56, 60, and 63 miles. If you're moving forward, you're winning. This is not the segment for pace goals. It's the segment for mental toughness.

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Segment 8: Aid 7 to Aid 8 (Ryman) — Miles 64.8 to 71.3

Effort: Controlled | Terrain: Major Descent | Elevation: −1,800 ft

[COURSE_SEGMENT:san-juan-softie-100:7]

After the crux, the course delivers a massive descent — dropping 1,800 feet from 10,263 feet at Burnett down to 8,445 feet at Ryman over 6.5 miles. This is the lowest elevation since mile 19 and the first time below 9,000 feet in 50+ miles. The air is thicker. The lungs work again.

Aid 8 at Ryman is full crew access with pacers. This is your second major reset.

How to race it: Let gravity work. Don't brake hard on the descent — relaxed stride, use the downhill to recover mentally. At Ryman, take time. Eat real food. Your crew should have a plan for this stop — gear changes, fresh bottles, whatever you need for the next 32 miles.

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Segment 9: Aid 8 to Aid 9 (Coral) — Miles 71.3 to 79.9

Effort: Very Hard | Terrain: Major Climb Back to Altitude | Elevation: +2,300 ft

[COURSE_SEGMENT:san-juan-softie-100:8]

You knew it was coming. From the low point at 8,445 feet, the course climbs 2,300 feet back to 10,788 feet at Aid 9 (Coral). Night running is likely for most athletes in this section. The temperature drops. The altitude returns. The body that felt better at Ryman remembers it's been moving for 20+ hours.

Aid 9 at Coral is a full stop — crew, pacers, drop bags. This is your last major crew access before the final push.

How to race it: Headlamp on, pacer locked in, steady hike. No one is running this climb at mile 73. The runners who finish are the ones who keep moving through this section without sitting down. Walk, eat, drink. Repeat. For 8.6 miles.

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Segment 10: Aid 9 to Aid 10 (Big Lick) — Miles 79.9 to 87.8

Effort: Steady | Terrain: Descent to Low Point | Elevation: −2,350 ft

[COURSE_SEGMENT:san-juan-softie-100:9]

Another big descent — 2,350 feet from Coral down to Big Lick at 8,435 feet. The course gives back the altitude it just took. Run what you can. The footing may be sketchy in the dark.

Aid 10 at Big Lick is remote — light snack only, no crew, no pacers, no drop bags. Refill bottles and keep moving.

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Segment 11: Aid 10 to Aid 11 (Elbert Creek) — Miles 87.8 to 95.5

Effort: Very Hard | Terrain: Final Major Climb | Elevation: +1,900 ft

[COURSE_SEGMENT:san-juan-softie-100:10]

The last major climb. From 8,435 feet at Big Lick, you're climbing 1,900 feet back to 10,302 feet at Elbert Creek. This hits at mile 88 — 88 miles into a 100-miler, 25 hours or more on your feet, and the course is asking for one more sustained climb back to altitude.

Aid 11 at Elbert Creek is full support — crew, pacers, drop bags. Last real stop before the finish.

How to race it: Everything you have left. Your pacer's job is to keep you moving when your brain says stop. Walk the climb. Eat whatever stays down. Caffeine if you haven't already. The finish is 8 miles away.

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Segment 12: Aid 11 to Finish — Miles 95.5 to 103.7

Effort: Push | Terrain: One Last Climb Then Descent | Elevation: +300 ft net climb, then descent

[COURSE_SEGMENT:san-juan-softie-100:11]

The course isn't done with you. From Elbert Creek at 10,302 feet, there's one more climb cresting around 10,600 feet near mile 97, then a sustained descent back to South Mineral Campground at 8,785 feet. The last 5 miles drop steadily. Run them.

How to race it: Push over the final climb. Don't walk the descent — this is where you earn your finish. 8 miles. You've done harder things in the last 30 hours. Gravity is on your side. Take it home.

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Altitude Strategy

This race never drops below 8,428 feet. The average elevation across all 103.7 miles is approximately 10,200 feet. You will spend roughly 30 miles above 11,000 feet and 10+ miles above 12,000 feet.

If you don't live at altitude, arrive in Silverton at least 3–4 days early. Sleep low, hike high. Hydrate aggressively — altitude dehydration compounds faster than heat dehydration. Consider discussing altitude medication (Diamox) with your doctor if you've had altitude issues before.

Fueling at altitude is different. Your appetite disappears above 11,000 feet. Set alarms on your watch — eat on schedule, not by feel. Liquid calories (Tailwind, Maurten mix) work better than solids above treeline. Nausea at altitude is normal. Vomiting is a warning sign. If you can't keep fluids down for 30 minutes, stop and assess.

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Crew & Pacer Logistics

This race is crew-limited by design. Your crew can reach you at:

- Aid 5 (Cross Mountain, mile 45.8) — first crew, pacer pickup
- Aid 8 (Ryman, mile 71.3) — crew, pacers
- Aid 9 (Coral, mile 79.9) — crew, pacers, drop bags
- Aid 11 (Elbert Creek, mile 95.5) — crew, pacers, final stop

That's four crew access points across 103.7 miles. Your crew will spend significant time driving remote mountain roads between stations. Make sure they have 4WD, a full tank, and detailed directions from the race organizers.

Drop bags are available at Aid 4 (mile 35.75), Aid 5, Aid 8, Aid 9, and Aid 11. Pack nutrition, spare headlamp batteries, an extra layer, and fresh socks in each.

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Weather

August in the San Juans means afternoon thunderstorms are nearly guaranteed above treeline. Morning starts are clear and cool (40s–50s °F). By 1–3 PM, clouds build and lightning moves in above 12,000 feet. Night temperatures can drop to the 30s.

Pack layers. A lightweight rain jacket is mandatory gear for this race — not because of rain, but because of hypothermia risk above 12,000 feet in a thunderstorm. Arm warmers, a buff, and gloves weigh nothing and save races.

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