Hardrock 100 Mile Endurance Run Race Report

For a thoughtful, more detailed write-up of Dandelion’s Hardrock 100 Mile race experience, from start to finish, check out “Hardrock 100: TRR Coach Dandelion’s Race Rundown“. You’ll read how her mental and physical strength allowed her to endure a myriad of challenges and still finish smiling!

TRR Coach Dandelion Dilluvio-Scott finishing the Hardrock 100 Mile Endurance Run. PC: Andrew Podbielski
TRR Coach Dandelion Dilluvio-Scott finishing the Hardrock 100 Mile Endurance Run. PC: Andrew Podbielski

Race: Hardrock 100 Mile Endurance Run

Runner: Team RunRun Coach Dandelion Dilluvio-Scott

Race Date: 07/11/2024

Location: Silverton, CO

Result: 47:03:41; 104th Place; 17th Female

3 Bests – What aspects of the race did you like the most?
  1. Extreme mountain environment: With a high point of 14,048 feet and an average elevation of 11,000 feet, the Hardrock 100 Mile Endurance Run course is the definition of a high alpine setting. As an athlete who lives in the Wyoming Rockies and trains high, I am fascinated by altitude. I am also highly drawn to races with rough and rugged terrain. One of my favorite puzzles to solve is how to adapt and move with these kinds of mountain environments.
  2. The lure: There is something captivating and pleasantly intimidating about running a race that less than 2,000 people have completed in its 30 runnings!
  3. Handies Peak: Ascending to the summit of a 14’er (a mountain with a peak above 14,000-foot) in the middle of a 100-mile race is so uniquely special!
Not so much – Aspects of the race that didn’t do it for you

Nothing!

Weird factor – What’s the weirdest thing about this race?
Kissing “the rock” at the finish is likely the most delightfully weird quirk of Hardrock! Another unique factor is that the race alternates between going clockwise and counter-clockwise each year. You’re not a “True Hardrocker” unless you have gone both directions.
Highlights of your race – What did you do well and enjoy about your race in particular?

One of the biggest highlights of Hardrock for me was how strong and smooth the first half felt. I was hitting my paces, my fueling was spot on, and I was genuinely enjoying myself out there. Climbing Handies Peak with a couple of other runners was probably my favorite moment—we worked together really well, and being on top of a 14er mid-race with that view was just unforgettable.

Dandelion kissing the infamous rock at the finish line. PC: Travis McWhorter
Dandelion kissing the infamous rock at the finish line. PC: Travis McWhorter

What made this race extra special, though, was how much I actually took it in. Usually in races I’m so focused on execution that I barely notice what’s around me. But during Hardrock, I made sure to stop for a second here and there to really appreciate the San Juans—the wildflowers, the ridgelines, the stillness. It felt like I was part of something much bigger.

I also feel proud of how I handled the second half when things got rough. My nutrition fell apart, and the heat and altitude started hitting hard. I had a moment where I broke down crying, but I didn’t let it derail me. My pacers were incredible, and once I got it out of my system, I reset, dug deep, and just kept going. That emotional turnaround—choosing to keep moving forward when it got really hard—is something I’ll carry with me for a long time.

More than anything, I loved the connection I felt: with the mountains, my crew, and even with myself. It was one of those experiences that shifts something inside you.

Lessons for others – Share your pro-tips on the race to help the next runner

Don’t think of each alpine running variable individually (exposure, weather, intensity, attitude, technical terrain, etc.). Instead consider how they might compound. For example, I live at altitude and sleep in an altitude tent, but I still struggled at elevation later in the event because of how the elements combined.

I also recommend working with a team of professionals while training for a rare opportunity event like the Hardrock 100 Mile. I believe that having a coach, in addition to a running specific physical therapist and sports chiropractor, allowed me to stay healthy and endure the massive training load this event required.

Finally, if you are running supported, choose crew and pacers you can 10,000% trust with the right mix of personalities. After I gave my team a pre-race orientation, I never thought about it again. I knew with absolutely certainly that they would carry out my plan and also make the appropriate changes when necessary. You don’t want to wonder if your team will have the right drink mixed for you upon your arrival while you’re climbing Handies!

Lessons you learned that will help you next time around

Be prepared to troubleshoot things that have never happened to you before. I never get GI distress… and yet I did big time at Hardrock!

Hardrock 100 course map.
Hardrock 100 course map.
Most important course specific knowledge to know about the race

A lot of focus is on the 33,000ft of uphill…. but you also have to descend the same amount! Practice your downhill technique and train for the eccentric loading.

Views of the beautiful Hardrock 100 Mile course.
Views of the beautiful Hardrock 100 Mile course.
Aesthetics – Is it a pretty course?

Imagine rugged, snowcapped mountains towering into the sky. Majestic sunsets/rises. Unique and colorful geology. Florescent wildflower meadows. Cascading waterfalls. Shimmering alpine lakes… yep it was pretty!

Difficulty – Is it a tough course?

YES! It was indeed both wild and tough, in addition to being hard and rocky! The terrain, exposure, elements, steep grades, and vert/descent are all huge undertakings on their own! It’s not the individual difficulties, but how they compound throughout 100 miles.

Organized and well run – Did it feel like a well-oiled machine or were they flying by the seat of their pants?

The Hardrock 100 Mile Endurance Run is a tremendously well-oiled machine! The care and attention to detail to ensure this event is a unique and remarkable experience for every runner present was unmatched. The check in process was seamless. Trail marking was exceptional. And, most of all, the volunteers at every aid station were knowledgeable, full of energy, and went above and beyond the call of duty. One thing that stands out is when I arrived at Sherman, I was directed to a volunteer who already had my drop bag items laid out on a table. She then proceeded to take care of anything I needed. My own personal volunteer! I’ve never encountered anything like it before. Mind blowing!

Competition – Is there a strong field?

YES! One of the strongest fields I have ever had the pleasure to race with!

Logistics – Does it require a special handshake, registration a year in advance, hotels all booked? Give us the low down on the nuts and bolts of making the race happen.

The Hardrock 100 Mile Endurance Run is a lottery race and you must run a qualifying race every 2 years to be considered. I was lucky enough to get into the race after only 2 years of applying, but there are folks who wait 10+ years! The process is nuanced, and more in-depth information can be found here.

Dandelion pre-race holding her Hardrock 100 bib. PC: Travis McWhorter
Dandelion pre-race holding her Hardrock 100 bib. PC: Travis McWhorter
Aid Stations – Standard fare or anything special to know about the aid stations in terms of what’s available or when?

The aid stations have the standard fare like PB&J, quesadillas, fruit, chips, cookies, broth, candy, etc. This year, engineered nutrition/hydration was provided by Tailwind and Maurten. Most aid stations also have a “special offering” that is unique to them: pizza, homemade rice krispies, perogies, etc.

Weather and typical race conditions

This is the San Juans! Anything and everything can happen. This year, there was smoke during the beginning of the race that cleared. Then it was hot during the day (70-85F) and mildly chilly at night (40-50F), which was unusual. Most years see some kind of electric event along with rain, hail or snow …or all of it! It is also common to experience very hot days followed by nights below freezing.

Gear – Did you need anything special or is there anything you’d recommend for the next runner?

Poles and backup poles. I would not want to do this race without them! Extra electrolytes come to mind as well, because at altitude you need so much more! Also, sun protection, rain and cold weather gear.

Spectators – Is this a friendly course for your friends?

The course passes though the towns of Silverton, Ouray and Telluride which are all very accessible for spectators. Other aid stations require a 4×4 or ATV.

How’s the Swag?

So much swag! I left check in with three shirts! Additionally, there were tables filled with items for purchase. And, of course, there’s the awesome Hardrock 100 Mile finishers’ buckle!

The Overall Score – How many stars do you give this race and do you recommend that others run it?

10,000 out of 10! This race is custom made for high alpine mountain runners who want to challenge themselves like never before and witness surreal beauty.

Dandelion Dilluvio-Scott is a multisport outdoor athlete, ultra-runner and certified coach. She is passionate about collaborating with driven athletes who love to explore, train and play outside.

Hardrock 100: TRR Coach Dandelion’s Race Rundown

Team RunRun Coach Dandelion Dilluvio-Scott finished the 2025 Hardrock 100 Mile Endurance Run in 47 hours, 3 minutes, and 41 seconds, less than 1 hour under the 48-hour time limit. Far from the 33-hour finish she’d trained for, Dandelion’s mental and physical strength allowed her to endure a myriad of challenges and still finish smiling. Alongside her traditional race recap, which can be found here, Dandelion details her race experience beautifully below.

“It Was The Best of Times; It Was The Worst of Times”

Dandelion at the finish of the Hardrock 100. PC: Travis McWhorter
Dandelion at the finish of the Hardrock 100. PC: Andrew Podbielski.

The quote from Charles Dickens’ A Tale of Two Cities perfectly sums up my Hardrock 100 Mile Endurance Run experience: “It was the best of times; it was the worst of times.” But let’s start from the beginning.

Lottery Luck: I’m Racing the Hardrock 100!

On December 1, 2024, I returned from a long desert run to a flood of congratulatory texts. I couldn’t fathom what I’d done to earn so much praise—until I opened my inbox and saw the UltraSignUp receipt. Against all odds, I’d gotten into the Hardrock 100 with only two tickets! In an instant, my 2025 plans were rearranged, and training for high-level mountain running became my mission. It would not be an exaggeration to say that the preparation
involved copious amounts of blood, sweat and tears! The volume of running, hiking, strength work, vert, cross-training, and corrective exercises was massive. Countless talks with my coach, visits to my chiropractor, and physical therapy sessions kept me on track and my body tuned for the intense workload. And then, abruptly, it was time to taper.

The Final Countdown

By the time I arrived in Silverton, Colorado, I felt like a caged tiger—I just wanted to GO! Thankfully, my team kept me in check: easy shakeout run, race check-in, gear review, nutrition planning, crew meeting, bedtime.

Surprisingly, I slept well the night before the race. There was a palpable sense of calm and tranquility. I trusted my crew, my training, and my experience with the distance. Yet I also recognized I was stepping into the great unknown—part of what made it so exhilarating—and I deeply respected the course. I felt confident I had done everything I could to prepare. Now it was time to execute the plan, adapt to the inevitable problems, and see what unfolded.

Dandelion pre-race holding her Hardrock 100 bib with her crew. PC: Travis McWhorter
Dandelion pre-race holding her Hardrock 100 bib with her pacers. PC: Travis McWhorter

I trained not just to finish but to perform. I wasn’t under any illusion I’d outrun the elite-level runners on the start list, but if everything went well, I believed I could finish in 33–35 hours. On race morning, Dale Garland called us to the corral, and I found myself lining up right next to legends Katie Schide and Zach Miller, two of the best runners in the world. It was surreal! The countdown began—and we were off, galloping down the road toward the mountains.

And We’re Off on the Hardrock 100!

As expected, everyone shot out hot. We were running Hardrock! I settled into my pacing strategy as the wide streets of Silverton gave way to trails, letting the field spread out. This was not the time to race—this was time to chase, savor the moment, and practice restraint. Meanwhile, smoke from wildfires drifted in overnight, and the air smelled of ash. Thankfully, as we climbed higher, the smoke thinned and finally disappeared, revealing astoundingly beautiful 360-degree views.

At the Cunningham Aid Station, my husband met me and guided me to Luke and Andrew. Vest swap. Food. Protein shake. NASCAR pit crew style—I was out of there. I wouldn’t see my team again for about 50K. (You can better understand the names and layout along the course of the aid stations here.)

50 Miles to Remember (Positively) 

Running ultras without crew support is my norm, so the solo 50K felt comfortable. The section to Burrows Aid Station included steep climbs and the most “rolly” terrain of the course. I trotted along, cooling off in creeks and snow patches as midday heat rose, bouncing in and out of a bubble of runners. Sometimes we chatted, other times we ran in shared silence, awestruck by vast wildflower meadows and stunning vistas. In most races, I barely notice scenery, absorbed in execution, but here I made sure to soak in the San Juans before returning to my race strategy. My fueling, salt, and hydration were on point. Everything was going to plan, and I was having a blast playing in the mountains.

After Burrows, the main objective loomed: Handies Peak—the course’s high point at 14,048 feet. I teamed up with two athletes on the ascent, and together we made efficient work of the climb. Between the great company and tagging a 14er summit mid-race, this was easily my favorite section. Nothing compares to standing atop a 14er during Hardrock!

TRR Coach Dandelion Dilluvio-Scott enjoying the beautiful trails and scenery. PC: Travis McWhorter
TRR Coach Dandelion Dilluvio-Scott enjoying the beautiful trails and scenery. PC: Travis McWhorter

Steep ascents are followed by steep descents, and this one felt endless but offered incredible scenery. At sunset, I rolled into Animas Forks Aid, reuniting with my crew. Toenail blister lanced, shoes swapped. I tried eating solid food but struggled to swallow—it all felt like sandpaper. Still, I could handle gels and liquids, so I didn’t overthink it.

Night #1: The Unravelling

Luke joined me for pacing duty, and we climbed toward Engineer Pass. Though we were moving efficiently, I observed that my breathing was getting more labored compared to earlier in the day. Then, at the next aid station, I realized solid food was no longer an option, and gels were becoming repulsive. Luke insisted on consistent gel consumption, monitoring each one to ensure I finished it. I was doing my best to keep calories coming in, but I knew I was starting to fall behind. The gorge descending into Ouray was electrifying at night! A narrow and technical trail beside a dark drop-off into nothing. Luckily, my background as an alpinist helped me feel comfortable with the mystery exposure!

Andrew took over pacing from Ouray. The climb out of town—up a dull, washboard road—was my least favorite section. Without Andrew’s engaging stories, those miles would’ve been excruciatingly monotonous. Higher up, the nearly full moon illuminated the craggy peaks, transforming the environment into something magical. By then, I couldn’t eat gels while walking anymore—the simple multitasking spiked my heart rate. Hilariously, consuming one now involved soft whimpers. Even in the moment, I saw the humor in it! Yet, despite everything, I kept drinking fluids (including liquid calories) and electrolytes never feeling dehydrated.

Hardrock Survival Tools: Consistent Training, Muscle Memory, and 5* Crew/Pacers!

Dandelion on course and still smiling during the Hardrock 100. PC: Travis McWhorter
Dandelion on course and still smiling during the Hardrock 100. PC: Travis McWhorter

As dawn broke, we climbed steep singletrack. Andrew watched carefully for signs of me sleepwalking off the trail. Though utterly exhausted, I stayed sure-footed. Nearing Kroger’s Canteen aid station, we climbed a 50-degree icy snow slope with a handline for good measure—like boot-packing a glacier with a full backcountry ski pack. Using the “rest step” from mountaineering, I reached Hardrock’s most remote aid station. Andrew remarked how impressed he was that my technical skills were intact after so many miles—a testament to years of ingrained muscle memory, even if I was moving slowly.

A brief stop at Kroger’s brought a few pierogis and broth—solid food was finally tolerable again! We descended into sun-drenched talus, making our way to Telluride. The sun felt revitalizing, but the night had taken a heavy toll. In Telluride, my legs were massaged, and I devoured solid calories, feeling almost normal again.

Andrew, continuing his marathon-long, 10,000 feet-vert pacing shift, set out with me for a remote 10-mile stretch. The first 1,000 feet of climbing went well, but then my body stopped responding. Whether from heat, steepness, or both, my pace collapsed. Concerned about heat illness, Andrew had me pause in the shade regularly and dunk my hat in cold streams. I continued forcing down revolting gels under Andrew’s watchful eye.

A Plan is Great… Until You Get Punched in the (Metaphorical) Face

The low calories overnight had triggered a cascade I couldn’t reverse. Hardrock is unforgiving: without sufficient calories, my body couldn’t regulate itself or cope with heat and altitude as I had the day before. Even though I live and train at altitude, slept in an altitude tent, and did a sauna protocol pre-race, the single issue of being unable to consume fuel overnight dominated.
The early wildfire smoke may have also contributed, but it likely wasn’t the main issue.

Negative thoughts crept in, swirling with imposter syndrome. I knew I was slipping behind, and I questioned if I belonged here. When we paused at yet another creek, I burst into tears.

Dandelion moving through an aid station. PC: Travis McWhorter
Dandelion moving through an aid station. PC: Travis McWhorter

Andrew calmly put his arm around me and asked, “Are you going to finish this?”
“Yes,” I replied through tears.

And just like that, the pity party ended. I needed the emotional release, capped with self-affirmation. I started back up the hill so fast I knocked the wind out of myself—Andrew had to grab my vest to slow me down! Though I couldn’t push hard, my mood soared and determination set in.

Pacer Swap and Into Night #2

After an eternity of climbing, we reached a blustery ridge, then descended a steep talus slope. The San Juans were relentless. At Chapman aid station, I reunited with my crew and serendipitously crossed paths with Kat, a friend from Wy’east Wonder 50M. I ate, got a brief massage, and took a five-minute nap before following Luke up the next wooded trail.

At first, I felt decent, but soon a vague calf tightness escalated into searing pain. Luke, patient but firm, reminded me I had to maintain at least 2 mph on flats and descents to finish. Inside, I thought, Are you crazy? The downs are harder than the ups—and I can’t believe I’m heading into a second night! But I didn’t argue. He was right, and I willed myself to move.

Emerging from the forest, we slogged up ever-steepening talus and scree. I was zoning in and out of consciousness but recognized Grand Swamp Pass—infamously difficult and something I’d looked forward to. I broke the remaining miles into smaller goals: “Just get to the top.” Despite calf pain, I kept moving methodically, drawing on mountaineering experience.

To DNF or Not To DNF the Hardrock 100? 

We topped Grand Swamp Pass at sunset, catching the course’s most iconic panorama. One landmark down, next goal: KT Aid Station. I don’t remember much of the descent. At KT, Luke asked what I wanted to do, saying he believed I could finish but would support any choice. The aid station volunteers kindly insisted I still had time. I wasn’t worried about cutoffs—I was evaluating my calf. My personal rule is never to quit because it’s hard or performance isn’t as hoped, but I won’t risk injury that sidelines me for weeks or puts me in danger.

Dandelion kissing the infamous rock at the Hardrock 100 finish line. PC: Travis McWhorter
Dandelion kissing the infamous rock at the Hardrock 100 finish line. PC: Travis McWhorter

I recalled my husband mentioning a knot during the earlier leg massage, which reassured me. “Let’s go one more mile,” I said—classic!

We got up and headed out. I knew Luke wouldn’t hesitate to be a drill sergeant,
so I decided to not give him a chance to bark orders! Each step was agony and every
rock I stubbed a toe on felt like a knife. I didn’t try to push the pain aside anymore.
Instead, I embraced it. A mile went by… then another. My calf didn’t get worse so I
settled on it being a wicked knot and kept trudging. The truth is, when I left KT Aid
Station I had completely committed to making it to the finish. I just couldn’t mentally handle
thinking about that monumental task yet. One mile seemed much more attainable.

The Final 5 Miles: Putnam to Kissing the [Hard]Rock!

False summits revealed more headlamps, but I accepted there’d be no reprieve until Silverton and pressed on. At the final aid station, Putnam, we quickly refilled bottles before heading into the last six miles. Normally, I follow my pacer, but in this instance, Luke stayed behind, gently herding me down the trail. Moving urgently, but knowing I’d make it within the time cutoff, we even managed some casual conversation, lightening the mood. The final miles flew by: crossing the river, traversing the hillside, climbing up the road, descending into Silverton, through the chute—and finally, I kissed the rock.

Hardrock 100 Post-Race Reflections

Did the race unfold as I’d hoped? Nope, not at all! But oddly, I’m not upset. It’s almost comical: my best 50 miles ever were in the same event as my worst 50 miles—endless comedic value! More importantly, races that don’t go to plan teach the greatest lessons. The grit, determination, and resilience I needed to finish were unmatched in any event I’ve done—including Cocodona 250. I’ll carry what I learned at Hardrock 100 into every future race and adventure. That holds far more value to me than a podium finish. Performance goals push me beyond perceived limits, but what I truly seek is self-discovery on the wilderness path of endurance—adapting and moving with the environment, building grit, remaining a student of the sport, and having a life-changing adventure. Hardrock delivered all that and more.

Dandelion Dilluvio-Scott is a multisport outdoor athlete, ultra-runner and certified coach. She is passionate about collaborating with driven athletes who love to explore, train and play outside.