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⏵ Course guide · Nevada ultra

The Bootleg Boogie Course Guide

The Bootleg Boogie is a desert loop ultra in Bootleg Canyon just outside Boulder City, Nevada, near Lake Mead and the lights of Las Vegas. You run a 12.5-mile singletrack loop on repeat, eight times for the hundred and four for the fifty, on punchy but fair climbs in cool Mojave winter weather. I will walk you through the loop first, then give you a pacing and fueling plan built for the repetition, the dry air, and the night. There are free calculators along the way to dial in your own numbers.

⏵ At a glance

The Bootleg Boogie quick facts

Date
Late January / early February (2027 edition: Sat, Jan 30)
Location
Bootleg Canyon, Boulder City, Nevada, near Lake Mead and Las Vegas
Distances
100 miles, 50 miles, and a Half Marathon
Elevation gain
100M: about 15,000 ft · 50M: about 7,500 ft · about 1,875 ft per 12.5-mile loop
Start
100M 6:30 AM · 50M 7:00 AM · Half 8:00 AM
Cutoff
100M: 30 hours (early start after 12:00 AM with RD approval)
Qualifier
No Western States, Hardrock, or UTMB Running Stones status listed by the race

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

The course: where The Bootleg Boogie is won and lost

Everything is built on one 12.5-mile loop in Bootleg Canyon, over 90 percent rolling singletrack with about 1,875 feet of climb and the same descent each lap. The hundred runs it eight times, the fifty four, the Half once. Three aid stations sit on the loop: the start/finish HQ, then two more out on the trail, so you are never far from help or from your own drop bag.

The loop: punchy, fair, and runnable

The loop itself is honest. Steadily rolling singletrack with a tough but runnable grind up Black Mountain on each lap, no single monster climb, and no reckless plunging descent that blows your quads in one shot. That is the good news and also the trap. Because nothing on the loop feels hard early, it is very easy to run the first couple of laps too fast and convince yourself this is going to be a cruise. It is not. Those punchy little climbs you barely notice on lap one feel like real walls by lap five or six, so run the early loops well within yourself.

The footing is classic Mojave: hardpack, loose rock, and a bit of sand, technical in spots but never out to get you. Quick feet and a little attention keep you upright, especially at night when the same rock you have run past six times is suddenly easy to clip when you are tired.

The repetition: this is a mental race

Here is the real crux of the Bootleg Boogie, and it is not in the elevation profile. You run the same 12.5 miles over and over, and the hundred asks you to do it eight times. By the middle laps you know every rock, every rise, every false flat, and that familiarity can grind you down as much as any climb. The runners who do well break the day into laps instead of staring at the whole hundred. One loop at a time, reset at HQ, go again.

Use the loop format on purpose. Pass your crew and your drop bag every 12.5 miles, so set tiny goals lap to lap, change one thing that is bugging you each time through, and have a plan for the low points before they arrive at 2 AM. The lights of the Las Vegas Strip out in the dark are a genuinely good thing to chase when your head starts to go.

Aid, crew, drop bags, and the night

Each loop has three aid stations, the start/finish HQ plus two out on the trail, so you hit aid several times a lap and the longest dry gap is short by ultra standards. The start/finish is the big one: it is where your crew waits and where you stage drop bags, and because you come through it every single lap you can run a very light kit and reload exactly what you need each time. That is a huge advantage over a point-to-point race, so use it.

Then plan for the night and the cold. The Mojave is kind by day in late January, often close to ideal running weather, but the dry air pulls fluid out of you faster than the temperature suggests, and the desert can swing genuinely cold once the sun drops. Stage warm layers, a working headlamp and backup, and night calories in your start/finish drop bag, and if you are running the hundred, this is exactly where a pacer earns their keep through the dark, sleepy hours.

Pacing strategy for a rolling desert loop

With about 1,875 feet of gain per loop and no single big climb, the Bootleg Boogie is about even effort and patience across a lot of laps, not chasing a pace chart. The loop gives you clean, repeatable splits, so use them.

Pace the loop by effort, then bank consistency

The rolling profile makes it tempting to push the runnable bits, but the day is decided by how even your effort stays across every lap, not how fast loop one is. Hold a steady, conversational output on the climbs and hike the steep pinches without guilt. Because the loop repeats, your first lap or two becomes a perfect reference: note your honest, easy split, then defend it. A grade-adjusted pace turns your flat fitness into sane climbing and descending targets so you stop leaking time and energy on the early loops you will want back at the end.

Build a loop-aware finish prediction

Do not guess your Bootleg finish off a road time. The repeated 1,875 feet of climb per lap, the desert dryness, and the natural late-race slowdown all add real minutes. A vert-aware finish prediction that accounts for this course gives you a realistic window and an honest per-loop pace to aim for, so you can plan a normal fade into the back half and still know you are safely inside the 30 hour cutoff instead of doing nervous math at lap six.

⏵ Free tools to pace this course

Fueling strategy for a long, dry desert day

The hundred is a full day and night of effort, and the fifty is most of one, in dry Mojave air that hides how much you are sweating. That makes carbohydrate, sodium, and fluid every bit as decisive as fitness, and the loop makes the logistics easy.

Carbs: steady, trained, and reset each lap

For an effort this long, aim for around 60 to 90 grams of carbohydrate per hour and only push the high end if your gut is trained for it. The big advantage here is the loop: you pass your drop bag at the start/finish every 12.5 miles, so you can stage exactly the food you want and reset your fueling each lap instead of carrying a whole day of calories. Use that to keep intake steady and easy to get down, especially overnight when your appetite disappears but your engine still needs the fuel. Rehearse your exact hourly carb number on long runs so 80-plus grams an hour feels normal, not like a race-day experiment.

Sodium and fluid: respect the dry air

The Mojave will quietly dehydrate you. The cool winter temperature makes it feel like you barely need to drink, but the dry air pulls a lot of fluid and sodium out of you, so do not under-drink just because you are not hot. Lean toward the high end on sodium, often around 500 to 700 milligrams per liter of fluid, and more if you are a heavy or salty sweater. Carry enough between the aid stations on each loop to stay topped up, and weigh yourself before and after a long training run to find your real sweat rate, then build the plan around your own number rather than a guess.

⏵ Build your fueling plan

Get a carb, sodium, fluid, and caffeine plan per hour built for your weight, your goal time, and the dry Bootleg Canyon desert 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 Bootleg Canyon loop profile, and your projected splits. Summit Line reads your real training, builds a plan for the repeated climbing and the night, and rehearses your fueling so race day is something you execute, not guess at.

Start free →Explore the demo

The Bootleg Boogie FAQ

How hard is The Bootleg Boogie?

It depends a lot on the distance, but the 100 is a real desert 100 miler, not a cupcake. You run a 12.5-mile loop over and over, eight times for the hundred, on 90 percent-plus singletrack with about 1,875 feet of climb per lap, which stacks to roughly 15,000 feet for the full hundred. There is no single monster climb and no reckless descent, so the course is punchy but fair, and the real difficulty is the relentless repetition, the desert dryness, and a full night out there with a 30 hour clock. The 50 miler runs the same loop four times for about 7,500 feet, and the Half is one lap. Smart, even pacing and disciplined fueling matter way more here than raw speed.

How much climbing is in The Bootleg Boogie?

Each 12.5-mile loop carries about 1,875 feet of climbing and the same amount of descent, and you just multiply that by your laps. The 100 miler is eight loops for roughly 15,000 feet of total gain, and the 50 miler is four loops for about 7,500 feet. The climbing is rolling and steady rather than one big wall, with a tough but runnable grind up Black Mountain on each lap and no severe descents to wreck your quads in one shot. It adds up though, so by lap five or six those punchy little climbs you barely noticed early on start to feel a lot bigger.

How should I fuel for The Bootleg Boogie?

Fuel it as a long, dry desert effort, and use the loop format to your advantage. For most runners that means roughly 60 to 90 grams of carbohydrate per hour, leaning to the high end if your gut is trained for it, and sodium that climbs with how much you sweat in the dry air, often the high end of 300 to 700 mg per liter of fluid. Because you pass your own drop bag at the start/finish every 12.5 miles, you can stage exactly what you want and reset each lap instead of carrying a whole day of food. Carry enough between the three aid stations on each loop so you never run dry, and run your own numbers for your weight, goal time, and the forecast with the free ultra fueling calculator.

What are the cutoff times for The Bootleg Boogie?

The 100 mile cutoff is 30 hours, which is generous for a hundred and gives most prepared runners real room to walk a lot of the back half and still finish. There is an early start option after midnight on race day with race director approval if you want a bigger buffer. Confirm the exact per-distance and any per-loop cutoffs in the current race-day details before you start, since the loop format means the timing crew is watching your lap splits.

What is the terrain and weather like at Bootleg Canyon?

The loop is over 90 percent rolling desert singletrack in Bootleg Canyon, in the Eldorado Mountains just outside Boulder City near Lake Mead. The footing is the usual Mojave mix of hardpack, loose rock, and a little sand, technical in spots but never reckless, and the climbs and descents are punchy rather than brutal. Late January and early February in the Mojave is the kind thing about this race: cool and often ideal for running by day, but it can swing cold at night and the desert air is very dry, so you lose more fluid than the temperature suggests. At night you get the lights of the Las Vegas Strip off in the distance, which is a strange and great thing to chase on a long loop.

Is The Bootleg Boogie a good first 100 miler?

It is actually one of the friendlier places to try a first hundred. The loop format means you are never far from your crew, your drop bag, and a warm bailout, which is a huge mental and logistical safety net when things get dark at 2 AM. The climbing is rolling and fair, the 30 hour cutoff is forgiving, and the cool winter weather is far easier than a summer mountain race. The flip side is the mental grind of running the same 12.5 miles eight times, so the people who do well here break the day into laps, lean on their crew, and have a plan for the low points instead of being surprised by them.

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.