Performance Lab · Race Strategy

The Leadville Trail 100 MTB Strategy

Q: How many calories will I burn at Leadville 100?

Roughly 8,000 to 12,000 calories depending on body weight, finish time, and altitude exposure. A 12-hour Leadville for a 170-pound rider burns approximately 10,000 calories. Practical race-day fueling targets 250 to 400 calories per hour, so 3,000 to 4,800 calories absorbed during the race. The 5,000+ calorie deficit is normal. Glycogen depletion is the cap.

Q: Why is altitude acclimatization so important for Leadville?

A sea-level athlete loses 15 to 25 percent of VO2 max at 10,000 ft after the first 24-48 hours. Full hematological adaptation takes 3+ weeks of altitude exposure. Athletes who arrive 7 days early lose less time on the climbs. Athletes who arrive race-eve from sea level pay the maximum altitude penalty. If you cannot arrive early, the supplement stack (BRP for nitric oxide, E360 for VO2 max support) helps but does not replace acclimatization.

Q: How should I pace the Columbine Mine climb?

Columbine is 10 miles of climbing with the last 2 miles above tree line at 12,000+ ft. Heart rate will pin at altitude regardless of effort, so use POWER (if you have a meter) or PERCEIVED EFFORT, not HR. Target 80 to 85 percent of FTP for the climb. Take a caffeinated gel 15 minutes before the climb starts. Most riders go too hard on the lower slopes and crawl the final mile. Steady-state pacing wins the climb.

Q: How dangerous is Powerline at mile 80?

Powerline is the race-killer climb. By mile 80 you have been racing 7+ hours with most of your glycogen burned. The climb is steep and chewed up. Most riders walk sections. Strong riders ride it but at a power they would not consider hard on a fresh ride. The trick is: do not arrive at Powerline depleted. Eat real food (sandwich, rice cake) at Pipeline return at mile 76 BEFORE Powerline starts.

Q: Should I use Beetroot Pro and Endurance360 together for Leadville?

Yes. Endurance360 is especially valuable at altitude because cordyceps mushroom supports VO2 max maintenance under hypoxic stress. Start Endurance360 8 to 12 weeks before race day. Beetroot Pro is the acute race-week product for the 5-day nitrate loading protocol. The Early Breakaway Pack bundles both.

Q: When should I take caffeine during Leadville?

First caffeine dose at mile 27 (Pipeline aid station, ~3 hours in). Second dose 15 min before Columbine climb at mile 40. Third dose at Twin Lakes return at mile 60. Fourth dose before Powerline at mile 76. Caffeine helps with cognitive sharpness at altitude where decision-making degrades faster than at sea level. Practice the exact timing in long training rides.

Q: What is the Leadville cutoff schedule?

Cutoffs apply at each major aid station: Twin Lakes outbound (mile 40) at 10:30 AM, Columbine summit (mile 50) at 1:00 PM, Twin Lakes return (mile 60) at 3:30 PM, Pipeline return (mile 76) at 6:00 PM, finish at 6:30 PM (12 hours from start). Missing any cutoff means race over. Conservative early pacing is the defense; chasing cutoffs late in the day with depleted glycogen does not end well.

100 Miles at 10,000+ Feet

100 miles of mountain bike racing at 10,000 to 12,500 feet of elevation, with 14,000 feet of climbing. Columbine Mine peaks the course at 12,424 ft. Powerline at mile 80 wrecks the strongest legs. A buckle requires sub-12 hours. The big buckle requires sub-9. The supplement and pacing protocol is built around the altitude.

Countdown loading

Saturday, August 8, 2026 · 6:30 AM MDT

103 mi

Distance

~14,000 ft

Elevation Gain

12,424 ft

Columbine Mine

~10,000

Calories Burned

10,152 ft

Start Elevation

~50%

Sub-12 Buckle

Course Profile

103 miles MTB, 14,000 ft of climbing

Key Peak / FinishNotable PointReference Marker

Free Tool · Race Day Pacing

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The Bottom Line

Leadville Is Won by Lung Capacity and Pacing Discipline

Altitude is the dominant variable. Sea-level athletes lose 15 to 25 percent of VO2 max at 10,000 ft and another 10 to 15 percent by the Columbine summit at 12,424 ft. Pacing for that altitude penalty is the difference between a sub-12 buckle and a 14-hour death march. Build the nitric oxide pool to spare oxygen on every climb.

E360 Chronic Load

BRP Acute Load

103mi

Race Day Peak

The 4-Week Countdown

Train into shape. Rest into fitness. The final 4 weeks consolidate fitness; they do not build new capacity.

4 Weeks Out

Peak Training Block

Longest training ride 80-90 percent of race distance
Hard climbing intervals 2x per week
High-volume base week with race-pace efforts
Practice race-day fueling on every long ride: same gels, bottles, bars
Start Endurance360 if you have not already

2 Weeks Out

Taper Week One

Cut volume 30-40 percent; maintain some intensity
1-2 race-pace efforts early week
Continue Endurance360 daily
No new bike fit changes, no new gear

1 Week Out

Race Week

Cut volume 50-60 percent; one short shake-out ride day before
Begin 5-day Beetroot Pro loading
Three Day Rule: complex carbs in, fibrous food out
Two Day Hydration: clear urine morning before

Race Day

Race Morning

Beetroot Pro 60-90 min before start
No antibacterial mouthwash
Real food breakfast 2-3 hours before
Bottles prepped, pockets loaded, second BRP dose packed for mid-race

The Nutrition Timeline

Race-day nutrition is decided in the weeks before, not in the saddle. Calibrated to Leadville Trail 100 MTB.

Six Weeks Out: Chronic Loading

Start daily Endurance360. Beta-alanine, creatine, and cordyceps require 4-6 weeks to saturate. Start now or skip the benefit.

Five Days Out: Nitrate Loading

Altitude amplifies BRP value: nitric oxide compensates for altitude-suppressed eNOS activity. Plasma nitrate peaks for Columbine climb. Take 2 servings of Beetroot Pro daily. Avoid antibacterial mouthwash all week.

Three Days Out: The Carb Load

Carb loading at altitude is even more critical: glycogen burns faster at altitude. Aim for 10-12 g carb per kg body weight Wed through Friday. Complex carbs in. Fibrous food out.

Two Days Out: Hydration Lock-In

Altitude dehydration is 2x sea-level rate. Hydration starts Wednesday. Clear urine Thursday and Friday is the target.

Saturday, August 8, 2026 · 6:30 AM MDT

Race Day: Execute

250-400 cal/hr from gels + real food. Caffeine staged at Pipeline, Columbine, Twin Lakes return, Powerline. Second BRP at Twin Lakes return for 10+ hour finishers.

Course Segments

Leadville breaks into 6 segments with 4 named climbs. Each one demands a different effort and fueling response.

1. Start to St Kevin's (Miles 0-12)

Distance

12 mi

Elevation

10,152 → 10,700 ft

Profile

Neutral rollout, then the first sustained climb. Crowded singletrack.

Fueling Strategy

Sip water from the gun. First gel at mile 8. Heart rate will be elevated from altitude alone; do not chase it.

2. Sugarloaf to Pipeline (Miles 12-27)

Distance

15 mi

Elevation

10,700 → 9,700 ft (rolling descents)

Profile

Technical descents on Sugarloaf. Fast doubletrack into Pipeline aid station.

Fueling Strategy

Drink + gel at every aid station. Cooler descent gives a chance to eat solid food (waffle, half banana).

3. Pipeline to Twin Lakes (Miles 27-40)

Distance

13 mi

Elevation

9,700 → 9,200 ft (gradual descent)

Profile

Fast doubletrack and dirt road. Save legs for Columbine.

Fueling Strategy

Eat real food at Pipeline crew bag (sandwich quarters, rice cake). Full bottle refills. This is the calm before Columbine.

KOM

4. Columbine Mine Climb (Miles 40-50)

Distance

10 mi climb

Elevation

9,200 → 12,424 ft (3,200 ft of climbing)

Profile

Sustained 60-90 min climb. Last 2 miles above tree line at 12,000+ ft. The hardest sustained effort of the day.

Fueling Strategy

Caffeinated gel 15 min before the climb starts. Sip water continuously. Heart rate will pin at altitude regardless of effort.

5. Columbine Descent to Twin Lakes (Miles 50-60)

Distance

10 mi

Elevation

12,424 → 9,200 ft (technical descent)

Profile

Technical loose rock descent at altitude. Hands and forearms cramp from braking.

Fueling Strategy

Food + caffeine at Twin Lakes return. Crew bag with sandwich + Coke + extra bottles. Second BRP dose here for 10+ hour finishers.

6. Pipeline Return to Powerline to Finish (Miles 60-103)

Distance

43 mi

Elevation

Two more climbs + final descent to Leadville

Profile

Powerline at mile 80 is the day-killer climb. Strong riders walk it; weak riders cry on it. Final descent to Leadville is the longest part of the day mentally.

Fueling Strategy

Caffeine before Powerline. Save one solid food for mile 95. Final 5 miles are mental, not physical.

The Leadville Stack

Two products. Different mechanisms. Mapped to the chronic and acute demands of Leadville Trail 100 MTB.

Acute · Race Week

Beetroot Pro

Patented betaine nitrate (NO3-T) delivering 300mg+ standardized dietary nitrate per serving. Reduces oxygen cost at sustained effort by 1 to 3% in published research. The 5-day pre-race loading protocol peaks nitric oxide for Leadville's hardest sections.

Shop Beetroot Pro

Chronic · 6 Weeks

Endurance360

Beta-alanine for lactic acid buffering, creatine for repeated hard efforts, cordyceps for VO2 max support. Beta-alanine requires 4 to 6 weeks of consistent loading. Starting at 6 weeks before Leadville is the deadline, not the suggestion.

Shop Endurance360

The Early Breakaway Pack bundles both products at a reduced per-product price. For Leadville athletes starting Endurance360 at 6 weeks out and Beetroot Pro at 5 days out, the bundle covers the full race week with one purchase.

Shop the MTB Stack

Target Finish Times

Realistic target windows for Leadville Trail 100 MTB by athlete archetype. Use these to set your pacing.

Big Buckle (Sub-9)

8:00 to 9:00

Front of the field, full racing. Requires sub-3 hour Columbine round trip and minimal aid station time.

Buckle (Sub-12)

9:00 to 12:00

~50% of finishers earn a buckle. The target for most experienced Leadville riders.

First-Time Finisher

11:00 to 13:00

Realistic finish for a first attempt with proper altitude acclimatization (minimum 7 days at altitude pre-race).

Cutoff-Aware

13:00+

Course cutoffs apply at each aid station. Sub-cutoff finish gives a finisher medal even without a buckle.

Veteran Notes

Lessons from past Leadville Trail 100 MTB finishers that no training plan teaches.

Heart rate pins, power tells the truth

At 10,000-12,000 ft, heart rate is elevated regardless of effort. Use power (if you have a meter) or perceived effort, not HR, to pace climbs. Pin yourself by HR and you blow up on Columbine.

Mouthwash kills the protocol

Antibacterial mouthwash race morning kills the oral bacteria that convert dietary nitrate to nitrite. A 5-day loading protocol can be undone by one mouthwash rinse. Plain water only.

Eat real food before Powerline

Powerline at mile 80 is the race-killer. Most riders arrive depleted and walk. Eat a sandwich quarter + rice cake at Pipeline return at mile 76 BEFORE the climb starts. The strongest riders fuel before the hardest sections.

Arrive 7+ days early or stack hard

Sea-level athletes who arrive race-eve lose 20-25% VO2 max to altitude. 7+ days at altitude before race day cuts the penalty in half. If you cannot arrive early, BRP + E360 stacking is your best defense.

Columbine summit is colder than you think

12,424 ft summit is often 35-50F even in August. Pack a wind shell in your jersey pocket from Twin Lakes. The 8-minute descent off the summit in a wet skinsuit ruins many races.

Walk the technical descents if needed

Crashing on the Columbine descent at altitude with fatigue is how Leadville races end in DNFs or worse. If a section feels above your skill level, walk it. 30 seconds walking beats 3 weeks of recovery.

Leadville Questions

When should I start nitrate loading for Leadville 100?+

Start a 5-day Beetroot Pro loading protocol on Monday before the Saturday race. Take 2 servings daily Mon-Fri, the race-eve dose Friday with dinner, and the race-morning dose 60 to 90 minutes before the 6:30 AM start. Altitude amplifies the value of dietary nitrate because the oxygen cost reduction (1 to 3%) compounds with the altitude oxygen penalty (15 to 25% at 10,000 ft). For 10+ hour finishers, take a SECOND serving at the Twin Lakes return aid station around mile 60.

How does altitude change my Beetroot Pro protocol?+

Altitude makes nitric oxide MORE valuable, not less. Endothelial nitric oxide synthase (eNOS) activity is partly oxygen-dependent, so endogenous NO production drops at altitude. Dietary nitrate provides an alternative pathway. Athletes who arrive at altitude < 7 days before race day benefit the most from the loading protocol; long-acclimatized athletes still benefit but the marginal effect is smaller.

How many calories will I burn at Leadville 100?+

Roughly 8,000 to 12,000 calories depending on body weight, finish time, and altitude exposure. A 12-hour Leadville for a 170-pound rider burns approximately 10,000 calories. Practical race-day fueling targets 250 to 400 calories per hour, so 3,000 to 4,800 calories absorbed during the race. The 5,000+ calorie deficit is normal. Glycogen depletion is the cap.

Why is altitude acclimatization so important for Leadville?+

A sea-level athlete loses 15 to 25 percent of VO2 max at 10,000 ft after the first 24-48 hours. Full hematological adaptation takes 3+ weeks of altitude exposure. Athletes who arrive 7 days early lose less time on the climbs. Athletes who arrive race-eve from sea level pay the maximum altitude penalty. If you cannot arrive early, the supplement stack (BRP for nitric oxide, E360 for VO2 max support) helps but does not replace acclimatization.

How should I pace the Columbine Mine climb?+

Columbine is 10 miles of climbing with the last 2 miles above tree line at 12,000+ ft. Heart rate will pin at altitude regardless of effort, so use POWER (if you have a meter) or PERCEIVED EFFORT, not HR. Target 80 to 85 percent of FTP for the climb. Take a caffeinated gel 15 minutes before the climb starts. Most riders go too hard on the lower slopes and crawl the final mile. Steady-state pacing wins the climb.

How dangerous is Powerline at mile 80?+

Powerline is the race-killer climb. By mile 80 you have been racing 7+ hours with most of your glycogen burned. The climb is steep and chewed up. Most riders walk sections. Strong riders ride it but at a power they would not consider hard on a fresh ride. The trick is: do not arrive at Powerline depleted. Eat real food (sandwich, rice cake) at Pipeline return at mile 76 BEFORE Powerline starts.

Should I use Beetroot Pro and Endurance360 together for Leadville?+

Yes. Endurance360 is especially valuable at altitude because cordyceps mushroom supports VO2 max maintenance under hypoxic stress. Start Endurance360 8 to 12 weeks before race day. Beetroot Pro is the acute race-week product for the 5-day nitrate loading protocol. The Early Breakaway Pack bundles both.

When should I take caffeine during Leadville?+

First caffeine dose at mile 27 (Pipeline aid station, ~3 hours in). Second dose 15 min before Columbine climb at mile 40. Third dose at Twin Lakes return at mile 60. Fourth dose before Powerline at mile 76. Caffeine helps with cognitive sharpness at altitude where decision-making degrades faster than at sea level. Practice the exact timing in long training rides.

What is the Leadville cutoff schedule?+

Cutoffs apply at each major aid station: Twin Lakes outbound (mile 40) at 10:30 AM, Columbine summit (mile 50) at 1:00 PM, Twin Lakes return (mile 60) at 3:30 PM, Pipeline return (mile 76) at 6:00 PM, finish at 6:30 PM (12 hours from start). Missing any cutoff means race over. Conservative early pacing is the defense; chasing cutoffs late in the day with depleted glycogen does not end well.

Saturday, August 8, 2026 · 6:30 AM MDT

Ready for Leadville Trail 100 MTB?

Six weeks of Endurance360 plus five days of Beetroot Pro is the protocol that converts months of training into a strong finish. Stack the system, follow the plan, and arrive at the start line ready.

103

Miles MTB

14,000ft

Total Climbing

~10k

Calories Burned

Shop the Stack Read the Full Loading Protocol

This is an independent training and nutrition resource for Leadville Trail 100 MTB athletes and is not affiliated with or endorsed by the race organization.

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.