15-second microbursts every 45 seconds — the relentless terrain-driven surges of gravel.
Leadville Trail 100 MTB's Singletrack, Gravel roads forces constant power changes. Surge over the rough stuff, settle on the smooth, repeat for 100 miles.
STRUCTURE
10min warm-up → 2 sets of 8×(15sec @ 150% FTP / 45sec @ 65% FTP) / 5min between sets → cool-down
EXECUTION
Every 60 seconds, EXPLODE. 15 seconds of maximum power — like hitting a rock garden, a short kicker, or responding to an attack. Then recover just enough to do it again. And again. This is what technical gravel terrain actually feels like: relentless microbursts with incomplete recovery.
POWER
Bursts: 140–160% FTP | Recovery: 60–65% FTP
CADENCE
Bursts: 100–130rpm (explosive) | Recovery: 85–90rpm
POSITION
Standing for every burst. Seated for recovery.
RPE
Bursts: 9–10 | Recovery: 3–4 | Cumulative: devastating
RACE-SPECIFIC: LEADVILLE TRAIL 100 MTB
HEAT PREP August in Leadville, Colorado can bring heat. Complete 3–4 heat exposure sessions in the final 2 weeks before Leadville Trail 100 MTB. Increase sodium intake 48 hours before race day.
NUTRITION Target 60–80g carbs/hour for Leadville Trail 100 MTB’s 100 miles. Start fueling within the first 30 minutes — early fueling prevents late-race collapse. Bonking at mile 60 is a nutrition failure, not a fitness failure.
ALTITUDE Leadville Trail 100 MTB with 11,900ft of climbing, much of it above 8,000ft demands altitude preparation. Arrive 5–7 days early for acclimatization. Expect 5–15% power reduction at altitude. Increase iron intake 4 weeks out. Hydrate aggressively — altitude increases fluid loss by 20–40%. Starts at 10,200 feet elevation; Columbine summit at 12,600 feet.
TERRAIN Highly technical terrain at Leadville Trail 100 MTB demands practice on similar surfaces. Ride mixed mountain terrain—singletrack, fire roads, pavement at race-day cadence weekly. Expect: singletrack, gravel roads, paved sections. Practice cornering, descending, and power delivery on unstable surfaces. Dial in tire pressure before race week — 5 PSI wrong costs you 15+ minutes over 100 miles.