Mammoth TUFF (2026) | Course Elevation & Registration
gravel ✓ Verified Active Listing

Mammoth TUFF

📅 Sep 19, 2026 📍 Mammoth Lakes, CA
Official Registration Page ↗ Official Event Website ↗ 📅 Google Calendar 📥 Apple / Outlook (.ics)

⚡ Dial in Your Target Wattage & Pacing for Mammoth TUFF

Use Threshold Cycling's Cycling Pace & Wattage Calculator to calculate exact FTP percentages, nutrition requirements, and estimated completion times based on course elevation and distance.

Calculate Target Wattage ⚡

🧬 Course DNA & Technical Intel

📏 Primary Distance
100 mi
🛞 Recommended Tire
38mm – 42mm Tubeless
🚴 Discipline
gravel

🏁 Course Distance Options

S WOMEN 18&Under
📏 40 mi
S WOMEN 19-29
📏 40 mi
S WOMEN 30-39
📏 40 mi
S WOMEN 40-49
📏 40 mi
S WOMEN 50-59
📏 40 mi
S WOMEN 60+
📏 40 mi
S E-BIKE
📏 40 mi
S MEN 18&Under
📏 40 mi
S MEN 19-29
📏 40 mi
S MEN 30-39
📏 40 mi
S MEN 40-49
📏 40 mi
S MEN 50-59
📏 40 mi
S MEN 60+
📏 40 mi
S TANDEM
📏 40 mi
S Non-Binary / Open
📏 40 mi
S Adaptive TUFF - Rider
📏 40 mi
S Adaptive TUFF - Support
📏 40 mi
M WOMEN 16-29
📏 75 mi
M WOMEN 30-39
📏 75 mi
M WOMEN 40-49
📏 75 mi
M WOMEN 50-54 UCI Qualifier
📏 75 mi
M WOMEN 55-59 UCI Qualifier
📏 75 mi
M WOMEN 60-64 UCI Qualifier
📏 75 mi
M WOMEN 65-69 UCI Qualifier
📏 75 mi
M WOMEN 70-74 UCI Qualifier
📏 75 mi
M WOMEN 75-79 UCI Qualifier
📏 75 mi
M WOMEN 80-84 UCI Qualifier
📏 75 mi
M WOMEN FAT BIKE
📏 75 mi
M WOMEN SINGLE SPEED
📏 75 mi
M MEN 16-29
📏 75 mi
M MEN 30-39
📏 75 mi
M MEN 40-49
📏 75 mi
M MEN 50-54 UCI Qualifier
📏 75 mi
M MEN 55-59 UCI Qualifier
📏 75 mi
M MEN 60-64 UCI Qualifier
📏 75 mi
M MEN 65-69 UCI Qualifier
📏 75 mi
M MEN 70-74 UCI Qualifier
📏 75 mi
M MEN 75-79 UCI Qualifier
📏 75 mi
M MEN 80-84 UCI Qualifier
📏 75 mi
M MEN FAT BIKE
📏 75 mi
M MEN SINGLE SPEED
📏 75 mi
M TANDEM
📏 75 mi
M Non-Binary / Open
📏 75 mi
M - Adaptive TUFF
📏 75 mi
L WOMEN ELITE
📏 100 mi
L WOMEN 16-18
📏 100 mi
L WOMEN 19-34 UCI Qualifier
📏 100 mi
L WOMEN 35-39 UCI Qualifier
📏 100 mi
L WOMEN 40-44 UCI Qualifier
📏 100 mi
L WOMEN 45-49 UCI Qualifier
📏 100 mi
L WOMEN 50-59
📏 100 mi
L WOMEN 60+
📏 100 mi
L WOMEN FAT BIKE
📏 100 mi
L WOMEN SINGLE SPEED
📏 100 mi
L MEN ELITE
📏 100 mi
L MEN 16-18
📏 100 mi
L MEN 19-34 UCI Qualifier
📏 100 mi
L MEN 35-39 UCI Qualifier
📏 100 mi
L MEN 40-44 UCI Qualifier
📏 100 mi
L MEN 45-49 UCI Qualifier
📏 100 mi
L MEN 50-59
📏 100 mi
L MEN 60+
📏 100 mi
L MEN FAT BIKE
📏 100 mi
L MEN SINGLE SPEED
📏 100 mi
L TANDEM
📏 100 mi
L Non-Binary / Open
📏 100 mi
Adaptive TUFF - Rider
📏 23 mi
Adaptive TUFF - Support
📏 23 mi

About Mammoth TUFF

Official registered gravel event in Mammoth Lakes, CA. Direct registration on BikeReg.
Are you the race director or promoter of this event? Claim this Event Listing ↗

⚙️ Recommended Pro Hardware for Mammoth TUFF

Top-rated power meters, radar, and GPS computers curated by Threshold Cycling.

Dual-Sided SPD Accuracy

Favero Assioma Pro MX-2 Power Meter Pedals

$759.00

±1% real-world power accuracy, seamless Bluetooth/ANT+ connectivity, and full rock strike durability designed specifically for gravel epics.

View Product Specs ↗
Backcountry Safety

Garmin Varia RTL515 Radar Tail Light

$199.99

Detects approaching vehicles up to 153 yards away with visual and audible cockpit alerts on your GPS computer. Vital for remote rural gravel roads.

View Product Specs ↗

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