Events/Mammoth Tuff

Mammoth Tuff

Gravel
Date
Sun, 13 Jun 2027
Venue
Mammoth Lakes, California, USA
Countdown
June
Distance
161km
Total climb
2,286m

The whole course sits at 2,400m (8,000ft) and climbs higher. Every effort is in thin air, so Mammoth Tuff is far harder than its numbers admit.

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The course

The route

A single-day gravel race on the volcanic pumice and dusty forest roads around Mammoth Lakes, with 2,286m of sustained high-country climbing across the 161km route. The whole course sits above 2,400m, so the altitude, not the gradient, is what caps the effort.

Weather

Mid-June, Mammoth Lakes

21°CTypical high
5°CTypical low
-6°CColdest in 20 years
6%Days with rain

Highs around 21°C and lows around 5°C, but it has dropped to -6°C. Rain on 6% of days. Pack for the cold end, not the average.

NASA POWER data, 2006-2025, the week either side of race day
2025 results

Who finishes, and how

#RiderTimeAvg speed
01jennifer TAVE05:20:05.78030.2 km/h
02rachel MCBRIDE05:45:45.34327.9 km/h
03sofia SCHUGAR05:46:37.89727.9 km/h
15
Women finishers
6:42:11
Median time
24.0 km/h
Median speed
Women · 2025 results, as published by the organiser.
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Training

Training for the Mammoth Tuff

We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.

Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.

GarminWahooPolarHammerheadIntervals.icu
What the day throws at you
Typical sessions
Altitude above 2,400m (8,000ft) that thins the air on every single climb
2,286m of sustained high-country climbing, not short punchy hits
Loose volcanic pumice that eats traction and needs a confident, settled line
A dry Sierra day of 6 to 9+ hours that raises fluid losses and blunts appetite
What your weeks look like
Typical sessions
A progressive long gravel ride building from 3hr toward a 6 to 8hr peak
Event-pace long rides of 5 to 8hr rehearsing your dry-air fuelling and hydration
Sweet spot gravel climbs, 2 to 3x 20min at 88 to 93% FTP, for durable climbing power
Loose-surface handling work plus, for sea-level riders, altitude exposure in the final weeks
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
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