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Desert RATS Trail Running Festival by UTMB
UltraUnited StatesColorado

Desert RATS Trail Running Festival by UTMB2027

09.04 – 11.04.2027Fruita (United States)Registration open
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Pacing, fueling and crew sheet for the course you pick

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4 courses · 9–100 km · up to 2’050 m D+

4 courses

  1. 9km

    200 m D+

    239 m D-

    avg 2%

    10K

    11.04. · 5 aid stations

    No index
    GPX

  2. 21km

    700 m D+

    654 m D-

    avg 3%

    21K

    11.04. · 5 aid stations

    UTMB Index 20K1
    GPX

  3. 48km

    1’050 m D+

    1’363 m D-

    avg 2%

    50K

    10.04. · 8 aid stations

    UTMB Index 50K2
    GPX

  4. 100km

    2’050 m D+

    2’258 m D-

    avg 2%

    100K

    10.04. · 14 aid stations

    UTMB Index 100K3
    GPX

Course analysis

100 km2’050 m D+

121effort kmⓘ100 km on the map · feels like 121 km
D+
2’050 m
D−
2’258 m
Max alt.
1’644 m
Steepest
8%

Segments

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Elevation profile: 100K

1’347 m — 1’644 m

Feels like these

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on Desert RATS Trail Running Festival by UTMB, in one roadbook.

Includes this race's official aid stations and cutoff times.

Build your race plan →

The race

A trail running festival weekend in the desert with four unique distances, three days of racing, and views of the Colorado River.

Where to stay

Find a place to stay near Fruita for the race.

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