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IV ATOM ISASA TRAIL XTREM
TrailSpainLa Rioja

IV ATOM ISASA TRAIL XTREM 2027

06.03 – 07.03.2027Arnedo (Spain)
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3 courses · 16–44.5 km9.9–27.7 mi · up to 2’500 m D+up to 8’202 ft D+

At a glance

IV ATOM ISASA TRAIL XTREM 2027 takes place from Saturday 6 to Sunday 7 March 2027 in Arnedo (La Rioja, Spain). Three distances to choose from: 16, 22 and 44.5 km.

Longest course: ATOM ISASA TRAIL XTREM | Maratón 44.5 km, 44.5 km with 2’500 m D+ (56 m per km: mountain terrain).

On Kliva, plan your pacing and nutrition for free, then send the plan to your watch.

The ATOM ISASA TRAIL XTREM will take place on the weekend of March 6 and 7, 2027 in Arnedo, La Rioja. The event will bring together runners, companions, volunteers and mountain lovers around the…
From the organiser

3 courses

  1. 16km9.9mi

    350 m D+1’148 ft D+

    379 m D-1’243 ft D-

    avg 2%

    CORTA
    No index
    GPX
  2. 22km13.7mi

    950 m D+3’117 ft D+

    970 m D-3’182 ft D-

    avg 4%

    ATOM ISASA TRAIL XTREM | Media Maratón
    UTMB Index 20K
    GPX
  3. 44.5km27.7mi

    2’500 m D+8’202 ft D+

    2’546 m D-8’353 ft D-

    avg 6%

    ATOM ISASA TRAIL XTREM | Maratón
    ITRA 2UTMB Index 50K
    GPX

Course analysis

44.5 km27.7 mi2’500 m D+8’202 ft D+

70effort kmⓘ44.5 km on the map · feels like 70 km27.7 mi on the map · feels like 70 km
D+
2’500 m8’202 ft
D−
2’546 m8’353 ft
Max alt.
1’464 m4’803 ft
Steepest
27%

Segments

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Elevation profile: ATOM ISASA TRAIL XTREM | Maratón 44.5 km

517 m – 1’464 m1’696 ft – 4’803 ft

Race plan

Plan your race from start to finish.

Pacing, aid stations and fueling timed to your effort on IV ATOM ISASA TRAIL XTREM, in one roadbook.

Where to stay

Find a place to stay near Arnedo for the race.

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