Crow Mountain Survival: Course, Route Profile & Map

Course & Elevation

According to the organiser, the 15 kilometres are made up of two loops: first the large 10-kilometre circuit, then the small 5-kilometre round. The terrain around Bremen is decidedly flat, over 60 percent of the course runs without any gradient, and the barely 85 metres of elevation across the full distance are merely gentle undulations along paths and dykes.

Because the elevation profile plays practically no role, the load comes from two other sources: the length of the two loops joined together and the obstacles that define this OCRA-Germany race. As a survival format it is less about fast personal bests than about staying able to run over the full distance and clearing the obstacles even with tired arms and legs.

The lap character means you tackle the 5-kilometre loop at the end with ten kilometres already run. It is exactly this switch from the long loop to the short one, carrying the fatigue of the first circuit, that gives the Extremlauf its name.

Pacing Strategy

On a flat obstacle race there is no gradient to regulate your pace for you and no descent to recover on. Your metering comes from you alone and from the rhythm between running and obstacles. Run the first, long loop distinctly more controlled than it feels, because the second loop decides the race.

The deciding moment is the switch to the 5-kilometre loop after ten kilometres. Take the 10-kilometre round too fast or burn yourself out on the early obstacles and you lose time and strength out of proportion at the end. Ration your reserves so that you can still clear the obstacles of the final loop fluidly and without long pauses.

Because the profile is flat, the same muscle groups work throughout the running. Keep cadence and pace deliberately even and lift the tempo only in the closing kilometres of the short loop.

Training plan for Crow Mountain Survival: 12-week build

The Extremlauf usually takes between one and a half and two and a half hours depending on fitness and obstacle density. The effort is a mix: a mostly aerobic, flat run repeatedly interrupted by short, powerful obstacle efforts that tax arms, core and grip strength. These switches between running and full-body strength shape the preparation.

What decides the race is endurance across the joined loops and the ability to clear obstacles with pre-fatigued muscles. On flat terrain it is not climbing form that matters but how long you can hold an even running pace without falling apart at the obstacles.

In training, that means solid aerobic base with easy runs of ten to fifteen kilometres on flat ground, complemented by tempo runs for a stable race pace. Just as important is functional strength and grip work that mirrors the typical OCR obstacles: pull-ups, carries, pulls and inclined walls.

Deliberately build transitions where you run on straight after short strength efforts, to rehearse the constant switching of the race. Because the run takes place in early September in Bremen, conditions are usually mild; wet obstacles and slippery ground are part of the character, though, and should not surprise you in preparation.