Challenge Kaiserwinkl-Walchsee: Course, Elevation & Route Profile

Course & Elevation

The swim takes place in the Walchsee right at the foot of the Kaisergebirge, with transition at the edge of the village. The bike loop runs from Walchsee via Bichlach onto the B176 towards Schwendt and Kössen and back, then past the golf course and the Schwemm to Rettenschöß. The first half of the lap is rolling valley terrain with two short climbs of 850 metres and 1.7 kilometres, both around 4 to 5 percent.

It gets more demanding from kilometre 30 of the lap: 2.3 kilometres at 5.5 percent with ramps close to 10 percent, followed by a short counter-climb over Miesberg and Schwaigs before the turnaround at the Liftstüberl sends you back towards transition. Then the same loop starts again. A good 35 percent of the bike course rises, but barely one percent of it is genuinely steep. This is a course for rhythm, not for raw force.

The half marathon circles Lake Walchsee four times, gathering just 150 metres of climbing over 21.1 kilometres, more than 40 percent of it flat. The laps are short enough that you constantly see your competition and your own trajectory, which makes the run mentally harder than the profile suggests.

Pacing Strategy

Because there is no summit where mistakes punish themselves, the pacing decision moves forward. The first ten kilometres of the bike rise slightly and invite you to win back your swim time. Ride the first lap deliberately as the slower of the two.

The decisive section is the climb at kilometre 30 of each lap: short enough to overpace twice, long enough that two overshoots show up in the half marathon. Hold your target power there instead of following the group that stands up on the pedals ahead of you.

The real trap sits on the flat sections. At only 13 metres of climbing per kilometre and with long straights towards Kössen, power creeps up without it ever feeling hard. The run around the lake gives none of it back: four uniform laps without a gradient punish a hard bike split immediately.

Training plan for Challenge Kaiserwinkl-Walchsee: 12-week build

Age-group athletes typically finish between 4:45 and 6:30 hours. The demand is steadily aerobic: no steep ramps, no long descents, but a constant alternation of small rises and drops that keeps power oscillating around threshold unless you deliberately smooth it out.

The two passes over the 2.3 kilometre climb and the first five kilometres of the run decide the race. Both fall into moments where the head wants to push: after the turnaround on lap two, and straight out of transition.

The main training emphasis is therefore riding at constant power for three to four hours on rolling terrain, with the explicit goal of keeping the difference between climb and flat as small as possible. Add short climbs of two to three minutes ridden at target power rather than in the red, so repetition without spikes.

For the run, flat steady sessions and 60 to 90 minute brick runs at race pace fit best, because the profile offers no recovery on a hill. Since both the bike and the run consist of repeats, it pays to actually train in laps rather than meeting that monotony for the first time on race day. For the swim, calm open water is the right rehearsal: the Walchsee is a still lake, so clean sighting matters more than experience with chop.