Running

Kerzerslauf: Course, Elevation & Route Profile

The 15 km Kerzerslauf is the classic distance of this Seeland race and, for thousands of Swiss runners, the real opening of the season. The loop leaves the village on asphalt, farm tracks and gravel, brushes the nature reserve by the Aare reservoir and puts its decisive climb in front of you after nine kilometres. Anyone expecting a flat lowland lap has read it wrong.

DateMarch 20, 2027
LocationKerzers, Switzerland
Distance15 km
Elevation Gain+180m
Distance15 km
Elevation Gain+180m
ClassificationRolling
Route ShapeLoop

Course & Elevation

The gun goes at 11:36 in the Vordere Gasse at around 450 metres, in blocks seeded by predicted time. The first kilometre already takes you out of the village and some twenty-five metres up onto the farmland plateau, where the route keeps climbing gently and steadily for the next four kilometres. At kilometre five comes the first real bite: three hundred metres at a good nine percent, with pitches above thirteen, onto the high point at 525 metres.

The course then drops for two kilometres down to the water and runs flat along the Aare reservoir through the Niederried-Oltigen nature reserve, the lowest part of the lap. From kilometre 9.2 the section that defines this race begins: a good kilometre averaging 5.5 percent with ramps above fifteen, close to sixty metres of unbroken climbing, back up onto the plateau. The closing four and a half kilometres tilt gently downhill through the neighbouring villages and along the Vordere Gasse into the finish at the Herresrain.

The surface changes constantly: village streets, gravel, farm track, forest floor, lakeside path. The Kerzerslauf has been run since 1979, reaches its 49th edition in 2027 and drew almost eight thousand entries in 2026, with women making up a good forty-five percent of the field. It was the first Swiss event to be certified for sustainability and today meets the ISO 20121 standard; the return rail journey is included in the entry fee.

Pacing Strategy

There is barely a neutral section on this lap. Just under thirty percent of it is flat, thirty percent runs uphill and thirty-five percent downhill, and it keeps alternating. An even split is therefore the wrong target: pace on effort and accept that kilometres one to five will be slower and kilometres six to eight faster than your average.

The race is decided on the climb from kilometre 9.2. It arrives straight after the flattest and fastest part of the course along the reservoir, lasts four to seven minutes depending on your level, and steepens towards the top. Hammer the two flat waterside kilometres before it at race pace and you arrive up there with nothing left, losing more over the remaining four and a half kilometres than the fast flat section ever gave you.

The second trap is the long descent between kilometre 5.8 and kilometre eight. Sixty metres of downhill invite long braking strides on gravel and farm track, and that is exactly what costs you the quadriceps for the climb that follows. Take it with a high cadence. Then there is the wind: most of the course runs unsheltered across open fields, and in March a north-easterly is no rarity. On the exposed kilometres a group is worth more than any solo effort.

Training plan for Kerzerslauf: 12-week build

For a committed age-group runner this race lasts roughly an hour to an hour and a half. The demand is not that of a steady threshold run but a sequence of changes: four or five longer climbs, two long descents and only about a third of the distance genuinely flat. For long stretches you sit clearly above or clearly below threshold and have to find an economical rhythm again quickly after every rise.

The key training content is climbing at race duration rather than hill sprints. Repetitions of four to seven minutes at five to seven percent reproduce the decisive climb from kilometre nine. Put them at the end of a longer run on a regular basis, because that is exactly where it falls in the race: two thirds of the way in and straight out of a fast flat section.

The transition from downhill back to flat matters just as much. Between kilometre 5.8 and kilometre eight you give back sixty metres, and a two-kilometre flat stretch follows in which the legs have to produce pace again immediately. Practise controlled downhill running at a high cadence and add two to three minutes at race pace to each repetition. Since a good share of the course runs on gravel and farm tracks, those sessions do not belong on asphalt alone.

Conditions are the second training factor. The Kerzerslauf is a mid-to-late March race, the end of winter preparation and for many the first hard effort of the year. Cold air, wind across open fields and a possibly soft surface come with it. Plan at least two or three outdoor tempo sessions in exactly those conditions and use them to test clothing and shoe choice; grip and wind protection decide more here than on a city course.

Course Map

Höhenprofil / Elevation Profile
Hover über Grafik für Details
452m 489m 527m 0 km 3.7 km 7.5 km 11.2 km 15.0 km

Profile Parameters

Ascent+180m
Descent-181m
Vert/km12.0 m/km
Remaining Ascent0m
Highest Point525m

Slope Distribution

Flat (<2%): 30.6%
Moderate Up (2-6%): 29.9%
Moderate Down (2-6%): 35.2%
Steep Up (>6%): 3%
Steep Down (>6%): 1.3%

Climbs on Route

Start (km)LengthØ GradientMax GradientElev GainCategory
KM 0.20.6 km3.8%7.6%+24m
KM 5.00.3 km9.3%13.2%+28m
KM 9.21.1 km5.5%15.6%+59m

Climb categories follow the road-cycling convention and rate the terrain itself (length and gradient) regardless of sport: Cat. 4 marks the easiest rated climbs, Cat. 1 the hardest, and HC (hors catégorie, “beyond categorization”) is reserved for the most brutal ascents. Short climbs below the Cat. 4 threshold stay unrated.

Course as GPX

Download the 15 km course as a GPX file for your watch or bike computer.

Adaptive race preparation

Let YOUB adapt your plan for Kerzerslauf dynamically

Ben connects your goal, the course, current load, recovery, and calendar. Your plan stays pointed at race day even when real life is not perfectly plannable.

Frequently asked questions

How long is Kerzerslauf?

Kerzerslauf is 15 km long. That distance shapes how much aerobic endurance, pace durability, and race-specific work belong in the training plan.

How much elevation gain does Kerzerslauf have?

Kerzerslauf has around 180 m of elevation gain over 15 km. That affects pacing, muscular load, and preparation for late-race sections.

What is the route profile of Kerzerslauf?

Kerzerslauf is classified as Rolling, averaging 12 vertical metres per kilometre. 31% of the route is flat, 30% climbs moderately (2 to 6%) and 3% is steeper than 6%.

What climbs does Kerzerslauf have?

The hardest climb of Kerzerslauf starts at kilometre 9.2, runs for 1.1 km at an average of 5.5% and gains 59 metres. 3 climbs are mapped in total.

Is Kerzerslauf a loop course?

Yes, Kerzerslauf is laid out as a loop: start and finish are in the same place.

How should I prepare for Kerzerslauf?

Preparation for Kerzerslauf should account for 15 km, 180 m of elevation gain, current training load, and available training time. An adaptive plan helps place key sessions without ignoring recovery and real life.

What pacing strategy works for Kerzerslauf?

The pacing strategy for Kerzerslauf should reflect 15 km, 180 m of elevation gain, and your current fitness. Start controlled and keep margin for sections where the profile or fatigue makes target pace harder.

When does Kerzerslauf take place?

Kerzerslauf takes place on March 20, 2027.

Where does Kerzerslauf take place?

Kerzerslauf takes place in Kerzers, Switzerland.

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