Gornergrat Zermatt Marathon: Course, Elevation & Route Profile

Course & Elevation

The first half plays out in the Mattertal. From St. Niklaus at 1,116 m the course runs through Herbriggen, Randa and Täsch on valley tracks and paths along the mountain streams to Zermatt, reached a little past twenty kilometres. It is not flat: in steps of a hundred to a hundred and sixty metres at a time it collects some five hundred metres of climbing, without any single rise being long enough to break your running rhythm.

Behind Zermatt the real race starts. From kilometre 24 a 6.3-kilometre climb at just under ten per cent leads via Patrullarve to Sunnegga at 2,262 m. Then comes the traverse past the Grünsee to the slightly lower Riffelalp, the only stretch in the second half where you can run again, before the closing ramp averaging thirteen per cent with pitches beyond twenty takes you to the chapel on the Riffelberg. That is where the marathon ends; the Ultra turns off two hundred metres later and keeps climbing over Rotenboden to the Gornergrat.

From Zermatt on, the Matterhorn is in view almost continuously, and the final hours run through high-alpine terrain above 2,500 m where snow is possible in early July, while twenty-five degrees and more are normal down in the valley at the start. The field is small by marathon standards at roughly two thousand starters across all four races, poles and walking aids are banned, and the Gornergrat railway brings finishers back down. That the whole event was cancelled for weather in 2024 tells you what kind of day this is: a mountain, not a road race.

Pacing Strategy

The first twenty kilometres are not a racing section, they are the approach. They are runnable, rise only gently and tempt you into marathon-pace thinking; what belongs there is the effort of a long easy run, because the race is settled four hours later. The Zermatt checkpoint is set generously enough that even a markedly conservative start leaves plenty of margin.

The race is decided on the climb from Zermatt to Sunnegga: 6.3 kilometres at just under ten per cent, without poles, with half a marathon already in your legs. This is where the field comes apart. Work it as even strength-endurance at the top of the aerobic range and use the traverse to the Riffelalp deliberately for eating and drinking, and you reach the final ramp with functioning legs.

The trap sits beyond the Riffelberg. The last 3.4 kilometres deliver 514 vertical metres entirely above 2,600 m, after more than 42 kilometres and often six to seven hours of work. The thin air costs measurable output there, and the temperature spread between the valley start and the finish can exceed twenty degrees. Leaving the wind shell in your kit bag or skipping the Rotenboden aid station costs more time over those 3.4 kilometres than any climb before it.

Training plan for Gornergrat Zermatt Marathon: 12-week build

Depending on level the Ultra takes roughly five to eight hours, inside an organiser time limit of a little over eight. The demand is a very long, predominantly aerobic day with only about four hundred metres of descent: there is essentially no eccentric loading, and therefore no recovery either. The muscles work concentrically uphill from start to finish.

What decides the race is being able to climb some 1,800 metres after 24 kilometres already run, and the long sessions should be built exactly that way: two to three hours of flat to rolling running first, then 800 to 1,200 vertical metres in one continuous block. Because poles and walking aids are banned, fast uphill hiking has to work unaided; calves, glutes and hip extensors need their own strength and gradient work for that.

Conditions come in two halves, and both belong in the build. The start sits on the warm valley floor where twenty-five degrees and more are normal in early July, the finish in high-alpine terrain at 3,089 m where wind, cold and snow are all possible. Heat acclimatisation in the final four to six weeks matters as much as training days above 2,500 m and a rehearsed system of layers, gloves and the drop bag that is carried to the finish.

The third emphasis is fuelling across a whole day. There are around fifteen aid stations on the course, the last of them in thin air where the stomach behaves differently than it does at low altitude in training. Carbohydrate intake per hour should therefore be rehearsed in long sessions in heat and at altitude. The organiser states the prerequisite plainly: this course is built for very well-trained runners.