SWISSMAN Xtreme Triathlon: Course, Elevation & Route Profile

Course & Elevation

The swim starts at the Brissago islands and covers 3.8 kilometres across to Ascona. The bike begins at 195 metres, the lowest point of the day, and climbs the Ticino valley almost imperceptibly for eighty kilometres up to around 1,050 metres. That first half is not a mountain stage but a long approach under permanent resistance.

From kilometre 83 comes the first real pass: 11.2 kilometres at 7.7 percent up the Gotthard (2,107 m), the only hors-catégorie climb of the bike leg. After the descent the Furka (2,429 m) follows with barely any recovery as the high point of the day, and shortly after that the Grimsel (2,164 m). Between kilometre 83 and kilometre 140 you therefore cross three passes and climb more than 2,100 metres; the road then drops around 1,500 metres to where the bike is racked.

The marathon starts at 566 metres and rolls through the valley for its first thirty kilometres, with one short climb right at the beginning and a long flat middle section. The actual course begins at kilometre 33: 9.3 kilometres averaging almost 12 percent with ramps beyond 20 percent, 1,111 metres of climbing in one piece to a finish at a good 2,050 metres.

Pacing Strategy

Pacing here is governed by altitude, not by distance. The first eighty kilometres on the bike rise only gently, yet they offer just enough resistance to be ridden too hard without it being obvious. Win fifteen minutes there and you lose them twice over on the Gotthard.

The decisive block is Gotthard, Furka and Grimsel: three climbs in less than sixty kilometres, two of them above 2,000 metres, where the power available to you drops anyway. Ride them clearly below what would be possible on the first pass, and treat the cold descents between them as part of the effort. Fifteen hundred metres of descending in wet kit costs more substance than the climb before it.

The trap on the run is its opening. Thirty largely flat kilometres invite marathon pace even though more than half the run's climbing is still ahead. Over a quarter of the final climb is steep enough that you will walk it; the only open question is how fast.

Training plan for SWISSMAN Xtreme Triathlon: 12-week build

For age-group athletes the day typically takes 14 to 18 hours. The demand splits in two: first several hours of steady aerobic work in the valley, then a long block of climbing at altitudes where oxygen uptake is measurably lower, and finally a run section closer to a vertical race than to a marathon.

Two phases decide it: the sequence of passes between kilometre 83 and 140, and the last nine kilometres of the run. Both demand output at altitude, and both arrive when the temperature sits far below what it was on Lago Maggiore.

Training should emphasise long mountain rides with at least two climbs of more than an hour, ideally taking you above 2,000 metres, so that you know rather than guess what you can actually produce up there. Add deliberate descending practice in the cold and rehearsed clothing changes, because the descents are long, exposed, and the place where most races quietly fall apart to the cold.

For the run, steep hiking matters more than running economy. Alternating walking and running on ramps between 12 and 20 percent, always after several hours on the bike, is the closest match to the finale. Fuelling in the cold matters just as much: what digests easily at 200 metres on Lago Maggiore often stops working on a pass summit. Test your race nutrition at least once on a full mountain day.