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The KTR Ilhabela 42K is a trail run of about 41 km on the island of Ilhabela, on the coast of São Paulo state in Brazil. The course climbs and descends steeply, with roughly 2,143 metres of cumulative ascent and an equal amount of descent, so runners should expect a demanding day on mountain trails. Two aid stations support the field along the way, and the race starts at 06:30 with a cut-off time of 10:30. The event is part of the KTR series and carries ITRA points, making it a recognised test of mountain endurance.
ITRA Mountain Level 6 race
Around 2,143 m of elevation gain and loss
Island trail running in Ilhabela
Terrain
Route
Race Day
What to bring
1 camiseta personalizada KTR
1 viseira ou boné
1 numeral de peito com chip
1 sacola
On the day
Before you enter
Other questions
The route has approximately 2,143 metres of elevation gain and the same amount of loss, so it is a demanding mountain course that rewards good hill training.
The 42K is a solo event, so each runner competes as an individual.
Yes. The 42K is rated at ITRA Mountain Level 6 with a Finisher Level of 300, and it is part of the KTR Championship.
Given the steep climbs and descents, train on hilly trails with significant vertical gain, practise downhill running to protect your legs, and rehearse your nutrition plan for a long mountain effort.
Na Arena KTR, Praia do Perequê, na quinta-feira 05/11/2026 (14h às 22h) e sexta-feira 06/11/2026 (10h às 22h). Não há retirada no sábado, dia da prova.
Ilhabela, Brazil
Saturday, November 7, 2026
More races like this one
€91
entry fee