Trail running

Trail Briard by night

14 November 2026 · La Tretoire (Seine-et-Marne)

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The races

  • 18:00Trail XXS (< 25km-effort)14.2 km320 m D+

The course

320 m elevation gain Elevation gain calculated from the GPS track: 169 m

Your preparation for Trail Briard by night

You have 2 weeks left.

You can start today.

14 km trail · 320 m elevation gain

  • I'm starting from scratch

    3 runs per week

    Your longest run: 31 min

    Peak elevation gain: 320 m per week

  • I've been running for less than a year

    3 runs per week

    Your longest run: 1 h 00

    Peak elevation gain: 320 m per week

  • I've been running for more than a year

    4 runs per week

    Your longest run: 1 h 09

    Peak elevation gain: 320 m per week

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How to prepare for a trail race

Woman in running gear, phone in an armband, running through a park in the morning sun
Your preparation

You have 2 weeks left.

The Trainetic schedule for a plan that leads all the way to race day

Organizer

Ultra Trail de la Brie des Morin

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