Distance: 10 km
Skill / Level: Intermediate
Duration: 12 weeks
Workouts per week: 5–7
Weekly hours: 4–6
Includes: Running, Strength, Mobility, Stretch

Who is this plan for?

This plan is designed for intermediate trail runners with at least 1–2 years of consistent training experience who want to step up their performance in a 10K trail race. It’s a great fit if your goal is to run faster, improve your time, or place higher in your age group.

What you’ll get

A 12-week progressive plan written in English by experienced trail running coaches at Arduua.

Running sessions prescribed by time and heart rate zones (not distance), so the intensity adapts to your fitness.

Strength, mobility, and stretch workouts with clear instructions and video links.

Balanced training that develops endurance, speed, and trail-specific strength while allowing for proper recovery.

Plan Structure

The plan follows the proven Arduua Training Methodology, organized into focused phases to help you peak for race day:

Base Phase

Build aerobic endurance and overall conditioning

Develop mobility, core strength, and stability

Reinforce foot and ankle structures for trail running

Specific Phase

Improve aerobic and anaerobic thresholds

Develop VO₂ max and running economy

Build maximum strength and trail-specific power

Pre-Competitive & Taper

Train race-specific pacing and intensity

Fine-tune nutrition, terrain technique, and equipment

Reduce training load to arrive fresh, sharp, and ready to perform

Requirements

A TrainingPeaks-compatible training watch

An external chest strap heart rate monitor (wrist-based HR is not accurate enough for this plan)

👉 With this 12-week intermediate plan, you’ll gain structure, focus, and the progressive training needed to perform your best in a 10K trail race—finishing stronger, faster, and more confident.