Achtkastelenloop takes place on Sun, Mar 7, 2027 in Vorden, Netherlands. The main route is 30 km.
- Date
- Sun, Mar 7, 2027
- Start
- Vorden 🇳🇱
- Distance
- 30 km
- Level
- Open to all
Your 23-week plan to Achtkastelenloop
The Base phase starts this week. Built around your fitness and adjusted every day as your form changes; attach the course and it prepares for the climbs too.
Build my planFree to start · No credit card
The Achtkastelenloop in Vorden follows a mostly flat route through wooded surroundings, largely on asphalt with sections of cobbled roads and paved cycle paths.
What would it take you?
Pick the level closest to yours for an estimate of finish time on this course and the training a solid preparation needs.
Estimated finish
2:35–3:05
Peak-week training
5–7 h/week
A model estimate from distance, climbing and level, not a promise. Conditions, drafting and pacing move it.
IntervalCoach turns those weekly hours into a concrete plan built around your actual fitness. Start with this race as your goal
Your road to race day
Race day at Achtkastelenloop is 23 weeks away. This is how a coach divides that time. The first phase starts now.
01Base11 weeks · Sep 28, 2026 – Dec 13, 2026
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Dec 14, 2026 – Jan 24, 2027
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
03Peak3 weeks · Jan 25, 2027 – Feb 14, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · Feb 15, 2027 – Feb 28, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Mar 1, 2027 – Mar 7, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
Frequently asked questions
When is Achtkastelenloop?
Achtkastelenloop takes place on Sun, Mar 7, 2027 in Vorden, Netherlands.
How long is Achtkastelenloop?
The main route is 30 km.
Who is Achtkastelenloop for?
Achtkastelenloop is open to all participants.
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