Duin en Bollen Vierdaagse takes place on Thu, Oct 15, 2026 in Hillegom, Netherlands. The main route is 30 km.
- Date
- Thu, Oct 15, 2026
- Start
- Hillegom 🇳🇱
- Distance
- 30 km
- Level
- Open to all
A multi-day walking event taking participants through the diverse landscapes of the Duin- en Bollenstreek in Zuid-Holland, including dunes, forests, coastal areas, and historic towns.
Official event pageWhat this race demands
This multi-day walking event requires covering a 30 km distance across diverse terrain including dunes, forests, coastal areas, and historic towns.
Aerobic Endurance
Completing a 30 km walking distance demands sustained aerobic capacity and the ability to maintain a steady forward pace over many hours.
Terrain Adaptability
Navigating through dunes, forests, and coastal areas requires muscular stability and resilience to changing underfoot conditions.
Given the duration of a 30 km walk will likely exceed 2.5 hours, athletes should consume 30 to 60 grams of carbohydrates per hour to maintain energy levels.
Your road to race day
Race day at Duin en Bollen Vierdaagse is 8 weeks away. This is how a coach divides that time. The first phase starts now.
01Build2 weeks · Aug 21, 2026 – Sep 3, 2026
Progressive overload: training load climbs in waves, with harder weeks stacked on the base and planned recovery weeks that let the gains land.
02Peak3 weeks · Sep 4, 2026 – Sep 24, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
03Taper2 weeks · Sep 25, 2026 – Oct 8, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Oct 9, 2026 – Oct 15, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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