Maasduinen Ultra takes place on Sat, Feb 27, 2027 in Arcen, Netherlands. The main route is 50 km.
- Date
- Sat, Feb 27, 2027
- Start
- Arcen 🇳🇱
- Distance
- 50 km
- Climbing
- 100 m
- Level
- Open to all
The Maasduinen Ultra is a 50 km trail running event that winds through the forests, sand drifts, and heathlands of the Maasduinen river dune belt in the Netherlands.
Official event pageWhat this race demands
The Maasduinen Ultra demands steady pacing and resilient legs to cover 50 km of undulating terrain across winter sand drifts and forest trails.
Ultra Distance Endurance
Covering 50 km requires a robust aerobic base and the muscular endurance to sustain forward motion for hours on foot.
Terrain Adaptability
Navigating sand drifts and heathlands places continuous biomechanical stress on stabilizing muscles and requires efficient running mechanics on soft ground.
Winter Conditions
A late February date in the Netherlands means athletes must prepare for cold, damp weather and manage thermoregulation effectively over a long duration.
Aim for 60 to 90 grams of carbohydrates per hour to maintain energy levels over the extended duration of a 50 km ultra.
Estimated finish times
Estimates by level, not promises. Your own number depends on your fitness on the day.
Your road to race day
Race day at Maasduinen Ultra is 27 weeks away. This is how a coach divides that time. The first phase starts now.
01Base15 weeks · Aug 23, 2026 – Dec 5, 2026
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Dec 6, 2026 – Jan 16, 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 17, 2027 – Feb 6, 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 7, 2027 – Feb 20, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · Feb 21, 2027 – Feb 27, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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