MammothMarch Delaware Valley takes place on Sat, May 22, 2027 in Elkton, United States. The main route is 32.2 km.
- Date
- Sat, May 22, 2027
- Start
- Elkton 🇺🇸
- Distance
- 32.2 km
- Climbing
- 488 m
- Level
- Open to all
MammothMarch Delaware Valley is a 20-mile endurance hike covering a single-circuit loop through the scenic trails, fields, and woodlands of Fair Hill Natural Resources Management Area.
Official event pageWhat this race demands
MammothMarch Delaware Valley demands sustained lower-body endurance and pacing discipline to cover 32.2 kilometers on foot.
Endurance capacity
Covering 32.2 kilometers requires hours of continuous forward locomotion, placing a high demand on aerobic capacity and muscular stamina.
Elevation management
Accumulating 488 meters of elevation gain across the loop requires steady climbing and descending efficiency to manage muscular fatigue.
Terrain adaptability
Navigating trails, fields, and woodlands over a single circuit demands stable joint support and sustained balance on uneven ground.
A sustained effort of this duration requires consistent intake of 30 to 60 grams of carbohydrates per hour to maintain energy levels.
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 MammothMarch Delaware Valley is 39 weeks away. This is how a coach divides that time. The first phase starts now.
01Base27 weeks · Aug 23, 2026 – Feb 27, 2027
Aerobic foundation: mostly steady endurance work that grows the aerobic engine and the durability the later phases stand on.
02Build6 weeks · Feb 28, 2027 – Apr 10, 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 · Apr 11, 2027 – May 1, 2027
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
04Taper2 weeks · May 2, 2027 – May 15, 2027
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
05Race week1 week · May 16, 2027 – May 22, 2027
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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