JM Collingwood Barn Rat Filthy 50 Gravel takes place on Sat, Oct 31, 2026 in Pretty Prairie, United States. The main route is 80 km.
- Date
- Sat, Oct 31, 2026
- Start
- Pretty Prairie 🇺🇸
- Distance
- 80 km
- Level
- Open to all
The Barn Rat Filthy 50 is a gravel cycling race and tour starting at the historic JM Collingwood Barn near Pretty Prairie and traversing the sandy, rolling roads of Kansas’s Ninnescah River Valley.
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
2:20–2:50
Peak-week training
6–8 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 JM Collingwood Barn Rat Filthy 50 Gravel is 7 weeks away. This is how a coach divides that time. The first phase starts now.
01Build1 week · Sep 13, 2026 – Sep 19, 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 20, 2026 – Oct 10, 2026
The hardest weeks of the plan: race-specific intensity at nearly full training load, sharpening exactly what this race asks for.
03Taper2 weeks · Oct 11, 2026 – Oct 24, 2026
Volume drops while intensity stays: short, sharp efforts keep the legs awake as fatigue drains away.
04Race week1 week · Oct 25, 2026 – Oct 31, 2026
Openers, rest and logistics. The work is done; the job now is arriving fresh.
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