Train for Coldwater Rumble 100
Estrella Mountain Regional Park. Two red loops. Three blue loops. One hundred miles under a thousand feet of peak elevation but eight thousand feet of rollers.
101.3 mi+3,613 ft-3,613 ft30 hours926 ft to 1,384 fttech 5/10Checkpoints per race bookEstrella Mountainsloop formatJanuary hundredJanuary
- Start1,020 ft
- High1,384 ft
- Low926 ft
- Finish1,020 ft
What PR Run builds for this start line
- Personalized plan from your baseline and this course profile
- Aid-segment fuel rehearsals tied to checkpoint spacing
- Structured gear kit from course intelligence
- Race-day pacing, crew notes, and race-morning brief
- Aid stations: 2 · longest gap ~83 km
- Mandatory kit items: 2
- Cutoff: 30 hours
The crux
Three 27-mile blue loops after two 10-mile red loops in January heat (near mile 66)
Race details can change. Confirm current rules and logistics with the Official site.
Train for your race
Train for Coldwater Rumble 100
Course-specific plan, fuel segments, gear kit, and race morning for Coldwater Rumble 100.
Official siteCheck readinessPredict finish timeFull race guideFoot care plan