Managed 40km/1100m elevation in the pouring rain and unexpectedly cold temperatures before DNFing. Absolutely nailed nutrition, hydration, plan, pace, & HR but I couldn't stay warm. Sucks but I'm not built for the cold, I was expecting warmth/heat today. I am rolling into a training block for a 50k in August and wondering if I could fit in a solo attempt at the 80km in the fall. It would be a shame to waste all this readiness.