How not to Run a 50 Mile

Quoting:

[...] With my quads worsening, the descents, usually one of my strengths, became more of a weakness. I focused on running as smoothly as possible to avoid more damage to my shredded muscles. The 50k course overlaps with the 50 miler over the last 10 miles, so I had regular traffic to pass, and the trails were pretty muddy. I was still running most of the moderate hills as I passed through the 45 mile aid stop, but definitely walked Timp’s pass, and I’m not talking about the uphill. [...]