Matching MacLehose

The Hong Kong Four Trails Ultra Challenge (#hk4tuc) starts on the 100km MacLehose trail. It is the longest section, and is the first cut off. It must be completed in less than 18 hours. In addition to the length, it has a very challenging elevation profile. So, naturally, we have been spending some time to find a reasonable proxy!Here's a quick summary of distance, elevation and sections of the trail. "Normally," the trail is is travelled left to right, that is from east to west, from Pak Tam Ch