The Half is the 53.0km ultra trail at Hong Kong 100 2027 (Pak Tam Chung, Hong Kong SAR China). The race starts on January 22, 2027. It starts and finishes in Pak Tam Chung.
Hold a steady pace and save energy for every section.
The course climbs 2263m+. With 43m/km of climbing, this is a rolling, mostly runnable course. By gradient, 35% of the distance is uphill, 32% downhill and 33% flat. The longest climb runs 1.8km at an average 17.3% grade (309m of vertical). The longest descent runs 7.9km at an average 5.8% grade (460m of vertical). The steepest climb averages 36.0% over 0.4km. The steepest descent drops at 28.5% over 0.3km. Surface: 51% smooth, 36% road, and 12% trail. Flat-equivalent effort: 73.8 FlatKM.
Poles bring little benefit here: only about 6.9km of pole-friendly terrain.
Quad damage risk is moderate (index 28 of 100), with 46% of the load in the first half: 0 descents deserve a plan and a couple of downhill sessions before race day.
On race day, start temperatures have historically ranged from 12°C to 20°C, with around 18°C at the highest point; the chance of precipitation is about 16%. Heavy rain of 10.0mm or more falls on about 2% of days around this date.
This page has a pacing and nutrition planner, a gradient matrix, an interactive elevation profile and historical weather for The Half.
Other distances of Hong Kong 100 2027HK100 (100km)·The Third (34.0km)
Other editions of The Half2026
Official websitehk100ultra.com
