The Half is the 50.0km ultra trail at Hong Kong 100 2026 (Pak Tam Chung, Hong Kong SAR China). The race starts on January 23, 2026. It starts and finishes in Pak Tam Chung.
Hold a steady pace and save energy for every section.
The course climbs 2118m+. With 42m/km of climbing, this is a rolling, mostly runnable course. By gradient, 34% of the distance is uphill, 32% downhill and 35% flat. The longest climb runs 1.8km at an average 17.2% grade (309m of vertical). The longest descent runs 7.9km at an average 5.7% grade (450m of vertical). The steepest climb averages 34.1% over 0.4km. The steepest descent drops at 28.5% over 0.3km. Surface: 49% smooth, 38% road, and 13% trail. Flat-equivalent effort: 65.6 FlatKM.
Poles bring little benefit here: only about 6.1km of pole-friendly terrain.
Quad damage risk is moderate (index 27 of 100), with 43% of the load in the first half: 1 descent deserves 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 17°C at the highest point; the chance of precipitation is about 18%. Heavy rain of 10.0mm or more falls on about 3% 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 2026HK100 (93.0km)·The Third (31.0km)
Other editions of The Half2027
Official websitehk100ultra.com
