The Third is the 34.0km trail race at Hong Kong 100 2027 (Pak Tam Chung, Hong Kong SAR China). The race starts on January 21, 2027. It starts and finishes in Pak Tam Chung.
Run easy on the first mountain, then go all out on the second.
The course climbs 1558m+. With 46m/km of climbing, this is a true mountain course with sustained climbs and descents. By gradient, 41% of the distance is uphill, 34% downhill and 25% flat. The longest climb runs 5.1km at an average 8.4% grade (430m of vertical). The longest descent runs 5.4km at an average 8.2% grade (441m of vertical). The steepest climb averages 25.6% over 0.5km. The steepest descent drops at 27.1% over 0.3km. Surface: 64% smooth and 33% road. Flat-equivalent effort: 47.5 FlatKM.
The highest summit on the course is Sai Wan Shan (314m), 12.8km from the start. The course also passes close to Tai Cham Koi (408m).
Poles bring little benefit here: only about 3.7km of pole-friendly terrain.
Quad damage risk is moderate (index 21 of 100), with 34% 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 18°C at the highest point; the chance of precipitation is about 15%. 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 Third.
Other distances of Hong Kong 100 2027HK100 (100km)·The Half (53.0km)
Other editions of The Third2026
Official websitehk100ultra.com