Hong Kong 100 Ultra Trail Race is a 100km ultra marathon in Hong Kong, Hong Kong. Distance: 103km. Elevation: 4,600m D+. Difficulty: challenging (Challenge Rating 54/100). DNF rate: 18%. Time limit: 30h. Surface: trail. Established 2011.
Hong Kong 100 Ultra Trail Race
Hong Kong, New Territories, Hong Kong
"100km through Hong Kong's secret wilderness. Jungle-clad mountains, coastal ridges, and a cityscape like no other."
Discover Hong Kong's wild side — 100km of mountain trails through jungle, ridgelines, and country parks with the city skyline on the horizon.
The Course
A demanding traverse of Hong Kong's surprisingly wild and mountainous country parks. The course follows the MacLehose Trail and other trails through jungle-clad mountains, coastal ridges, and remote valleys. Technical sections mixed with runnable fire roads.
mountainous
point-to-point
10
957m
5
Runner Experience
Standard aid station support with food, drinks, and basic medical assistance at regular intervals.
A legendary finish line atmosphere. Hong Kong 100 Ultra Trail Race is a bucket-list race with celebrations that match its reputation.
Race Day Weather
15°C
10° – 20°
70%
20%
Hong Kong winter — cool and relatively dry by local standards. Night temperatures at altitude can be surprisingly cold.
Stats & Records
2011
1,000
20:00:00
09:28:00
Yan Longfei (2016)
11:27:00
Andrea Huser (2018)
Entry
HKD 1,200
May
instant
Lore & Trivia
Hong Kong 100 is Asia's most prestigious ultra and the race that proved trail running could thrive in one of the world's densest cities. The 100km route traverses the MacLehose Trail — Hong Kong's finest long-distance path — from Sai Kung in the New Territories to Tai Mo Shan, the territory's highest peak at 957m. The course is staggeringly vertical for a city race: 4,500m of climb up steep stone steps, ridge crests, and jungle hillsides, often within sight of skyscrapers and container ships. Hong Kong's trail running culture is fanatical — the city has more trail runners per capita than almost anywhere on earth — and HK100 is its showcase event. The race draws elite international runners (it's a UTMB qualifier) alongside a massive local field, and the finish at Yuen Long is one of the great celebrations in Asian ultrarunning.
- ▸ Asia's most prestigious 100km ultra and a UTMB World Series event.
- ▸ The MacLehose Trail traverses the New Territories through subtropical jungle and coastal ridges.
- ▸ 4,500m of climbing — mostly on steep stone steps carved into hillsides.
- ▸ Hong Kong has one of the highest trail runner densities per capita in the world.
- ▸ The race typically fields 2,500+ runners from 60+ countries.
- ▸ Temperature can range from 5°C (hilltops at night) to 20°C (sheltered valleys) in January.
- ▸ The city skyline is visible from multiple ridge points — a uniquely urban mountain race.
- ▸ Founded in 2011 and rapidly became one of the most important races in global trail running.
In Hong Kong, the jungle starts where the office blocks end. You can run from a stock exchange to a mountain summit in an hour.
Notable Editions
D'Haene Conquers Hong Kong
French UTMB champion François D'Haene won HK100 in a dominant performance, bringing global attention to what was already Asia's best ultra. His presence validated HK100 as a world-class event.
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Frequently Asked Questions
How long is Hong Kong 100 Ultra Trail Race? +
Hong Kong 100 Ultra Trail Race is a 100km (103km) ultra marathon with 4,600m of elevation gain. The course is point-to-point on trail terrain.
How hard is Hong Kong 100 Ultra Trail Race? +
Hong Kong 100 Ultra Trail Race is rated challenging with a Challenge Rating of 54/100 (Challenging). The DNF rate is 18%. Runners have 30 hours to finish.
How do I enter Hong Kong 100 Ultra Trail Race? +
Must have completed a qualifying ultra within the past two years.. Entry is by lottery. Entry costs HKD 1,200. with a maximum of 1500 starters.
What is the weather like at Hong Kong 100 Ultra Trail Race? +
Average temperature is 15°C (range 10°C to 20°C) with 70% humidity and a 20% chance of rain. Hong Kong winter — cool and relatively dry by local standards. Night temperatures at altitude can be surprisingly cold.
Are crew and pacers allowed at Hong Kong 100 Ultra Trail Race? +
No crew access is permitted. Pacers are not allowed. Mandatory gear is required.
What is the course record for Hong Kong 100 Ultra Trail Race? +
The men's course record is 09:28:00 set by Yan Longfei in 2016. The women's course record is 11:27:00 set by Andrea Huser in 2018.
What is the average finish time for Hong Kong 100 Ultra Trail Race? +
The average finish time is 20:00:00. About 1,000 runners finish each year. The DNF rate is 18%.
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