Trail Running · New Territories

🇭🇰Hong Kong 100 km:
Course Analysis & Race Readiness

100 km with 4,527 m of climbing and 4,063 m of descent across 21 climbs and 18 descents. Rolling terrain that saves its biggest 515 m climb for kilometer 84.

CourseRecon scores your own training against the descending and durability demands that define Hong Kong 100 km — the sample analysis below shows exactly how.

100 km

Distance

+4,530 m

Vertical Gain

−4,060 m

Total Descent

Jan 23, 2027

Next Edition · 185 days out

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The Course · GPS-Measured

What 92.8 km / 57.7 mi and 4,530 m / 14,850 ft of vertical gain actually look like

Measured from the GPS track: 92.8 km / 57.7 mi and 4,530 m / 14,850 ft of vertical gain. This is the terrain you're signing up for: read it before it reads you.

Course Profile

Segments

Daylight

Terrain summary

Claimed vs GPS-Measured

Claimed · Organizer

100km

Distance

+5,070m

Gain

−7.2 km−540 m

GPS-Measured

92.8km

Distance

+4,530m

Gain

Climb & Gradient

+4,530 mTotal Gain

−4,060 mTotal Loss

Gradient Distribution

31%

Flat

≤3% grade

25%

Run-Climb

3–15% up

10%

Steep Climb

>15% up

34%

Descent

downhill

Steepest Sustained Sections

Climb

KM 23.3–26.6 · +400 m

+12%

Climb

KM 40.3–43.1 · +326 m

+11.8%

Descent

KM 46.1–48.5 · −285 m

-11.5%

ClimbCRUX

KM 83.6–88.4 · +515 m

+10.8%

Finish & Cutoff Times

What it takes to finish

Reference finish times from past results — use them to set a realistic goal pace.

9h 43m

Winning time

10h 30m

Top 5

11h 07m

Top 10

21h 42m

Median finisher

27h 31m

Back of pack

What This Race Demands

Four things this course asks of your body

Every course weights the four pillars of mountain-ultra fitness differently. Descending carries 43% of the scoring weight on this course — the terrain makes that the deciding factor.

Weighting shows where readiness is won or lost at this distance — not whether you need each pillar. An aerobic base is a given for a race this long, so it carries little deciding weight even though it's essential — the gaps open on the climbs, descents and the back half.

AerobicSustained engine

Foundational

Sustained 100 km effort with 31% flat terrain rewarding steady running economy.

ClimbingVertical power

21%

4,527 m over 21 climbs, including a 515 m ascent and multiple 12% pitches.

DescendingEccentric / braking

43%

4,063 m of loss across 18 descents, with steep pitches reaching -11.5%.

DurabilityLate-race resilience

36%

Ultra-distance grind absorbing repeated climbs and descents before a late 515 m wall.

The Profile in One Line

A relentless 100 km of accumulated up and down, with the decisive climb arriving deep in the second half.

Aerobic FoundationalClimbing 21%Descending 43%Durability 36%

Here's how CourseRecon reads a course and an athlete

Sample Readiness Analysis

What a readiness result looks like for this course

This is a worked example for a representative strong mountain-ultra athlete — not your score. Connect your own training and the same analysis runs on you.

Sample

OUT OF 100

READY

For a representative strong mountain-ultra athlete

This is a sample — connect your Strava to see your own result.

Pillar Breakdown

Aerobic

With 31% of the course flat and gentle gradients common, steady aerobic running between climbs carries a large share of the distance.

Climbing

100

Twenty-one climbs totaling 4,527 m demand repeatable uphill power, with 10% of the course steeper than 15% and a peak climb of 515 m.

Descending

The single heaviest demand: 4,063 m of loss over 18 descents, including a 437 m drop and pitches near -11.5%, taxing quads and foot control across 34% downhill terrain.

Durability

At 100 km with over 8,500 m of combined vertical change, legs must stay intact through repeated transitions to reach the late 515 m climb at km 84.

KM 84–88

The Late 515 m Climb

The biggest climb of the day, 515 m at 10.8% over nearly 5 km, arrives past kilometer 83 when legs are deepest into fatigue. Reaching the 907 m high point here separates finishers from contenders.

KM 23–43

Back-to-Back Mid-Race Climbs

A 400 m climb at 12% followed by a 326 m climb at 11.8% stacks vertical gain across the middle of the course. Managing effort here preserves the reserves needed for the late wall.

DESCENTS

4,063 m of Cumulative Loss

Eighteen descents including a 437 m drop and grades to -11.5% pound the quads throughout. Descending control determines how much running remains for the flat 31% that fills the gaps.

That was a sample