Trail Running · Hong Kong

🇭🇰Hong Kong 50:
Course Analysis & Race Readiness

Fifty kilometers with 1,362m of gain against 1,540m of loss, capped by low elevations under 430m. A net-downhill, quad-punishing course where descending and durability decide the day.

CourseRecon scores your own training against the durability and descending demands that define Hong Kong 50 — the sample analysis below shows exactly how.

50.0 km

Distance

+1,260 m

Vertical Gain

−1,440 m

Total Descent

Oct 17, 2026

Next Edition · 87 days out

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The Course · GPS-Measured

What 50.7 km / 31.5 mi and 1,260 m / 4,140 ft of vertical gain actually look like

Measured from the GPS track: 50.7 km / 31.5 mi and 1,260 m / 4,140 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

50.0km

Distance

+1,370m

Gain

+0.7 km−110 m

GPS-Measured

50.7km

Distance

+1,260m

Gain

Climb & Gradient

+1,260 mTotal Gain

−1,440 mTotal Loss

Gradient Distribution

39%

Flat

≤3% grade

25%

Run-Climb

3–15% up

Steep Climb

>15% up

32%

Descent

downhill

Steepest Sustained Sections

Descent

KM 1.4–3.5 · −164 m

-7.9%

Descent

KM 7.6–9.9 · −129 m

-5.6%

Climb

KM 19.4–22.4 · +158 m

+5.3%

ClimbCRUX

KM 37.7–42.1 · +220 m

+5.1%

Finish & Cutoff Times

What it takes to finish

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

4h 49m

Winning time

5h 24m

Top 5

5h 56m

Top 10

9h 05m

Median finisher

10h 44m

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. Durability carries 47% 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 running effort over 50km of mostly runnable, low-elevation terrain.

ClimbingVertical power

17%

Six climbs totaling 1,362m, none longer than 4.3km or over 220m.

DescendingEccentric / braking

36%

Eight descents shedding 1,540m, including a 225m loss over 3.2km.

DurabilityLate-race resilience

47%

Repeated ups and downs across 50km with steep grades late in the race.

The Profile in One Line

A rolling 50K with more descent than climb, demanding durable legs and confident downhill running across relentless terrain.

Aerobic FoundationalClimbing 17%Descending 36%Durability 47%

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 elevations staying under 430m, steady aerobic output over 50km carries you, without any single climb dominating the effort.

Climbing

100

Six climbs deliver 1,362m of gain, the biggest 220m over the 37.7–42km stretch at around 5%; grades are moderate but 9.4% of the course is very steep uphill.

Descending

Eight descents give up 1,540m, more than total gain, with the biggest losing 225m over 3.2km and 6.1% of terrain very steep down—downhill technique and control are decisive.

Durability

Constant transitions between six climbs and eight descents over 50km, plus a 220m climb after 37km, tax the legs' ability to keep working when fatigued.

km 37.7–42.0

The Late Big Climb

The biggest single climb, 220m over 4.3km at roughly 5%, arrives after 37km with fatigue already accumulated. Legs that have absorbed the earlier descents must still power a sustained ascent.

km 1.4–3.5

Early Steep Drop

A 164m descent over 2km at nearly -8% comes early, tempting reckless downhill running. Overcommitting here costs quads needed for the 1,540m of total loss ahead.

Net Downhill

Descent Debt

With 1,540m of loss exceeding 1,362m of gain across eight descents, eccentric load is the defining stress. Managing quad fatigue over the full 50km separates finishers from fade.

That was a sample