Cover photo of TransLantau 50 2025 — 52 km, 2559 m elevation gain

TransLantau 50 2025

November 16, 2025
Distance
52.0 km
Elevation gain
2559 m
Country
🇭🇰 Hong Kong
Course weather at your time of passage

The forecast arrives five days before the start.

Here you'll find the elevation profile and an estimated finish time based on your UTMB Index.

What's your time based on your UTMB?

Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.

Predicted race time based on your UTMB Index® · smoothed times achieved by runners at your level in past editions

UTMB Index®
Peaking08h21
Normal day
3005007009001000UTMB Index®
from Peaking (P10) to Survival mode (P90)extended based on 209,157 finishers from 222 racesCalibrated UTMB® points
SourceUTMB® IndexLiveTrail

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Cut-off times and crew - TransLantau 50 · 2025

52 km race checkpoints: kilometers, elevation, crew, cut-off time and access
Aid stationCum. kmCum. D+Seg. kmSeg. D+Seg. D-CrewCut-offAccess
Pak Mong14.90 m14.9740 m736 m—Mon 06:15 PM—
Pak Kung Au24.30 m9.4867 m535 m—Sun 04:30 PM—
Chi Ma Wan 134.40 m10.1301 m578 m—Sun 07:00 PM—
Chi Ma Wan 245.90 m11.5531 m551 m—Sun 10:00 PM—
Finish - Mui Wo 梅窩52.00 m6.1120 m159 m—Mon 11:00 PM—

Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.

What you'll find at each aid station

Aid station contents not documented.

La feuille de ton assistance pour TransLantau 50 · 2025

Les règles d'assistance de cette course ne sont pas encore connues : tu marqueras tes rendez-vous toi-même.

Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.

Elevation profile

0 M100 M200 M300 M400 MS01 · Pak Mong KM 14.9 — Alt 8 m D+ cumulé 0 m14.9 KMPak MongS02 · Pak Kung Au KM 24.3 — Alt 340 m D+ cumulé 0 m24.3 KMPak Kung AuS03 · Chi Ma Wan 1 KM 34.4 — Alt 63 m D+ cumulé 0 m34.4 KMChi Ma Wan 1S04 · Chi Ma Wan 2 KM 45.9 — Alt 43 m D+ cumulé 0 m45.9 KMChi Ma Wan 2Start0 KMFinish52.0 KM

The course and its aid stations

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GPX

TransLantau 50: times, aid-station stops and fuelling needs by UTMB® Index

Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 9h40 to 5h36. These times include aid-station stops: they come from real durations between two timing points, and this race's timing does not measure stops separately.

SourceUTMB® Index
Estimated time, stop time and fuelling needs on TransLantau 50 by UTMB Index
UTMB® IndexEstimated timeNight hoursCarbsFluidSodiumCut-off margin
5009h40—580 g6.8 L4,833 mg+699h50
5508h58—538 g6.3 L4,483 mg+700h32
6007h49—469 g5.5 L3,908 mg+701h41
6507h09—429 g5 L3,575 mg+702h21
7006h35—395 g4.6 L3,292 mg+702h55
7506h03—363 g4.2 L3,025 mg+703h27
8005h36—336 g3.9 L2,800 mg+703h54

Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.

Other trails worth preparing for in France

Sources and method

  • Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
  • Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
  • Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — TransLantau 50

Weather for TransLantau 50

The weather for TransLantau 50 will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.

Detailed weather for TransLantau 50, hour by hour on the course

Frequently asked questions

How many checkpoints?

TransLantau 50 has 5 checkpoints: 5 checkpoints with undocumented contents. Details are in the two tables above.

What distance and elevation gain?

TransLantau 50 is 52 km long with 2559 m of elevation gain.

How long to finish?

With a UTMB Index of 600 (average runner), the estimated time is around 7h49 for TransLantau 50.

What's the weather forecast?

The weather for TransLantau 50 will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.

Want to stack the odds in your favor for TransLantau 50?

In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.

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