Chiang Mai Thailand - HMONG50 DAY 2025
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
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Cut-off times and crew - Chiang Mai Thailand - HMONG50 DAY · 2025
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| A16 Khun Chang Khian Monastry | 9.4 | 0 m | 9.4 | 1,099 m | 71 m | — | — | — |
| W3 Highland Research Station (Site B) | 14.0 | 0 m | 4.6 | 34 m | 229 m | — | — | — |
| A14 Chao Pho Luang Upatham 7 School | 26.3 | 0 m | 12.3 | 327 m | 470 m | — | Sat 03:00 PM | — |
| W4 Wat Doi Pui | 36.0 | 0 m | 9.8 | 734 m | 373 m | — | — | — |
| A15 Khun Chang Khian Highland Research Station | 41.5 | 0 m | 5.5 | 199 m | 248 m | — | Sat 07:30 PM | — |
| Chiang Mai PAO Park | 55.5 | 0 m | 14.0 | 194 m | 1,198 m | — | Sat 10:30 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.
Elevation profile
The course and its aid stations
Chiang Mai Thailand - HMONG50 DAY: 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 8h28 to 5h20. 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.
Source| UTMB® Index | Estimated time | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|
| 500 | 8h28 | — | 508 g | 5.9 L | 4,233 mg | +7h02 |
| 550 | 7h59 | — | 479 g | 5.6 L | 3,992 mg | +7h31 |
| 600 | 7h05 | — | 425 g | 5 L | 3,542 mg | +8h25 |
| 650 | 6h39 | — | 399 g | 4.7 L | 3,325 mg | +8h51 |
| 700 | 6h00 | — | 360 g | 4.2 L | 3,000 mg | +9h30 |
| 750 | 5h46 | — | 346 g | 4 L | 2,883 mg | +9h44 |
| 800 | 5h20 | — | 320 g | 3.7 L | 2,667 mg | +10h10 |
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
- SMT5555 km · 3,908 m D+ · November 7, 2026
- Chiang Mai Thailand - PAGODA 50-NIGHT57 km · 3,505 m D+ · November 28, 2026
- Chiang Mai Thailand - PAGODA 50-DAY57 km · 3,505 m D+ · November 28, 2026
- Chiang Mai Thailand - HMONG 50-DAY63 km · 2,915 m D+ · December 5, 2026
- Chiang Mai Thailand - HMONG 50-NIGHT63 km · 2,915 m D+ · December 5, 2026
- Amazean Jungle Thailand - JUNGLE 50K56 km · 2,812 m D+ · May 1, 2027
- Mu Cang Chai Ultra Trail 55K56 km · 2,850 m D+ · October 3, 2026
- Chiang Mai Thailand - INTHANON 5039 km · 2,420 m D+ · November 30, 2025
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 — Chiang Mai Thailand - HMONG50 DAY
Weather for Chiang Mai Thailand - HMONG50 DAY
The weather for Chiang Mai Thailand - HMONG50 DAY 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 Chiang Mai Thailand - HMONG50 DAY, hour by hour on the courseFrequently asked questions
How many checkpoints?
Chiang Mai Thailand - HMONG50 DAY has 6 checkpoints: 6 checkpoints with undocumented contents. Details are in the two tables above.
What distance and elevation gain?
Chiang Mai Thailand - HMONG50 DAY is 56 km long with 2587 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 7h05 for Chiang Mai Thailand - HMONG50 DAY.
What's the weather forecast?
The weather for Chiang Mai Thailand - HMONG50 DAY 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 Chiang Mai Thailand - HMONG50 DAY?
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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