Phnom Penh International Half Marathon
Phnom Penh, Cambodia · Sunday 6 December 2026
Held in the bustling capital of Cambodia, the Phnom Penh International Half Marathon combines historic landmarks, vibrant streets, and Mekong River views. Runners pass iconic sites such as the Royal Palace, Independence Monument, and the Silver Pagoda, offering a rich cultural backdrop to this unique race. The flat course and warm temperatures make hydration key, but the lively crowd support, well-organized water stations, and festive post-race celebrations make it an enjoyable challenge.
Difficulty Calculator
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:m
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Adjusted Time
1:54:55
Time difference: +9.9 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain51m
Elevation High26m
Elevation Low4m
Weather Forecast
High34°C
Low26°C
Chance of Rain85%
How hard is Phnom Penh International Half Marathon?
Difficultharder than 82% of half marathons
Flattest / easiestHardest
On our difficulty model, Phnom Penh International Half Marathon plays about 9 minutes slower than an average road half marathon for a 1:30 runner. It ranks #81 hardest of 450 half marathons we analyse, and #2 of 2 in Cambodia. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Phnom Penh International Half Marathon?
Estimated finish times on this course versus the same effort on an average road half marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Phnom Penh International Half Marathon | Difference |
|---|---|---|
| 1:30:00 | 1:37:28 | +07:28 |
| 1:45:00 | 1:54:55 | +09:55 |
| 2:00:00 | 2:12:32 | +12:32 |
| 2:15:00 | 2:30:19 | +15:19 |
| 2:30:00 | 2:48:16 | +18:16 |
| 2:45:00 | 3:06:22 | +21:22 |
| 3:00:00 | 3:24:36 | +24:36 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Phnom Penh International Half Marathon 2026 Course Analysis
Phnom Penh International Half Marathon is a half marathon held in Phnom Penh, Cambodia. It is scheduled for Sunday 6 December 2026. The course is run on road surface with 51m of total climbing, with its high point near 26m above sea level. For registration and full race details, visit the official Phnom Penh International Half Marathon website.
Elevation Profile
This is a very flat course, with only 51m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.
Expected Race Day Weather
Based on historical weather data for December, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 26°C and 34°C. Heat is one of the biggest performance factors in distance running - for every degree above 15°C, finish times can slow by roughly 1-2%. Extra hydration and a conservative start are strongly recommended. There is a high chance of rain (85%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Surface Type: Road
Phnom Penh International Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.
Looking for an easier marathon or a tougher challenge? You can also compare Phnom Penh International Half Marathon against other half marathons to find the right race for your goals.
Half marathons of similar difficulty
If Phnom Penh International Half Marathon fits your goal, these courses play out about the same on our difficulty model.