
Kota Kinabalu, Sabah, Malaysia · Sunday 11 May 2025
Explore one of Asia's treasures! This challenge unlocks a world of athletic pursuit. Each year, the Borneo International Half Marathon captures a land of beauty. From the sounds of nature and a gorgeous setting, make memories. It's so much more than a test but a way to make the story. Explore its unique wonders.\n\nWith the chance to be transported by all that comes with Southeast Asia's unique excellence, it offers a chance to see what this excursion is all about. For you. Are you ready to expl
Adjusted Time
1:56:33
Time difference: +11.6 minutes compared to a flat, road, temperate course.
Borneo International Half Marathon is a half marathon held in Kota Kinabalu, Sabah, Malaysia, scheduled for Sunday 11 May 2025. The course is run on road surface with 247m of total elevation gain, reaching a maximum altitude of 64m above sea level. For registration and full race details, visit the official Borneo International Half Marathon website.
With 247m of elevation gain, this is a moderately undulating course. The route ranges from 2m to 64m above sea level (62m total range). While not completely flat, the elevation changes are manageable for most runners and shouldn't significantly impact pacing strategy.
Based on historical weather data for May, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 27°C and 30°C. Heat is one of the biggest performance factors in marathon running — research shows that for every degree above 15°C, marathon times slow by approximately 1-2%. Extra hydration and a conservative start are strongly recommended. There is a high chance of rain (95%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.
Borneo International Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for marathon running. Road courses allow for consistent pacing and are typically the best choice for runners targeting a personal best time.
Our difficulty rating for Borneo International Half Marathon is calculated using a model that combines elevation gain, temperature impact, and surface type. Use the difficulty calculator above to enter your target finish time and see exactly how many minutes this course would add or subtract compared to a perfectly flat, cool, road-based half marathon. Faster runners and slower runners are affected differently by the same course conditions, so the difficulty is personalised to your pace.
Looking for an easier marathon or a tougher challenge? You can also compare Borneo International Half Marathon against other half marathons to find the right race for your goals.