
Hawaii, United States of America · Saturday 11 September 2027
The Hawaii Bird Conservation Marathon is an annual event held on the Big Island, commencing in Volcano and concluding in Hilo. The route descends over 3,700 feet in elevation, making it one of the fastest certified marathon courses in the United States, and regularly serves as a Boston Marathon qualifier, with more than half of finishers achieving this standard in some years.
Adjusted Time
4:15:07
Time difference: +15.1 minutes compared to a flat, road, temperate course.
On our difficulty model, Hawaii Bird Conservation Marathon plays about 26 minutes slower than an average road marathon for a 3:30 runner. It ranks #227 hardest of 1151 marathons we analyse, and #133 of 576 in United States of America. Use the calculator above to see the exact adjusted time for your own goal pace.
Estimated finish times on this course versus the same effort on an average road marathon, based on its elevation, surface, and expected race-day temperature.
| Average-course time | On Hawaii Bird Conservation Marathon | Difference |
|---|---|---|
| 3:00:00 | 3:08:11 | +08:11 |
| 3:30:00 | 3:41:26 | +11:26 |
| 4:00:00 | 4:15:07 | +15:07 |
| 4:30:00 | 4:49:12 | +19:12 |
| 5:00:00 | 5:23:38 | +23:38 |
| 5:30:00 | 5:58:23 | +28:23 |
| 6:00:00 | 6:33:28 | +33:28 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Hawaii Bird Conservation Marathon is a full marathon held in Hawaii, United States of America. It is scheduled for Saturday 11 September 2027. The course is run on road surface with 37m of total climbing and around 1154m of descent (a net drop of roughly 1117m), with its high point near 1228m above sea level. For registration and full race details, visit the official Hawaii Bird Conservation Marathon website.
This is a net-downhill course: it descends roughly 1117m more than it climbs (37m of ascent against about 1154m of descent), dropping from a high point near 1228m toward 109m above sea level. Point-to-point downhill courses like this are among the fastest available for a personal best or a Boston qualifier - just be aware that sustained descending fatigues the quads late in the race, so ease off early and do some downhill running in training.
Based on historical weather data for September, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 27°C and 35°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 moderate chance of rain (47%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.
Hawaii Bird Conservation 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 Hawaii Bird Conservation Marathon against other marathons to find the right race for your goals.
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