Islandsbanki Reykjavik Marathon
Reykjavík, Iceland · Sunday 23 August 2026
Islandsbanki Reykjavik Marathon is a vibrant event held annually in Reykjavik, Iceland, coinciding with the city's Cultural Night Festival. The race features a full marathon, half marathon, 10K, and 3K fun run, making it accessible to runners of all levels. The course is smoothly paved and flat, passing along the coastline of Reykjavik and Seltjarnarnes, offering breathtaking views of the ocean and surrounding mountains.
Difficulty Calculator
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:m
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Adjusted Time
3:55:57
Time difference: -4.1 minutes compared to a flat, road, temperate course.
Course Details
Elevation Gain132m
Elevation High33m
Elevation Low3m
Weather Forecast
High14°C
Low7°C
Chance of Rain0%
How hard is Islandsbanki Reykjavik Marathon?
Moderateharder than 23% of marathons
Flattest / easiestHardest
On our difficulty model, Islandsbanki Reykjavik Marathon plays about 1 minute slower than an average road marathon for a 3:30 runner. It ranks #890 hardest of 1150 marathons we analyse, and #4 of 4 in Iceland. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Islandsbanki Reykjavik Marathon?
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 Islandsbanki Reykjavik Marathon | Difference |
|---|---|---|
| 3:00:00 | 2:55:35 | −04:25 |
| 3:30:00 | 3:25:45 | −04:15 |
| 4:00:00 | 3:55:57 | −04:03 |
| 4:30:00 | 4:26:09 | −03:51 |
| 5:00:00 | 4:56:23 | −03:37 |
| 5:30:00 | 5:26:37 | −03:23 |
| 6:00:00 | 5:56:52 | −03:08 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Islandsbanki Reykjavik Marathon 2026 Course Analysis
Islandsbanki Reykjavik Marathon is a full marathon held in Reykjavík, Iceland. It is scheduled for Sunday 23 August 2026. The course is run on road surface with 132m of total climbing, with its high point near 33m above sea level. For registration and full race details, visit the official Islandsbanki Reykjavik Marathon website.
Elevation Profile
With 132m of total climbing, this is a gently undulating course. The elevation changes are manageable for most runners and shouldn't greatly affect your pacing.
Expected Race Day Weather
Based on historical weather data for August, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 7°C to 14°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a low chance of rain (0%), so dry conditions are likely.
Surface Type: Road
Islandsbanki Reykjavik 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 Islandsbanki Reykjavik Marathon against other marathons to find the right race for your goals.
Marathons of similar difficulty
If Islandsbanki Reykjavik Marathon fits your goal, these courses play out about the same on our difficulty model.