Haarlemmermeer Run
Haarlemmermeer, Netherlands · Expected Sunday 16 May 2027Date to be confirmed
Difficulty Calculator
Adjusted Time
1:40:57
Time difference: -4.1 minutes compared to an average road half marathon.
Course Details
Typical Race-Day Weather
Average for this date over the last 8 years.
How hard is Haarlemmermeer Run?
On our difficulty model, Haarlemmermeer Run plays about 4 minutes faster than an average road half marathon for a 1:30 runner. It ranks #600 hardest of 634 half marathons we analyse, and #8 of 9 in Netherlands. Use the calculator above to see the exact adjusted time for your own goal pace.
What will you run at Haarlemmermeer Run?
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 Haarlemmermeer Run | Difference |
|---|---|---|
| 1:30:00 | 1:26:23 | −03:37 |
| 1:45:00 | 1:40:57 | −04:03 |
| 2:00:00 | 1:55:28 | −04:32 |
| 2:15:00 | 2:09:57 | −05:03 |
| 2:30:00 | 2:24:24 | −05:36 |
| 2:45:00 | 2:38:49 | −06:11 |
| 3:00:00 | 2:53:12 | −06:48 |
Use the calculator above for your exact goal time. Want a prediction from your own training? Try the marathon time predictor.
Haarlemmermeer Run 2027 Course Analysis
Haarlemmermeer Run is a half marathon held in Haarlemmermeer, Netherlands. The next edition is expected on Sunday 16 May 2027, following the pattern of previous editions (the 3rd Sunday of May). The organisers have not confirmed it yet. The course is run on road surface with 26m of total climbing, with its high point near -1m above sea level. For registration and full race details, visit the official Haarlemmermeer Run website.
Climbing
At 26m of total climbing, it is flatter than 94% of the 634 half marathons we rate. That makes it one of the flatter courses we track, well suited to an even pace.
Race-day weather
Over the last 7 years this May date has averaged a high of 16°C and a low of 9°C. That is cooler than 69% of the half marathons we track.
On 16 May over the last 7 years, the high ranged from 13°C (2023) to 23°C (2022), so pack for either. It rained on 4 of those 7 days.
| 16 May | High | Low | Rain | Wind |
|---|---|---|---|---|
| 2025 | 15°C | 7°C | dry | 21 km/h |
| 2024 | 20°C | 11°C | 14 h | 18 km/h |
| 2023 | 13°C | 8°C | 5 h | 23 km/h |
| 2022 | 23°C | 14°C | 1 h | 29 km/h |
| 2021 | 14°C | 8°C | 16 h | 19 km/h |
| 2020 | 14°C | 7°C | dry | 20 km/h |
| 2019 | 16°C | 7°C | dry | 24 km/h |
Daily weather for the race location (Open-Meteo archive). Wind is the day's peak.
Looking for an easier marathon or a tougher challenge? You can also compare Haarlemmermeer Run against other half marathons to find the right race for your goals.
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If Haarlemmermeer Run fits your goal, these courses play out about the same on our difficulty model.
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