The Alsemberg is a col with a length of 471 meter. It is located in Beersel, Vlaams Gewest, Belgium. The average grade of this col is 5.7% with a maximum of 6.8%. The Alsemberg ascents from 63 meter at the start, to 90 meter at the top, with a total of 27 ascending meters.
|Elevation gain||27 m|
|Average grade||5.7 %|
|Maximum grade||6.8 %|
|Minimum elevation||63 m|
|Maximum elevation||90 m|
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The Alsemberg was given its name as a slope by the organizers of Red Sportive, the club behind the De Brabantse Pijl - La Fleche Brabanconne and the autumn classic Paris-Brussels. However, it is actually the Pastoor Bolsstraat or, in popular speech, the Kerkenberg, because the slope revolves around the ducal church of the municipality of Alsemberg. Until a few years ago the arrival of 2 semi-classics, Parijs-Brussel and the Brabantse Pijl, lay on top of this climb.
- Eneco Tour 2013 - Stage 2
- De Brabantse Pijl - La Fleche Brabanconne 2017-2021
- Brussels Cycling Classic 2017-2020