Last March I participated in the most northern 10 miles running event in. the Netherlands. In June I did the most southern race, Maastricht Mooiste. The conditions were severe. Coming from flatland we had to cross the St. Pietersberg (St. Pieters mountain / yes we do have landscape element in the Netherland we call mountains). Officially it has a height of 112 m. We came very near the top as you can see in the profile below. Also, it was 28 degree Celsius.
Below you find some maps, statistics, and impressions of the event.