Yesterday I finished the Leiden Marathon, it was the hardest 42K I ever completed due to the temperature. Sunny with a clear sky, temperatures climbed to 25°C.

Yesterday I finished the Leiden Marathon, it was the hardest 42K I ever completed due to the temperature. Sunny with a clear sky, temperatures climbed to 25°C. Several runners collapsed from heat exhaustion, and one even required resuscitation. When you push your limits, sometimes you actually reach them.