Jeroen's Blog

and having the best beer of my entire year. I am 30 kilometers into the 2025 X-Alpine, an ultra trail organized in Verbier Switzerland. It's the middle of the night and my legs already feel heavy. We started the day before at 22hr and the running feels, so so, it just doesn't seem to click. For the most part I feel tired and uncoordinated. The race is 140k long, so the 30k mark should feel merely like a warm up. I'm leaving the lowest point of the course in Sembrancher to sta

No stress? That could be a problem! The Yerkes - Dodson law suggests we need just the right amount in order to achieve peak performance!

It’s 2am during the night when my light beam illuminates a big brown table cloth. It’s hanging in between trees on a clothesline, has a...

Ever since I found out about the existence of the Ultra Trail du Mont Blanc (UTMB), I've been fascinated by that race. It must have been...

2020 was a year for sportsmen where a lot of their competitions got cancelled because of covid. This was also the case for me. When in...

oktober 21th 2018 A little bit hesitating do I walk towards the start zone. The colored pacer flags are gently dancing around in a sea of...