The blog post with all the cool pictures

My blog post on becoming a “System Elephant”

The “Moon Marathon” website I made

Book on Nuclear War by Annie Jacobsen

Book on the dangers of Artificial Intelligence by Eliezer Yudkowsky

“How to Be Perfect” by Michael Schur

“Moral Ambition” by Rutger Bregman

The Hamburg improvement NGO “105 Viertel”

My new status website about the long-term project to go to IRONMAN Hawaii

My blog post on the CCC race at Ultra-Trail du Mont-Blanc festival

Official website of the Challenge Roth triathlon

My 2017 blog post on doing Challenge Roth for the first time

The blog post about my most recent long distance triathlon race, IRONMAN Hamburg

My Tuscany Crossing 103K blog post

My longest distance race yet, Lavaredo Ultra Trail 120K back in 2023

The North Downs Way 100 website—the 100-miler I plan on doing in August of 2026

My status page about trying to get into Western States 100

How Martin Grüning coached me to a new Marathon PR in early 2025

The 14 marathons and 17 books of 2025

My new marathon races list

My status page on the World Marathon Majors

Spreewald Marathon: It will complete my 16/16 German Federal States marathons goal

The little Otterndorf triathlon race where I plan on destroying Krischi’s result

The most popular blog post I wrote until now, about how I broke the sub-3 hour marathon

My newly published book, “The Beginner’s Guide to Running Your First Marathon”

CityStrides.com—the web tool I use to keep track of my EverySingleStreet Hamburg project

My blog post about putting together the Munich Breweries Ultra 2025

My blog post about putting together the BremenSanktPauli 100 race in 2025

Sign up for Munich Breweries Ultra 2026 here!

Official BremenSanktPauli 100 website

How I built a tiny house (2018)

The improvements I made on the tiny house two years later

The “Close-up” app I use for daily selfies