Teesche Podcast

The original blog post with all the pictures

Western States 100 Endurance Run official website

Unbreakable: the Western States documentary, free on YouTube

North Downs Way 100 race website (2027 edition)

Micha on Instagram

Patrick on Instagram

Centurion Running official website

North Downs Way 100 race website (2026 edition)

Challenge Roth official website

How ChatGPT helped me achieve a new personal best at Barcelona Marathon

My journey to running marathon races in all 16 federal states of Germany

My big hill and marathon pace training session on Strava

My Challenge Roth 2026 race report

The North Downs Way hiking path on Wikipedia

My experience at the CCC race in Chamonix, France

My report about our own 100-mile race, BremenSanktPauli

Zwift indoor cycling platform

My virtual Everesting ride on Zwift: 13 climbs on Strava

My North Downs Way 100 run on Strava

Dirt Church Radio podcast

My future race plans and goals

The official list of Western States qualifying races

Mallorca by UTMB official website

Mallorca by UTMB charity bibs

Camins de pedra en sec (CPS): Mallorca by UTMB 100K race

Thames Path 100 race website (2027 edition)

The Eagle and Child pub in Oxford on Wikipedia

Official North Downs Way 100 2026 race results

Here’s the blog post containing all the pictures and videos

My second IRONMAN Hamburg race on my 35th birthday in 2019

My experience at the massive CCC in Chamonix, France

My optimized sub-3-hour marathon training routine

Jonas Deichmann’s Challenge 120: 120 long-distance triathlons in 120 consecutive days

My journey to running a sub-3-hour marathon

My pursuit of a ticket for the Western States 100 Endurance Run

My experience at the massive CCC in Chamonix, France

My journey towards qualifying for an IRONMAN World Championship slot in Hawaii

Ruben Best on Instagram

Nils Goerke on Instagram

Nils Goerke on Wikipedia

Pushing Limits Triathlon Podcast

COROS official website

Triathlon Magazin’s analysis of wetsuit and non-wetsuit swim times (German)

Fusion TEMPO! ONE Tri Suit

Orca Apex Float v2 wetsuit

My Challenge Roth swim activity on Strava

COROS DURA bike computer

COROS PACE Pro GPS watch

Zwift official website

Lasse Ibert’s bike shop

Rockerplates indoor cycling platforms

My bike fitting question in the Reddit r/bikefit community

BikeRadar: how shaving your legs can save precious seconds

Wahoo KICKR CORE 2 indoor bike trainer

Zwift indoor cycling platform

The moment Sam Laidlow passes me in the official Challenge Roth video on YouTube

My Challenge Roth bike activity on Strava

My Tokyo Marathon 2026 race report

How ChatGPT helped me achieve a new personal best in the marathon

How my run streak has been going

My big Challenge Roth training day on Strava

My Challenge Roth run activity on Strava

Munich Breweries Ultra official website

My official Challenge Roth 2026 results and split times

World Triathlon Championship Series Hamburg official website

The original blog post with all the pretty pictures

EverySingleStreet Hamburg: collecting all streets in my city

How my run streak has been going

A tough ultra marathon I did: CCC on UTBM weekend in 2025

My EU Project: running all capital city marathon races of the then 28 European Union member countries

My journey to running all six World Marathon Majors

Finishing the Six-Star journey at Tokyo Marathon in 2026

My appearance at Runner’s World Podcast (German): check out the episode here

Hamburg Marathon official website

100 Marathon Club Germany official website

IRONMAN Hamburg official website

My experience at the first edition of IRONMAN Hamburg, 2017

My second time racing IRONMAN Hamburg on my 35th birthday in 2019

My blog post about Elbtunnel Marathon 2019

Sülldorfer Feldmark Marathon 2019

Billwerder Bucht Marathon 2019

The “Elbtunnel Marathon”

Berlin Marathon official website

Berliner Mauerweg Lauf race website

Flensburg Marathon race website

What it’s like to be a marathon pacemaker – at Flensburg Marathon

Lübeck Marathon

Challenge Roth official website

My experience at Challenge Roth long distance triathlon 2017

Munich Marathon race website

My experience at the massive Zugspitz Ultratrail

Nico and I running to all Munich Breweries during the pandemic

Munich Breweries Ultra with fifty people in 2025

munichbreweriesultra.beer – sign up for the notification service

Rennsteig Supermarathon

My blog post about Rennsteig 74k

Erfurt Marathon

My blog post about Erfurt Marathon

Baldeneysee Marathon race website

My blog post containing the experience I had at Baldeneysee Marathon

Steinhart 666 race website

Wesel Marathon race website

Köln Marathon race website

Röntgenlauf Remscheid race website

Trail Marathon Heidelberg

Freiburg Marathon race website

Frankfurt Marathon race website

Kassel Marathon race website

Dresden Marathon race website

Hannover Marathon race website

Bremen Marathon race website

BremenSanktPauli – 100 Miles in a Day

My report about BremenSanktPauli 2025 with close to 100 finishers

Bienwald Marathon race website

Schweriner Seentrail race website

Rostock Marathon race website

Hartfüssler Trail race website

Magdeburg Marathon race website

Spreewald Marathon race website

Düsseldorf Marathon race website

Rhein-Ruhr Marathon Duisburg race website

Kristallmarathon Merkers race website

Saarathon race website

Helgoland Marathon race website

Monschau Marathon race website

Münster Marathon race website

Harz-Gebirgslauf race website

3-Länder-Marathon race website

Running the World by Nick Butter (on my bookshelf)

Zur Bookshelf Seite

Kaufe das Buch hier

The bookshelf page

Buy the book here

Mike Monteiro’s website

His previous book “You’re My Favorite Client”

His previous book “Design Is a Job”

His previous book “Ruined By Design”

Mike Monteiro’s newsletter, the basis for the book

His design company, Mule Design

The blog post with all the pictures

My statement about the use of AI on this blog and podcast

My current time-based ambition at an endurance race

The Markdown format by John Gruber

My Tokyo Marathon race report blog post (and podcast episode)

Barcelona Marathon on Strava

My book review of Eliezer Yudkowsky’s “If Anyone Builds It, Everyone Dies”

The case for being friendly to your chatbot

Andy Masley’s research on the efficiency increase of ChatGPT queries

The bookshelf page

Buy the book here

The bookshelf page

Buy the book here

The bookshelf page

Bregman’s other book I’ve read, ‘Utopia for Realists’

Buy the book

Check out the School for Moral Ambition

The blog post with all the pictures and videos

My Marathon Majors journey overview

My Berlin Marathon 2013 report

My London Marathon 2015 report

How I accidentally qualified for Boston

My Boston Marathon 2023 report

My New York City Marathon 2023 report

My Chicago Marathon 2024 report

German blogger Patrick’s Tokyo Marathon 2025 report

The ONE TOKYO GLOBAL club

The cost of living comparison between Tokyo and Hamburg

How my running streak works

My Michelin-star enthusiast friend Dima’s Instagram

My runner friend Nicole’s Instagram

Dubai runner Sadique I met during the race

The parkrun movement

Four times Six Star finisher and deaf runner Tom