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Bob Joziasse

NN Marathon Rotterdam 2026

Ik ren tegen kanker tijdens NN Marathon Rotterdam 2026

I’m running the Rotterdam Marathon not just for myself, but for everyone touched by cancer.

I’ve lost friends and family to this disease, and it’s heartbreaking how common it has become. I don’t want my son to grow up in a world where cancer keeps taking so many lives. That’s why I’m running for his future, and for everyone who is fighting today and will fight tomorrow.

By supporting me, you’re helping fund vital research and care. Together, step by step, we can move closer to a world where fewer families have to say goodbye too soon.


Mijn updates

My big supporter at the finish line

Monday 13th Apr 2026

Rotterdam Marathon. 5:20:40. Done.

Monday 13th Apr 2026

Did everything wrong on heart rate. Started too fast, paid for it after km 30, spent most of the race way above where I planned to be. But here’s the thing: I finished. And my muscles feel fine.

What carried me through was Chi Running. Every time it got hard, and it got really hard, I had somewhere to go back to. Lean. Relax. Let gravity do the work. Focus on form instead of the pain. It became a mantra in the second half. When the legs started complaining, the form held. Tendons and ligaments are sore, which apparently is exactly what should happen when you run with your skeleton and not your muscles. I’ll take that trade.

I doubted this training approach a lot. I trained on time, not distance. I never once ran 30km in preparation. There were weeks I was genuinely unsure if any of it was going to hold together on race day. It did. The aerobic base, the form work, the zone training, it all showed up when I needed it.
Grateful for the course, the crowds, the volunteers, the people who supported this journey. Grateful for a training structure that gave me something to trust even when I didn’t fully trust it myself.

First marathon. No injuries. That’s the result that matters.

Tomorrow is the big day

Saturday 11th Apr 2026

I’m ready. All those kilometers that I’ve trained staying in zone two. All those long runs, all those times it was raining or very cold. All these hours in kilometers of training are in my system and tomorrow Will be the day that I will test the results.


The days and weeks leading up to the big race are interesting to say the least. The taper phase means that you slow down and just keep active but don’t add too much extra effort. And now today, the day before the race and yesterday I’m eating sugars, pasta etc. Blend and carbohydrate which food. Which feels so counterintuitive, because it doesn’t feel healthy. You feel like you’ve trained all these months for this big thing and now you’re just eating unhealthy stuff, but it’s important, it’s important to add these extra glycogen to your muscles. Assuming that tomorrow it will all burn away 😄

Some of the long runs were tough. I even had an injury But luckily not so heavy and fixable.

And now, I’m ready. I’m ready for tomorrow. The race will tell me what to do. I have my knowledge, I’ve build up my skills and I trained my body, now it’s execution.

Thank so much for your support! It helped me so much!

Crossing the eighteen mark

Sunday 7th Dec 2025

Today’s 18 km felt like one of those quiet turning points. Not because it was fast, or heroic, or dramatic, but because it was steady. More than two hours of holding a rhythm, breathing easy, letting the kilometres pass without forcing anything. My heart rate rose right away, the way it always does, but instead of fighting it I just settled into the pace my body wanted. For the first time, it felt like I wasn’t chasing control, I already had it.

What surprised me most was the mental side. This weather should’ve made it easy to stay home, yet I laced up anyway. And honestly, that’s because of everyone who supported my fundraiser for KWF. Knowing people backed me, not just with money but with trust, adds a kind of quiet pressure. A good pressure. The kind that makes you show up on days where you’d normally skip. I’m carrying that with me on every run.

The route rolled a bit, the cadence dipped at the end, and the calves complained in those last twenty minutes, but that’s all part of the process. The important thing is that the effort stayed even, the breathing stayed soft, and I finished without strain. Eighteen kilometres. A number that would’ve felt impossible not long ago, now it feels like a sign of what’s coming.

Thanks again for the support. It’s shaping this journey more than you know.

Yes, we have reached the goal!

Saturday 4th Oct 2025

The goal of €750 is officially reached. Thanks to all of you by supporting and donating to KWF. This means I can run the marathon coming April 12 in Rotterdam, a long time dream of mine. But it also means that KWF and now has more funds to help them in their research against cancer and providing better care for those fighting against the disease.


I am so grateful for each and everyone of you who decided to take the time and donate to my fundraiser. Thank you so much!

Bob

Yes, we have reached the goal!

Saturday 4th Oct 2025

Training and thankful

Monday 29th Sep 2025

I'm almost there, €650, just 100 to go. And it's all things to my supporters. I'm super grateful for all the support and messages that you guys left.

Currently, I'm training almost every day. I'm focusing on my heart rate and trying to stay in a zone two which is the aerobic zone. This means that I'm training my body to be able to go on for a long time without burning too much energy. It feels slow, but it's super important and I'm able to control any drift.

Next up is to alter my training a little bit to add some more sprint to get the pace up.

I'm very confident that I'll get there and that 12 April will be my first debut on the Rotterdam marathon and a marathon in general. Really looking forward to it and having all your support really does make a difference.

Thank you guys so much!

Bob

Wow, you guys showed up!

Wednesday 24th Sep 2025

Within half an hour I got two more than 50%, and that’s all because of you guys and your willingness to support me and the KWF.


I am so grateful that you took the time and effort to show your support. Thank you so much 🙏🏻

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