Sunday will be race day for me.
I am running the **Nord Trail Monts de Flandres**, a 115km trail running race in the hills of the border region "Heuvelland" in West-Flanders and Northern France.

In case you want, you will be able to follow me:
- ferret tracking: https://ferrett.io/u/teufen/ntmf25
- here: #ntmf25

#running #trailrunning #ultrarunning

Tracking link for the Northern Traverse is now open. Race starts 08:30 Saturday UK time. I’m bib number 73. Watch out for Damian Hall (bib 76) who is aiming to break the course record. Conditions look great but cold at nights. Excited and nervous in equal parts. Nowhere to hide now so I just need to deliver a finish, probably some time next Wednesday. #ultrarunning #ultramarathon #running #NorthernTraverse https://live.opentracking.co.uk/northerntraverse2025/

I just finished reading Aurélien Sanchez's after race report on his Barkley Marathons finish in 2023.
What a great story! Well narrated, it brings the reader completely in the Barkley's atmosphere. (Or what I could imagine it is, as I have never experienced this first hand).

Highly recommended!

#running #ultrarunning #trailrunning #bm100

✅ Wayout Backyard Ultra | 20 hours | 134K

Most of you already know by now; I had a wonderful (trail) backyard race. It started Friday at 20:00 where it was dark. Then we ran through the night and morning. And a bit more. I stopped after 20 hours with good legs and good mood. TBH: I was just very tired and mentally I didn’t have the attitude to keep on. Family time called 😆(and food/sleep).

Unbeaten social event: ⭐️⭐️⭐️⭐️⭐️

https://strava.app.link/SfswlF6E9Rb

#trailrunning #running #ultrarunning

https://www.youtube.com/watch?v=PgTEsybXw-4

#running #trailrunning #ultrarunning #documentary

Just came back from my long run. It was the first time ever, that I run at night. Started 8pm and came back 11:40pm. Feeling was good. Maybe because of the string coffee before start :)
I also tested 2 gels (high five and powerbar) and one bar (Xenofit). The powerbar gel caused some hickups in the stomach, whereas the Xenofit bar was hard to bite, but felt good once it was "down".
#running #ultrarunning

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The bar and the two gels I tested today

🍿🎬Right now on YouTube: Chianti Ultra Trail by UTMB

Kilian and Jim Walmsley racing against each other 🫨🍿🥤

https://www.youtube.com/live/v7WbrY78iGY

Here’s a link to the utmb race site:

https://live.utmb.world/chianti/2025/UTCC

#running #trailrunning #ultrarunning

New race from the makers of Legends Trail:
- distance between 60km and 160km
- no information about checkpoints
- start hour and location is known
- It's in the Ardennes, near Vresse-sur-Semois (beautiful valley)

https://www.benibenin.be/nl/eaudyssey_en

#running #ultrarunning

10 days ago, I ran (part of) Legends Trail.
Now I wrote about my experiences.

https://teufen.be/2025/03/10/Legends_trail.html

#running #trailrunning #ultrarunning

To try something new, I ordered a testpackage with multiple energy gels.
Step 1: Get all the data and put in a spreadsheet
#running #ultrarunning

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Energy gels and a spreadsheet

First 30k long run this morning. I forgot to load my headphones, so I ran without any sound, just my thoughts and me (and a few earworms). It was quite cold and dark because started at 3:45 a.m.
Also finished finished testing High5 energy gels: They are a bit hard to open, but taste yummi.
#running #ultrarunning #runnersofmastodon #mastodonlauftreff

Preparing food packages per CP. #LT2025

#running #ultrarunning

Friday at 19:00 CEST, together with 145 others, I will be taking the start of the Legends Trail. On the menu: 275km with 11.500m of elevation gain in the Ardennes.
The training is done. I am feeling strong and confident.

This week is for packing, eating, sleeping and some shake out runs.

If you want to follow me, head over to my personal Ferrett page: https://ferrett.io/u/teufen/LT2025
And/or follow the #LT2025 hashtag.

#running #ultrarunning #trailrunning

NSL beach race went great this morning.
Nice weather (🌞), good company and great legs 👌.
It has been a while since I have been racing and the result today where a great confidence booster. Happy Camper!😊

#running #ultrarunning #mastorunNL

https://www.strava.com/activities/13703947071/shareable_images/image?token=eyJhbGciOiJIUzI1NiJ9.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.wAm2-TslZYEb7kyJKGCt5yYUBTBPVBwWFIDhAwgv2G4&hl=nl-NL&utm_source=UNKNOWN&utm_medium=referral

A nice article that I should have read before my 50K race last month. 😛

Transitioning From a #Marathon to a #50K
https://news.ultrasignup.com/transitioning-from-a-marathon-to-a-50k/

#running #trailrunning #ultrarunning

Typically I start my longer runs early on Sunday morning.... but how did this "early" changed during my life?
I checked my data back until 2011 and sorted out all runs on a Sunday and plotted them: It startet with a start time at around 8 a.m. and declined over time until today to a start time at around 4:30 a.m.
What's your start time and did this also changed over the years?
#running #runnersofmastodon #ultrarunning

Wish I had a qualifier in place 🙃. Since I heard about this race on one of my running audio books 📚 I must say it spiked a certain interest.

Last year I did participate in a 12h race to see if I could keep up the pace long enough … but that was when the heat got to me and my system shutdown (crazy noob experience btw). Only ran ~100K there.

I have other major races this year that practically cannot be used as qualifiers either. Another year perhaps 😆

#running #ultrarunning

Today and tomorrow is adventure time!
I am now sitting on a train to Marloie, where I will start to run a 130km loop using the Transfamenne and part of Transardennaise long distance paths.
Full pack with sleeping system, spare clothes, food and drinks, medikit, waterproof pants and jacket, ...
Good for 7.5kg. (I ditched the stove and hot meal)

If you want to follow me: https://ferrett.io/u/teufen/TT

I will also post updates here with #TT130

#ultrarunning #trailrunning #running

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An overview of the content of my pack for this ultrarun.

🏃🏻‍♂️DUV Profile | Deutsche Ultramarathon Vereinigung

Huh 🤔 I am apparently a total ultra rookie still; recently I discovered I have a profile with races on DUV (see title 😆). I had two so I asked them to join them. So here it is:

https://statistik.d-u-v.org/getresultperson.php?runner=2012387

There’s 10 ultra races registered 😎😀🤠

I naturally already added it to my Mastodon profile. Next to other fine running profiles, including my UTMB and ITRA profiles 🤗🏃🏻‍♂️

#running #trailrunning #ultrarunning

You can actually see the loop on the Denmark 🇩🇰 map 😆

#ultrarunning #running

👏🏻100+ Road ish run | LNBK Ringkøbing Fjord Winter Edition 2025

7th of 34 finishers (40+ starters). Some were still out there 2h30m after I finished. I am home again - legs are busted. Proud with the result.

The finishers before me were very good 🤯 - kept up with most of them the first 30+ ish but had to fallback; the pace wasn’t sustainable for me. 10K before the finish line I passed 1 of them (gone cold).

🏃🏻‍♂️ https://strava.app.link/9VdGY2eU4Pb
#running #ultrarunning

My training for the 100miles in August starts next week. For that, I try some recommendations from Jason Koop:
- Focus on Intervals and Tempo at the beginning and endurance at the end of the plan
- Start the training block with the hardest workout and then reduce to the next week

See how this works for me. Has anyone tested it?

#running #100miles #mauerweglauf #jasonkoop #ultrarunning

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My trainingplan on a piece of paper

Breaking news: mozart 100 by UTMB 🤠🤭

I decided that I will visit Austria 🇦🇹 in June and take on the longest mozart 100 by UTMB challenge.

It will be totally alone. Just like my first “by UTMB” race in Croatia 🇭🇷 some almost 2 years back. I would love to bring my family … but it’s not super practical in terms of vacation days and economy. So alone it is (slightly nervous in a good way… excited is probably a better expression).

#running #trailrunning #ultrarunning #utmb

2024 Running Wrap Up

Had the wildest running year (again 😆). Ran 8 ultra races. Including the 100K UTMB CCC with 6K EG. And my first 100M - Kullamannen by UTMB 🇸🇪. Also my first Backyard Ultra (17 🔄). And my first 12 hour race (~100K). All wonderful formats 🤩

Also renewed most PRs on all major distances. Most proud of my sub 90 min half marathon (🤯). Couldn’t do that today 😆

Thank you 🙏🏻 for this wonderful network. So fantastic to be part of 💚

#ultrarunning #running #trailrunning

First run of the year. Things are really starting to get exciting now with 3 weeks to go until the ARC-50M. In 2 weeks we will travel to the UK for a week of relaxation and exploration of the course. Fingers crossed that everything stays intact until then.

#ultrarunning #running
https://strava.app.link/8BmwEqaDPPb

Great fun run in the Ardennes. Solo & unsupported.

I had to make some detour because of hunting going on. Luckily I was navigating on a map, so it was easy to define the detour.

#running #trailrunning #ultrarunning

Anybody entering the lottery for UTMB 2025?

(I am not this time. Primary focus is Kullamannen by UTMB, a few months after)

#ultrarunning #trailrunning #running

Peeking over at “2024 IAU & WMA 100 KM WORLD CHAMPIONSHIPS FINAL” because we have a Danish team participating there. First one in. Others close. Have been 8 hours ish now.

A personally voting for successful races for Poul and Emil. Poul is an RD for a race I did earlier this year. Emil I’ve met on a 12h race (he did 24) earlier this year too. Both great folks 🤠🏃🏻‍♂️👏🏻

https://www.racetecresults.com/teams.aspx?CId=20297&RId=91&EId=1&TId=7

YouTube live stream (seems broken right now)

https://www.youtube.com/live/wRnigmG0zc4?si=HgsaqQT8MM7gAp3y

#running #ultrarunning

🏃🏻‍♂️My (adjusted) running goal is to end the year at ~4800 kilometers.

I’m currently at ~4570. So I do have to work for it. But I feel it is doable given my current weekly volume.

If I achieve this, then it will equate to:
- 400 kilometers per month
- 90+ kilometer per week

Those numbers are difficult for me to comprehend tbh 😂. I cannot believe I have run so much this year 😆. I mean … even now, reaching 90K+ requires solid dedication 🙃🏃🏻‍♂️

#running #trailrunning #ultrarunning

Last Sunday, @pjaspers and I went on an adventure in eastern Belgium: we ran (a big) part of Venntrilogie.

I wrote a post about it:
https://teufen.be/2024/12/04/Venntrilogie.html

#running #trailrunning #ultrarunning

5.5 miles on the road this evening with a couple of miles at threshold pace. Last hard workout for a while. Perhaps a couple of very short, easy runs now before https://centurionrunning.com/races/winter-downs-100-2024 next week. the race weather forecast does not look too bad at the moment👍🏼 #UltraRunning #ultramarathon #running #trailrunning

And here’s my advent gifts 🎁🎄🏃🏻‍♂️🤩

That phone cover is 🥳. And my ultimate Christmas coffee cup ☕️🤗. And for hot chocolate ☕️🍫

#running #trailrunning #ultrarunning #utmb

Tomorrow, @pjaspers and I set out for a great adventure in eastern Belgium. We will run the *Venntrilogie* route, from the 3-country point (B-NL-D) in the north to Bütgenbach in the south, passing through al the beautiful nature the _Hoge Venen_ have to offer.

Start around 05:00, finish when we get there.
Tracking and comments: **https://ferrett.io/u/pjaspers/venntrilogie**
You can also follow us here with the hashtag #venn3

#runnning #trailrunning #ultrarunning

I'm currently testing Trainingpeaks and therefore have remium account but I cannot find the benefit, why I should pay 10,99 per month.
Im already calculating TSB, CTL and ATL by my own written software and the trainingplan is done via Excel (or to be clearer via LibreOffice Calc).
Can you help me? Is there a further big "wow I need this"?
#running #TrainingPeaks #ultrarunning #runnersofmastodon #mastodonlauftreff

Kullamannen 2025 - Here I come 🤠🏃🏼🏃🏼🏃🏼🏃🏼🏃🏼🏃🏼

#running #ultrarunning #trailrunning

Kullamannen - less than 100 spots available 🚨

#utmb #running #trailrunning #ultrarunning

🗓️ 2025 Race calendar (running)

These are my 2025 races - paid for 💸. Very much TBC 🤠

#running #trailrunning #ultrarunning

Just registered for my first 100mile race: The Mauerweglauf. A course along the former Berlin wall in August next year. Looking forward to it, since it will lead me to trainings and distances I've never done before.
#mauerweglauf #ultrarunning

🏃🏻‍♂️🪨🪨🪨🪨✅

Thanks to Kullamannen by UTMB my account now has been replenished a bit 👌🏻🤠⛰️🏔️🏃🏼💨

#running #trailrunning #ultrarunning #utmb

✅ Kullamannen by UTMB - 100 miles

Old news by now 🤪. Thanks dear Mastodon network for the endless kind support and positivity 🥹. I’ll share some unique photos from today - hot off the press. My recovery lunch in IKEA 🇸🇪😂 and my precious new ring 💍. Additionally a collection of fun Kullamannen bracelets that were handed out during the race 🤠🕺🏼.

(Yes I’m going to eat that bag of chips and much more. Much much much more 😆👏🏻)

https://strava.app.link/6JINSsW6dOb

#running #trailrunning #ultrarunning #utmb