7 days ago

Swiss Trail Tour, Day 3

Punishment. Today’s theme is voluntary punishment. The last stage of this footrace is framed by rain and snow. After two days of sunshine tralala, the adventure gets a new facet. Impressions from Day 3 of the Swiss Trail Tour.

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7 days ago

Swiss Trail Tour, Day 2

The longest stage of the Swiss Trail Tour is awaiting me. Spirits are still running high, although my legs remember the effort from the previous day. How is it going to turn out today? Impressions from Day 2.

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7 days ago

Swiss Trail Tour, Day 1

Nine months after signing up, after nine months of training, race day has finally come. Spirits are running high. I can’t wait for the start of this footrace. What does the first day have in store? Only time will tell. Impressions from Day 1 of the Swiss Trail Tour.

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163 days ago

Swiss Trail Tour, Darth Vader on a Treadmill

What does Darth Vader do on a treadmill? Breathe, breathe, breathe. This week, I treated myself to the futuristic world of performance diagnosis: I wanted to learn more about where I am as a hobby runner, how to improve from there, and how applied science in sports works nowadays.

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177 days ago

Swiss Trail Tour, Incorporating Objective Feedback

Without feedback, you can only achieve what you already know how to do. With feedback, you can achieve what that you do not yet know how to do. I believe that feedback loops are at the core of any development. In this post, I am sharing my thoughts on incorporating objective feedback into long distance running training by visualizing data from Strava in Google Data Studio.

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193 days ago

Swiss Trail Tour, Training Differently

After more than a decade of running, I figured it’s time to understand how training actually works. Unsurprisingly, after digging through three books on the art and science of exercise, I have changed how I train for the Swiss Trail Tour this year. Maybe such research will change your training, too.

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227 days ago

Swiss Trail Tour, Beginning or Comeback?

Having signed up for the Swiss Trail Tour in September, I am wondering whether this is a comeback to ultra running, or rather the beginning of something else? Either way: why do this, and how to prepare for three days of trail running─and hiking─a total distance of 103 km and 6000 m elevation gain?

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460 days ago

A not-so-serious SARIMA forecast for running in 2020

Just for fun: what happens when you fit a SARIMA model (using statsmodel) over past Strava running activities in order to predict remaining running distance in 2020? Not much happens beyond the nourishment of my interest in predicting time series.

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464 days ago

Some hills, finally

In the past years, finding some way to train hill running prior to races was difficult for me. I tried office staircases but they were boring and the air was dry and stuffy, so I failed to follow my training plan. Ever since moving to Switzerland, this is no longer a problem. I ran some statistics over activity data pulled from Strava, and the results are promising.

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484 days ago

A computer scientist's diagram of the systems that turn macronutrients into energy for the muscles

How do the macronutrients we eat─carbs, fat and protein─turn into energy that the muscles can use as fuel? How to answer this question without failing to see the forest for the trees? In this post, I am trying myself at a high-level abstraction based on the book Lactate Threshold Training by Peter Janssen.

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491 days ago

A computer scientist's diagram of heart and lung supplying the muscles with oxygen

What happens if a computer scientist tries to understand more about the heart and lung supplying the muscles with oxygen? The computer scientists applies graph theory. Out comes the flow conservation principle, and─woosh─there’s a diagram relating cardiac output, oxygen consumption and oxygen intake.

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794 days ago

The staircase up Mount Everest, an office workout

No need to climb the ladders up Mount Everest if you have the staircase of an eleven-floor office block to scale. This staircase is going to replace the hill training for me in the months to come. Around 8890 meters over 2068 floors in 17 weeks. Let’s see how difficult that is.

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966 days ago

Running the North Downs Way─XNRG Pilgrim's Challenge 2019

Postcard-Britain! The 66 mile race course took me from Farnham over the very pretty & snow-covered North Downs, until the snow subsided and was replaced by mud, past Box Hill until Redhill and back the next day. This post is about the madness that is required to enjoy such an adventure, and the odd things that you might encounter.

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1017 days ago

Runsightseeing: Thirteen London parks in a day

London has so many parks. Today, I managed to run and visit thirteen of them on an extended sightseeing trip, discovering various artwork while doing so, and passing through many different neighbourhoods. I failed to complete the XNRG Santa Virtual Ultra Challenge, but I regret nothing.

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1037 days ago

Running the Ridgeway─Druid's Challenge 2018

A comeback to the world of ultra-running. This time, I ran (and walked) the Ridgeway from Tring to Swindon in three days as part of the XNRG Druid’s Challenge.

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1240 days ago

Run to work—Notes on kilometer 124

In the last five weeks: 15 run-commutes completed, 124 kilometers logged, £43.50 saved on public transport. The trick? Always having my kit ready the night before.

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1277 days ago

Run to work, revisited

With my recent move to East London, running to work has become a topic again. Surprisingly as it may sound, getting the logistics right is the hardest part. Here is my plan on my comeback to run-commutes.

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1402 days ago

A Walk in The Woods: 2017 Edition of Wendover Woods 50

After having watched the second half of the film adaptation of Bill Bryson’s A Walk in The Woods, I can’t help but spot the remote similarities: an ambitious challenge, an uncompleted journey through the “woods”, and a literary attempt to explain the adventure. In my case, I gave up during a footrace of 50 miles and about 3000 m elevation gain, known in the runner’s world as Wendover Woods 50.

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1451 days ago

Lakes in a Day: I've dunnit, finally

Finally my dream has come true, even though things were different than imagined: A race report of Lakes in a Day, traversing the Lake District in 50 miles with 4000 m ascent.

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1610 days ago

Running the XNRG South Downs Devil's Challenge 2017

It’s bank holiday weekend in the UK. What better thing to do than joining a bunch of nutters for a three-day foot race from Winchester to Eastbourne, covering 156 kilometers and many hills? I could not come up with a better idea, so here is how it went.

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1627 days ago

Garden of England: Running from Ashford to Canterbury

This Saturday, I decided to explore the North Downs Way between Wye and Canterbury. A trip report touching many things: navigating with phone and compass instead of maps, public footpaths and plough teeth, explosives and barbed wire, parking lots in unexpected places, and oceans of bluebells.

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1717 days ago

Country to Capital 2017: Resurrection

The annual Country to Capital race takes a few hundred enthusiasts from Wendover to London Paddington in what is said to be the opener of the ultra marathon season. There are stark contrasts between country and capital, and it was interesting to observe the gradual transition.

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1766 days ago

Wendover Woods 50: First Ultramarathon

November. Saturday. Dark, foggy, chilly. These were the conditions for around 200 loopy runners to set off on a loopy five-lap course through the small, pretty & hilly Wendover Woods. 50 miles later, and after arduous 3000m of ascent, I got a fairly thorough taster lesson in ultrarunning.

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1850 days ago

Enham Alamein: Andover Trail Marathon

This weekend, I traveled down south from London to participate in the newly setup Andover Trail Marathon. The start and finish was in Enham-Alamein. A place that caught my attention – El Alamein? Historical and personal battles.

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1914 days ago

The Hitchhiker's Guide to the Giants Head Marathon

On the last weekend in June, I ran (and walked) the Giants Head Marathon in West Dorset. Well-organized, welcoming, laid-back, and not so simple to get to. Highly recommended.

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