13 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.

More ...

28 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.

More ...

62 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?

More ...

295 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.

More ...

299 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.

More ...

319 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.

More ...

326 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.

More ...

630 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.

More ...

801 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.

More ...

852 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.

More ...

872 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.

More ...

1075 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.

More ...

1112 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.

More ...

1237 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.

More ...

1286 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.

More ...

1445 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.

More ...

1462 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.

More ...

1552 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.

More ...

1601 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.

More ...

1685 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.

More ...

1749 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.

More ...

1818 days ago

To run or not to run – that is not the question

At the end of last year, I had decided to spend more time outside of London to discover the rest of the UK. In order to make that happen, I booked a few races in various parts of England. Today, on the weekend of the 400th anniversary of Shakespeare’s death, this brought me to Stratford-upon-Avon.

More ...

1981 days ago

Quantify this: Running

It’s easier than ever to track your mileage in running, cycling, and many other activities. But why would one do that? For the present self to celebrate past accomplishment?. Or to post it online here for promoting one’s virtual self? No. I want to track running mileage in order to adjust my course and correlate exercise with race performance.

More ...

2084 days ago

Getting lost in a marathon: an extra mile for free

As if the race wasn’t long enough on its own, some runners did not pay enough attention and had to run the extra mile in the Vanguard Way Marathon, a nice and challenging race on scenic trails south of London. A humoristic take on how to get more out of the race than you paid for.

More ...

2101 days ago

Run to work: Review of first year

Run to work statistics: 41 commutes, over 200 km distance covered, 17 hours spent on exercise, around GBP 86 saved on public transport, not so fresh air, and a ridiculous number of trolleys avoided by not having to go through one of London’s busiest train terminals.

More ...