Day 42: Friday Threshold and a Fight Against the Elements

Well, here we are at Day 42 of the London Marathon 2025 training plan. The number itself feels significant—something about the answer to life, the universe, and, in my case, why on earth I thought running 26.2 miles would be a good idea. Friday mornings are always a battle, and today was no exception. After a long week at work, the siren call of the snooze button was almost irresistible, but somehow, I managed to drag myself out of bed at 5 am and make my way to Rochester for today's session.

The Dreaded Threshold Run

Today’s challenge was a threshold run, a session I have developed a particular aversion to. It’s not the distance or even the route, but the sustained effort that makes these runs feel like a prolonged negotiation between mind and body—one in which the body strongly objects but ultimately concedes. My Garmin Forerunner 955, ever the bearer of harsh truths, confirmed that these sessions are a relentless test of both physical ability and mental resilience.

The goal: a 16-minute effort at a heart rate between 165 and 170 bpm. That might not sound like much, but at 5 am, with a wind that felt like it had been personally sharpened for the occasion, it was a battle. My legs, clearly having formed a union overnight, had serious reservations about the whole affair.

Pushing Through the Pain

Despite their protests, I pushed on, focusing on maintaining my pace and keeping my heart rate in check. My route choice played a significant role in keeping me accountable—much like on Day 34, once I was committed, there was no easy way to turn back without a significant loss of dignity. As I hit the base of Maidstone Road, leading up to The Math School, the incline added insult to injury, but I dug in, driving my legs forward one step at a time.

Improvement often disguises itself as exhaustion, and experience has taught me that knowing when to push through the discomfort is the key to progress. By the end of the effort, I was spent, but the small flicker of accomplishment was enough to make it all feel worthwhile—eventually.

The Aftermath and the Weekend Ahead

With the run completed, the rest of the day blurred into a series of tasks, meetings, and moments where I was pretty sure I was upright purely out of habit. Marathon training, I’ve realised, is much like a wizard’s spell—it takes an enormous amount of energy, requires precise timing, and if you get it wrong, there’s a fair chance of disaster.

For now, I’m looking forward to the weekend—not for recovery or rest, but for the long run on Sunday that looms ahead. No respite, no easy miles, just another step in the marathon journey. But then again, normal people don’t get to experience the oddly satisfying thrill of surviving another week of marathon training. So, on we go.