You watched the wheel slide away in the last forty minutes. Your legs were fine for the first hour. The numbers were there. Then someone lifted the pace through that long false flat and the gap opened up like a zip and there was nothing you could do about it.
You used to be able to do that move. You used to be the one opening the gap.
The maths on your side has not changed in any obvious way. Your FTP test from spring is only twenty watts down on last year. Your kilo and a half of extra weight has not appeared overnight. On paper you are basically the same rider.
You are not the same rider. You just cut the volume that made you that rider, and the bill is being presented to you in the second half of every race.
This is what Anthony Walsh's episode on cutting his training in half is about. The TrainingPeaks data, the watts lost, the kilos gained, and the part of the polarised training research that nobody wants to discuss until they live through it.
He is not selling you the time-crunched dream. He is showing you the receipts.
Listen to the full breakdown on the Roadman Cycling Podcast →
The Numbers, Without the Spin
Two years ago Anthony was 75 kilos and could hold 400 watts for 20 minutes. That is 5.33 watts per kilo. Real Cat 1 racing numbers. Top tens were normal. Wins were realistic targets across a season.
Last month, same protocol, same climb, same time of year: 370 watts at 80 kilos. That is 4.63 watts per kilo. Strong Cat 2 at best.
Thirty watts down. Five kilos up. That is the receipt for moving from 12 to 15 hours a week down to six.
Some of the five kilos is muscle from finally being able to go to the gym. Most of it is what happens when you stop burning four thousand calories every Saturday and you start eating like a person who has dinner with their fiancée instead of someone who shovels food while staring at a power file.
The result he is now racing into is not failure. He is still pinning on numbers. He is still finishing Cat 1 races. He just lurks in the bunch for the first hour and disappears in the second. He has become what he calls a one-hour specialist. Watch any regional race and you will spot the type — good wheels, good early positioning, mysteriously absent when the race actually decides itself ninety minutes in.
The Research Predicted Every Watt of It
The temptation, when you cut volume, is to tell yourself the lies. Quality over quantity. Train smarter not harder. I have years of base in the legs. How much could I really lose.
The research is unkind to all of those lines.
Anthony references Professor Stephen Seiler's polarised training work on the episode — Seiler, who advises World Tour teams and has been on the podcast more than once. The headline finding from that body of research is that performance does not decline linearly with volume reduction. The first chunk of hours you cut is genuinely cheap. The first 20 percent off the top might cost you only around 5 percent of your performance.
It is the back end that hurts. Past a 50 percent reduction, the floor starts to give way. You can hold the engine — the high-intensity sessions are still doing their job — but the foundation underneath the engine is shrinking. That is exactly the territory Anthony moved into when he went from 12 hours to six.
The structural side of the research backs it up. Athletes with more than 10 years of consistent training maintain higher baselines than the volume alone would predict. Anthony's 15 years of training built an architecture that six hours a week can partially preserve. He is living off that bank account. He is not adding to it.
The cyclist trying to build Cat 1 capacity from scratch on six hours a week is not in the same conversation. The literature there is unanimous and unromantic — the minimum to build Cat 1 capacity from a cold start is 10 to 12 hours a week for two to three years. The architecture only carries you if you built it.
What Survives. What Dies. What Moves Sideways.
The interesting part of the data is which numbers held and which did not.
One-minute power: barely changed. The neuromuscular capacity, the snap, the explosive push out of a corner — that lives in the high-intensity end of the training week. Anthony preserved that work even on six hours. The watts that win sprints are still there.
Five-minute power: down about 5 percent. A small but visible erosion at the VO2 end. Still mostly intact.
Twenty-minute power: down significantly. The classic threshold test, the one that maps most directly onto FTP, the one most riders use to track their fitness — that took the brunt. 400 to 370 is the headline number that drove the entire piece.
Durability: collapsed. This is the metric most amateurs underrate and the one that decides the second half of every race. Three years ago Anthony could hit mid-390s after 4,000 kilojoules of work. Now he cannot hit 320 watts after the same load. That is not a fitness drop. That is a ceiling drop. The fuel tank is smaller because the volume that built the fuel tank is gone.
If you want one image to hold from this episode, take the Formula 1 analogy Anthony uses. You can have all the engine in the world. If the tank is too small, you will be quick for an hour and parked on the side of the road for the rest of it.
The relationship between volume and durability is the most undersold story in amateur training. Most riders cut their long endurance ride first because it feels least productive. It is the most productive thing they do.
The Hidden Cost of "Race Weight"
Anthony does not dance around the body composition piece. The five kilos are real. The frame carries them now. The watts per kilo number tells you what that means on the climbs.
But the number on the scale is only half of the calculation.
He references Stellingwerff's 2012 work on the cost of holding race weight more than 5 percent below your natural body composition — testosterone drops, cortisol spikes, constant fatigue. At 75 kilos he was fast on the bike and useless everywhere else. At 80 kilos he is slower on the bike and present in his life.
The kitchen sustains race weight when you are burning four thousand calories on a Saturday. Race weight on six hours a week is not maintained naturally — it is engineered through chronic restriction, and the hormonal bill for that arrives quietly. The cyclist who out-trains a poor body composition strategy for ten years eventually meets the wall the research has been warning about the whole time.
If you want the deeper version of this conversation, see our piece on free testosterone and the 50th percentile rule for what happens to the masters cyclist who pushes the lean game too hard for too long.
Twelve Hours Is Not Twelve Hours
The line on the episode that lands hardest comes from a World Tour coach Anthony interviewed — the head of performance at a top team. The difference between six hours and twelve hours is not six hours. It is the naps. The meal prep. The recovery time. The mental energy. The laundry. The early nights. The Sundays you sleep in because Saturday emptied you.
Twelve hours of riding probably costs you closer to twenty hours of life when you total it honestly.
That is the trade most amateur cyclists never price properly. They look at the calendar and see a six-hour Saturday ride and think they are spending six hours. They are spending six hours plus a Friday night that quietly bows out at nine, plus a Saturday afternoon nap, plus a Sunday morning recovery spin, plus the mental tax of needing to be fuelled and slept and ready by 6 a.m.
When Anthony went to six hours a week, his Saturday looked like this: ride 7 to 10, then a full day with energy intact. Fully present. Actually able to do the things that do not involve compression socks. The trade was not just bike hours. It was the rest of his week back.
For the time-crunched amateur trying to model what training cuts will do to their life, this is the variable nobody puts on the spreadsheet. The bike hours are the visible cost. The lifestyle around the bike hours is the bigger one.
Where This Leaves You
The point of the episode is not that volume does not matter. It does. The 30-watt loss and the five kilos are the proof. The point is to be honest about what you actually want from the sport and to choose accordingly.
If you want to win regional Cat 1 races and you are under 35, the literature is unanimous. Twelve hours minimum. The early mornings. The social cost. The constant fatigue. Some riders love that life and they should run at it.
If you want to be fit, competitive at your level, healthy in your forties and fifties, and present in the rest of your life — six structured hours can hold a real version of cycling for a long time, especially if you have a base behind you. The ceiling drops. The kilos sit a little higher. You stop being the rider who lights up the back end of races. You become the rider who is still there in twenty years.
The 5 a.m. version of you who used to think 12 hours was the minimum entry fee was not wrong. He was operating on a different set of inputs. The cyclist who cuts to six hours and refuses to honestly price what that costs in race performance is the one who burns out, blames training, and quits the sport entirely. The cyclist who does the maths and accepts the trade is the one who keeps riding for life.
If you want help structuring those six hours so they actually maintain the architecture you have built, the Roadman coaching system is the place to start. If you have a specific question about training cuts, base, or polarised distribution and you want a fast answer grounded in the same library, ask the AI coach.
Listen To The Full Breakdown
The full episode, with the actual TrainingPeaks numbers and the World Tour coach context, is on the Roadman Cycling Podcast. For the polarised training research that underwrites the whole piece, see our 80/20 grey zone trap article and the deeper polarised training guide.
The honest version of training is the one where you know what each hour is buying you and what the next hour off the calendar is costing. Anthony's episode is the rare one where the data and the life are on the table side by side.
Three hundred and seventy watts happy. Four hundred watts miserable. The number on the screen is only one of the variables.
