You build a plan. The Plan page shows a starting Fitness, a target Fitness and a ramp. The target looks modest. It might even be lower than a number you hit last summer. The plan feels unambitious before you have ridden a single day of it.
The number is usually right. This is why it looks the way it does.
What Fitness is measuring
Fitness is a 42-day weighted average of your daily Load. Fatigue is the same calculation over 7 days. Form is Fitness minus Fatigue.
Because Fitness is an average of daily Load, it can only be as high as the Load you put in. It has no opinion about how strong you are. It reports how much training you have absorbed recently, weighted towards the last few weeks. Two riders with very different power numbers can carry the same Fitness. The same rider can show a Fitness of 90 in July and 55 in November. The number moved because the training moved, not because the rider became someone else.
That matters for the target, because the target is a statement about Load, not about you.
How Much Fitness Can My Hours Build?
Take the Load your weekly hours can hold and divide it by seven. That is roughly the Fitness those hours can sustain. Not for one big week, but week after week, which is what Fitness measures.
An example, with round numbers. A rider has six hours a week. Spent sensibly across easy, moderate and hard riding, six hours comes to somewhere around 300 Load. Divided by seven, that is a sustainable Fitness in the low forties. A plan that promised this rider a Fitness of 70 would be promising Load the rider has no time to do.
So a plan built on your real hours will show a ceiling. If your starting Fitness is already near it, the target will be close to where you are. If the target looks low, the first question is whether the hours are low. Building past the ceiling means adding time. There is no clever arrangement of workouts that gets around the arithmetic.
Ramp rate, and why faster mostly buys Fatigue
The second limit is how quickly Fitness can rise. A ramp of +2 Fitness a week is conservative. +3 is moderate. +4 is aggressive. Most riders absorb something in that range over a block of several weeks.
Faster ramps exist, and they feel productive for about a fortnight. The problem is the two time constants. Fatigue responds over 7 days, Fitness over 42. Adding Load moves Fatigue roughly six times faster than it moves Fitness. A steep ramp therefore sends Form deep into the negative long before Fitness has moved much. The rider feels flat and heavy-legged, the quality of the hard workouts drops, and the extra Load stops producing the adaptation it was supposed to.
A ramp also compounds with the ceiling. Twelve weeks at +4 is 48 points of Fitness. Starting from 40 on six hours a week, that runs into a ceiling in the forties within a fortnight. The plan has to cap the ramp at what the hours can carry, and the number on the page is the capped one. If you asked for more than the hours support, the honest thing is to say so next to the number rather than print a ramp the plan cannot deliver.
Why Is My Event-Day Fitness Lower Than the Peak?
The third reason is the one that catches people out. If the plan ends at an event, the last week is a taper.
A taper cuts Load hard and keeps intensity. Volume drops to a fraction of a normal week. The hard workouts get shorter and sharper rather than disappearing. Because Load falls, Fitness falls a little. Because Load falls, Fatigue falls a lot. Form, which is the gap between them, rises. Form is the number that predicts a good day. Fitness is the number that predicts a good month.
That is the whole purpose of a taper. Trade a small amount of Fitness for a large amount of freshness so you arrive fresh on the start line. A plan that ends at an event therefore shows an event-day Fitness that is deliberately lower than its peak. The peak happens at the top of the build, a week or two before. Read the end-of-plan number as the target and a twelve-week block can look as if it went backwards.
Another example. A rider starts at 48, builds to 66 by week eleven, then tapers to about 60 for the event in week twelve. The target is 66. The 60 is on purpose. The rider lines up with Form well into positive numbers, which is what the training was for.
A plan with no event has nothing to be fresh for, so it should not taper at all. It ends on a full week at peak Fitness instead.
Reading the number honestly
When the target looks low, run through the three limits in order.
- Check the ceiling. If the target sits near what your hours can sustain, the hours are the lever, not the plan.
- Check the ramp. If you asked for +4 and the page shows +3, the plan has capped it to what your hours support, and it should tell you so.
- Check for a taper. If the plan ends at an event, the target is the peak before the taper, not the number on event day.
If the target is still lower than a Fitness you have held before, ask what hours you were doing then. Fitness is a record of Load. A lower number on fewer hours is not a weaker plan. It is the same plan, told the truth about your week.
How WattPlan handles this
The Plan page shows your starting Fitness, a target that is the peak the plan reaches before any taper, and a note when your hours cap the Fitness you can build, followed by a short Coach's take on the numbers. Ramp options run from +2 to +5 a week, capped at what your hours support with the figure you asked for shown alongside. For event plans the final week cuts Load hard, with a short openers session the day before if you can ride that day, so you arrive fresh, and plans without an event finish at their peak instead.