Tom: 47W FTP gain in 12 weeks
Tom is the clearest example of the SEMIPRO durability argument: the fitness was not absent, but the training needed better structure, recovery, and intent.
+47W FTP in 12 weeks and a 20-minute PR at The Gralloch

Result at a glance
- Main outcome
- 47 W modelled FTP increase and 20-minute event PR
- Timeframe
- 12 weeks
- Rider context
- 52-year-old gravel racer training 7–8 hours per week
- Product used
- Guided Coaching
Starting point
Where this rider actually started.
Modelled FTP of 220 W, with training already happening consistently — the hours were there, the structure was not.
Roughly 7 to 8 hours a week was the realistic ceiling, so the block had to work inside that rather than around it.
Goal. Keep improving on a realistic week, and go faster at The Gralloch.
Main constraint. 7–8 hours per week, alongside work and life.
What SEMIPRO changed
The decisions behind the result.
- Three buckets every week: easy aerobic volume, one to two focused sessions, and a long ride that builds durability.
- Easy rides were kept genuinely easy, so the middle-intensity fatigue that quietly ruins the next key session never accumulated.
- Focused sessions ended on a control signal — power stable, cadence stable, effort not getting more expensive — rather than on a fixed timer. Applied once or twice in the whole block, not every week.
- The long ride carried a week-level decision rule: the hardest ride that could still be recovered from, given the fatigue already being carried.
- Consistency was the target rather than perfection. Weeks stayed intact, so no single deep day cost the following three.
Outcome
What was actually measured.
Grouped by what kind of evidence each number is. A race result, a recorded power file, a model estimate and a rider’s own impression do not carry the same weight.
Race or event result
- The Gralloch
- 20-minute personal best.
Modelled power
- Modelled FTP
- 220 W to 267 W, a 47 W change of about 21%. MFTP is a model estimate that steps up when the training files demonstrate the capability, not a tested value.
Training consistency
- Block integrity
- Twelve consecutive weeks averaging 7–8 hours, with key sessions and long rides both landing and no forced reset week after a heavy day.
What this example supports
The useful takeaway.
- Shows SEMIPRO working for an experienced adult rider, not only beginners.
- Supports the claim that better structure can unlock progress on realistic hours.
- Connects the product promise to an event result and a training block.
- Supports the durability argument specifically: the long ride was priced against the rest of the week rather than ridden as hard as possible.
Limitations and context
What this example does not prove.
- The 47 W figure is modelled FTP, not a directly tested FTP. It is evidence of a training pattern the files support, not a laboratory measurement.
- Individual result, no control group.
- Several things changed together — weekly structure, intensity discipline, session endpoints, and long-ride pacing — so no single one can be isolated as the cause.
- Tom was already training consistently before the block. A rider with a different base or training history would not be expected to see a change of this size.
- The event personal best compares two runnings of the same course. Conditions, race dynamics, and pacing differ between years.
Source material
Where this comes from.
Source video with full transcript
What 8 Hours a Week Can Do (+21% in 12 Weeks)
Full transcript
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