The riders who finish a sportive with their best legs of the season did the same thing. They peaked deliberately. The riders who finish dropped, bonking, or just "off" — most of them trained hardest in the final fortnight. The work was there. The timing wasn't.
Peaking is not a mystery. It is a structured drop in volume against a deliberately maintained intensity, timed so the freshness arrives on the day and not three weeks too early or two days too late. This is the twelve-week framework we use with Not Done Yet coaching members targeting a sportive between four and eight hours long. The block structure is conservative on purpose; the riders who make this work train around full-time jobs, families, and the recovery profile of an adult, not a U23 prospect.
The four phases
Twelve weeks split four ways. Each phase has one job, and the previous phase's job has to be done before you move on.
Weeks 1-4 — Base block. The job here is aerobic durability. Most volume the plan will see, almost all of it at low intensity. One threshold session per week to keep the door open on the upper end; nothing else hard. If you skip the base, the build will not stick.
Weeks 5-8 — Build block. Two hard sessions per week. Sweet spot intervals stretching to longer durations as the weeks progress, plus threshold work specific to the demands of your event. Volume is high but starts to plateau. The longest ride of the plan — usually the same duration as your event — lands in week 7 or 8.
Weeks 9-10 — Sharpen. Specificity. Volume holds, intensity sharpens. The climbs, the surges, the pacing demands of your actual event start showing up in the file. The longest ride backs off slightly. This is the phase where you stop training for a generic "harder" and start training for the specific event.
Weeks 11-12 — Taper. Volume drops 40-50%. Intensity is held with two short, sharp sessions. Recovery work continues — sleep, fuelling, easy spinning — and the body finishes adapting to the load you stacked into the previous eight weeks.
The hardest week of the plan is week 8. That is non-negotiable. If the hardest week is week 11, your form will not be there.
Phase one: base, weeks 1-4
The base block builds three things: capillary density in the working muscle, mitochondrial volume, and fat oxidation at sub-threshold intensities. None of this happens at intervals near your FTP. It happens in zone 2 — heart rate around 70% of maximum, RPE around 4 out of 10, the pace at which you can hold a full conversation.
Prof. Stephen Seiler's research on the polarised model is the durable signal here: across endurance athletes, performance correlates with how much time is spent low rather than how much is spent in the grey zone where hard becomes "comfortable hard." For an amateur with eight to twelve hours a week, that means 80% of weekly time in zone 1 or 2, 20% in zone 4 and above, and as little as possible in zone 3.
A typical week in the base block:
- Monday — rest or easy spin, 45 minutes zone 1.
- Tuesday — endurance ride, 75-90 minutes zone 2.
- Wednesday — strength session in the gym (we'll come back to this).
- Thursday — threshold session. 2 × 12 minutes at 95% of FTP, 6 minutes recovery. The only hard session of the week.
- Friday — recovery spin or rest.
- Saturday — long ride. Starts at 2.5 hours in week 1, builds to 3.5-4 hours by week 4. Mostly zone 2; a few short sweet-spot pushes once the duration is comfortable.
- Sunday — endurance ride, 90-120 minutes zone 2, or recovery.
Total weekly hours: 8-11 in week 1, 11-13 by week 4. Total intensity: one threshold session, plus the optional sweet-spot bursts on the long ride. That's it.
The temptation in this phase is always to do more hard riding. Resist it. The riders who arrive at week 5 having burned themselves out on intervals are the same riders who collapse in week 9 when the work that actually matters starts.
Phase two: build, weeks 5-8
The build block is where the watts come from. Two genuinely hard sessions per week, plus the long ride, plus strength.
The two key sessions:
Session A — sweet spot intervals. Start at 4 × 8 minutes at 88-93% of FTP in week 5. Progress to 3 × 15 minutes by week 8. Recovery between intervals is roughly half the work duration. This is the session that builds the durability of your lactate threshold — the watts you can hold for an hour without falling off.
Session B — threshold or VO2. Alternate weeks. Threshold weeks: 2 × 20 minutes at 100% of FTP, 8 minutes recovery. VO2 weeks: 6 × 3 minutes at 115-120% of FTP, 3 minutes recovery. The VO2 weeks raise the ceiling. The threshold weeks make the ceiling sustainable.
The long ride in weeks 5-8 builds toward the duration of your event. Your longest ride should sit at, or slightly above, the expected event time, and should land in week 7 or week 8 — never later than week 8. If the event is six hours, ride six hours one weekend in this block, with realistic event-pace effort and event-specific fuelling.
Volume in this block: 11-14 hours weekly. Intensity is real. Recovery — sleep, fuelling, easy days — stops being optional.
Joe Friel's framework on overload-recovery cycles is useful here: three weeks of progressive load, one week of partial recovery, then progress again. We typically run a 3:1 cycle for masters cyclists, with the recovery week landing on week 7 or week 8 if needed. Younger or more durable riders can run 4:1; that's a small minority of the roster.
Phase three: sharpen, weeks 9-10
By the end of week 8 you have aerobic base, threshold durability, and a VO2 ceiling that didn't exist in week 1. The sharpen block converts that fitness into something race-specific.
What "specific" means depends on the event:
- Climbing sportive. Long sustained climbs at threshold, repeated. Practise the pacing on the long ride — find a 20-30 minute climb and ride it twice a week at goal effort.
- Flat sportive or gran fondo. Group-ride surges, paceline efforts, the ability to recover from a 30-second over-threshold push without collapsing. Add 8-10 sets of 30 seconds hard, 30 seconds easy ("Tabata-style" but at sub-VO2 intensity) inside a longer endurance ride.
- Mixed event. A bit of both. Climbs Tuesday, surges Saturday.
Volume holds at week-8 levels for week 9, then starts to settle in week 10. Hard sessions stay at two per week but become more event-specific. The longest ride drops slightly — 20-30% off the week-8 peak — to start gathering the freshness that the taper will lock in.
Phase four: taper, weeks 11-12
The taper is the phase amateur cyclists most consistently get wrong. They drop too much intensity. They drop volume too late. They sneak in one last hard ride the Wednesday before because the legs felt good.
The taper that holds up:
Week 11.
- Total volume: 60-65% of week 9 volume.
- One key session early in the week — short threshold or sweet spot, 2 × 8 minutes at FTP, 6 minutes recovery. Total work time, 16 minutes. Total session time, around 75 minutes.
- One short session of openers mid-week — 3 × 1 minute at VO2, 3 minutes easy. The point is nervous-system priming, not adaptation.
- Long ride drops to 60-70% of peak duration.
- One full rest day, two recovery spins.
Week 12 — the race week.
- Volume drops to 35-45% of week 9.
- Monday or Tuesday — easy spin, 45-60 minutes, mostly zone 1.
- Mid-week — the openers session. 45 minutes total, including 3 × 90 seconds at threshold and 3 × 15 seconds at sprint effort, separated by easy riding. The legs should feel sharp afterwards, not tired.
- Two days before the event — short easy spin, 30-45 minutes, including 3 × 30 seconds at race pace just to remind the body what's coming.
- Day before — most riders go easier than they should. A 45-60 minute spin with two or three short bursts (3-5 minutes total of efforts from threshold up to VO2) wakes the legs without adding fatigue.
What you do not do in the taper: chase a personal best on a Strava segment. Sneak in an extra long ride because the weather was good. Try a workout you've never done before to "test" the form. The work is done. The taper is the patience phase.
What the file should tell you
A good taper is recognisable in the data. Resting heart rate drifts back toward your usual baseline. Sleep quality holds or improves. Body weight is steady — you're eating roughly the same and moving meaningfully less, so a small uptick is normal. Power on shorter efforts feels easy at the wattage that felt hard a week earlier. The openers ride feels almost annoyingly easy.
If your TrainingPeaks file shows TSB drifting positive in the final week, the taper is doing its job. TrainingPeaks Premium is the standard the coaching world runs on, and the chronic / acute / form curve it surfaces is the cleanest signal an amateur cyclist has on this question. Roadman's coaching plans push directly into TrainingPeaks for this reason — the same Vekta plans the Not Done Yet coaching community uses.
On race day
Three things worth knowing.
Warm up. A flat sportive needs less warm-up than a hilly one with a hard early climb. For a flat day, 15-20 minutes is enough. For a day with a sub-30-minute climb in the first hour, ride for 25-35 minutes including a few short threshold pushes; you do not want the first hard effort of the day to be the first 30-second over-threshold surge of the climb.
Pacing. Your goal is even effort, not even speed. On the climbs, that means watts steady, not "harder because it's a climb." On the flats, it means working in the group rather than spiking off the front. The riders who blow up at hour four almost always rode the first hour 5-8% over their sustainable pace.
Fuelling. 90 to 120 grams of carbohydrate per hour from the start of the event, not from when you feel hungry. Hydration and sodium according to your sweat rate. The body cannot fuel a six-hour effort from glycogen alone, and there is no medal for under-fuelling. The work is in the file; the result is in the bottle.
What this framework will not do
It will not turn an eight-hour-a-week rider into a national-level age-grouper. It will not compensate for poor sleep or chronic stress. It will not work if the base block is skipped — the entire structure rests on it.
What it will do, run consistently across twelve weeks, is put you on the start line with form that is actually there. The plan is conservative because the riders it is designed for cannot afford to over-train. Conservative is what works.
If your last sportive ended with you bonking, dropped, or just feeling flat — the framework was probably the part that broke, not the legs. Most amateur sportive failures trace back to the same place: the work was there, the timing wasn't.
The framework that holds up is the one that puts the form on race day. Anything else is a rider who got fit, then got tired.