CoachingAnswer

HOW DO I TRAIN REPEATED HARD EFFORTS?

By Anthony WalshRoadman CyclingUpdated 26 May 2026

ANSWER

Train repeated hard efforts by rehearsing the exact race demand: clustered repeats of 30–60 seconds well above FTP with deliberately short recovery between reps, so you start each effort before you've fully recovered. Two sessions a week for 4–6 weeks transforms how many surges you can answer. Cory Williams wins criteriums not with his peak number but with his fifth and sixth effort still being good enough — that repeatability is trained, not gifted.

KEY TAKEAWAYS

The training stimulus is the incomplete recovery — start each rep before you feel ready, because that's the race.
Clustered short repeats rehearse the surge-recover-surge pattern; over-unders train the lactate clearance underneath it.
Recovering in the draft between efforts is a tactical skill — train it in group rides, not just on the turbo.
Cory Williams' criterium racing is decided by repeated 1,000W+ efforts, not a single peak sprint.

WHO THIS IS FOR

IS THIS YOU?

The rider who answers the first attack and loses the second

You can match one surge but get shelled the moment the pace lifts again before you've recovered.

The criterium and punchy-course racer

Your events feature repeated accelerations out of corners or over rollers, and that repeatability is your limiter.

THE ROADMAN VIEW

Here's the gap most amateurs never train: you can hold one hard effort. The first attack goes, you grit your teeth, you bridge across, you're fine. Then the pace lifts again forty seconds later and you're done. That's not an FTP problem and it's not a sprint problem — it's repeatability, and the way you build it is by rehearsing the exact demand: clustered hard reps on deliberately incomplete recovery. The short rest is the whole point. Full recovery between reps just trains a single big effort.

Cory Williams is the case study that makes it land. He talked on the podcast about criterium racing being decided by the rider who can produce a hard effort, recover just enough in the wheels, and produce another — corner after corner, lap after lap. His winning power isn't his peak number; it's his fifth and sixth effort still being good enough. And crucially, half of that is tactical. Knowing how to sit in the draft and let the bunch do the work between your surges is a skill you practise in racing, not something the turbo can teach you.

Alex Welburn's critical-power framing explains the physiology: each effort above threshold draws down a finite reserve, and the sessions that grow your ability to answer repeated surges are the ones that keep dragging you back into that depleted state and asking for more. The work is genuinely uncomfortable, which is exactly why it gets skipped. Four to six weeks of clustered repeats plus deliberate draft-recovery practice in group rides is the difference between surviving the surges and being the one making them.

EXPERT EVIDENCE

WHAT THE EXPERTS SAY

Cory WilliamsProfessional criterium specialist, Legion Cycling Team
Criterium racing is won by repeatability, not peak power. The rider who can produce a hard effort, recover briefly in the bunch, and produce another — over and over — controls the race. That repeatability is trained deliberately by clustering hard efforts with short recovery, and by practising how to recover in the draft between them.
Hear it: Criterium Secrets: Get Ahead of 99% of Your Competition | Cory Williams
Alex WelburnCycling coach and physiologist; PhD researcher on critical power and W'
Each effort above critical power draws down a finite anaerobic reserve. Training that keeps returning you to the depleted state and demanding another quality effort is what builds the capacity to answer a second, third and fourth surge — the exact moment most amateur racing is decided.
Hear it: Why Your CTL Is Wrong | Roadman Cycling Podcast

PRACTICAL APPLICATION

DO THIS WEEK

Build a clustered repeat session
After a 20-minute warm-up: 3 sets of (4×40 seconds at 120–130% FTP, 20 seconds easy between reps), with 5 minutes easy between sets. The short within-set recovery forces you to start each rep before you've fully recovered — exactly the race demand.
Add over-unders for lactate clearance
12–16 minutes alternating 1 minute at 110% FTP with 1 minute at 90% FTP. The 'under' periods aren't rest — they're where you practise clearing lactate while still working. This is the engine that lets you recover in the wheels and go again.
Practise draft-recovery in group rides
On chaingangs or training races, deliberately answer every surge for the first half, then recover in the bunch and answer again. The tactical skill of recovering in the draft between efforts is half of repeatability — and the turbo can't teach it.

COMMON MISTAKES

WHAT CYCLISTS GET WRONG

MISTAKETaking full recovery between every hard effort in training.
FIXFull recovery trains peak power, not repeatability. To train repeated efforts you need deliberately incomplete recovery — start the next rep before you feel fully ready, because that's the race.
MISTAKEOnly ever training steady FTP intervals and wondering why surges drop you.
FIXSteady threshold work builds your sustainable ceiling but not your ability to repeatedly exceed it. Add clustered repeats and over-unders in the weeks before a race block.
MISTAKEBurning matches fighting through the bunch between surges.
FIXIf you spend the lulls riding in the wind, the reserve never recharges. Learn to recover in the draft — positioning is what makes the next surge possible.

FAQ

FREQUENTLY ASKED QUESTIONS

What's the difference between repeated-effort training and intervals?

All repeated efforts are intervals, but the defining feature here is the incomplete recovery between hard efforts. Standard VO2max or threshold intervals use generous rest to keep each rep high quality. Repeated-effort training deliberately shortens the recovery so you practise going hard while still fatigued from the last effort.

How long does it take to improve repeatability?

Repeated-effort adaptations come relatively fast — most riders notice a clear difference in how many surges they can answer within 4–6 weeks of twice-weekly sessions. The tactical skill of recovering in the bunch develops alongside the physiology.

Why does recovering in the draft matter for repeated efforts?

The reserve you spend on each surge only refills when you drop below threshold. Sitting in the draft lets you recover at a much lower power than the riders around you, so you arrive at the next surge with more in the tank. It's a tactical multiplier on your physical repeatability.

How much recovery should I take between repeated efforts?

Deliberately less than full. For 40-second efforts, 20 seconds between reps within a set forces incomplete recovery; longer recoveries (3–5 minutes) between sets let you maintain quality across the whole session. The short within-set recovery is the training stimulus.

Does repeated-effort training help road racing as well as crits?

Yes. Road races are decided by repeated accelerations — climbs, attacks, surges to close gaps. The ability to answer a third or fourth effort is exactly what keeps you in the selection. The demand is most concentrated in crits but present in almost every mass-start race.

Can older cyclists train repeated efforts effectively?

Yes, though recovery between sessions takes longer with age. Masters riders often do well with one clustered-repeat session and one over-under session per week, with a full easy day either side. The repeatability gains are real — the schedule just needs more spacing.

RELATED EPISODES

HEAR THE CONVERSATIONS

Criterium Secrets: Get Ahead of 99% of Your Competition | Cory Williams

Why Your CTL Is Wrong | Roadman Cycling Podcast

Cory Williams on Sprint Power & Cycling Training | Roadman