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HOW DO I TRAIN FOR A SPORTIVE?

By Anthony WalshRoadman CyclingUpdated

WHO THIS IS FOR

IS THIS YOU?

The first-time sportive rider

You've signed up for a 100-mile or gran fondo-style event and want a clear training structure.

The rider who wants to perform, not just finish

You've done sportives before but want to arrive fitter and have more in reserve.

THE ROADMAN VIEW

The Roadman view

Most sportive training advice misses the point because it treats the event like a race. For the majority of serious amateur cyclists, a sportive is a long, hard endurance effort — the limiting factor isn't top-end power, it's sustained aerobic capacity and the ability to fuel and pace over 4–6 hours. That means the training has to be built on a genuinely large base, not sessions designed to raise FTP.

The single most important session in any sportive training week is the long ride. Not the interval session. Not the threshold work. The long ride — done at a genuinely sustainable pace — is where you build the endurance engine that gets you through hour four and five without falling apart. Everything else sits on top of that.

Week 5 onwards is when structured intensity earns its place. A single threshold session per week from mid-block builds the power to push through the hillier sections without blowing up. But if the aerobic base isn't there first, intervals become a ceiling rather than a booster.

EXPERT EVIDENCE

WHAT THE EXPERTS SAY

PRACTICAL APPLICATION

DO THIS WEEK

  1. Set your long-ride target: 80% of event distance

    If your sportive is 160km, your peak long ride should reach 128km. Build that over 8 weeks with a 10–15% distance increase each week, then hold it for 2 weeks before tapering. Never increase by more than 20% week-on-week.

  2. Add one threshold session from week 5

    From week 5, include one session of 2×20 minutes at 90–95% FTP. This raises the sustained power you can hold over the climbs. Keep it to one session per week — this isn't an interval block.

  3. Practice event nutrition on every long ride

    Eat on your long rides exactly as you plan to on the event: 60–80g of carbohydrate per hour from 30 minutes in. Your gut needs training as much as your legs do.

COMMON MISTAKES

WHAT CYCLISTS GET WRONG

  • MISTAKEDoing interval sessions too early and not building the long ride.

    FIXThe first 4–5 weeks should be base-building only. Let the aerobic foundation establish before adding intensity.

  • MISTAKESkipping the taper and riding hard until event week.

    FIXStart a 10-day taper regardless of how busy life is. Arriving fresh beats arriving fit.

  • MISTAKENot practising nutrition during training rides.

    FIXDebut nothing on race day. Test your gels, drink mix and food strategy on every long training ride from week 3.

FAQ

FREQUENTLY ASKED QUESTIONS

How many weeks do I need to train for a 100-mile sportive?
12 weeks is the minimum if you're already riding 4–5 hours a week. If you're starting from less, allow 16 weeks. The constraint isn't fitness — it's the long ride taking time to build safely.
How many hours a week do I need?
7–10 hours a week is enough for most 100-mile sportives. Three rides — a long one (2.5–4 hours), a medium ride (1.5–2 hours), and one structured session — covers the requirements.
Should I do intervals to prepare for a sportive?
Yes, but only from week 5 and only one session per week. The sportive is an endurance event, so threshold work helps you handle the climbs, but it should never replace the long ride.
What should the week before a sportive look like?
Short, easy rides only — 45–60 minutes — with one session of 3×8 minutes at tempo pace to stay sharp. Nothing long, nothing exhausting. Sleep and nutrition take priority.
Can I train for a sportive in 6 weeks?
If you're already reasonably fit and riding regularly, 6 weeks can prepare you to finish comfortably. You won't be able to build the long ride properly in that time, so managing pace and nutrition on the day becomes even more important.

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