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BASE PHASE · 16 WEEKS OUT

FRED WHITTON CHALLENGE — 16 WEEKS OUT

Aerobic foundation. High volume, low intensity. Don't skip this. Built around the 180km / 3,950m profile of the Fred Whitton in United Kingdom.

180 km·3,950 m climbing·8-12 hours·May

THE FOCUS RIGHT NOW

BUILD THE ENGINE.

Sixteen weeks out, your job is volume. Forget intervals. Forget Strava. Build the aerobic engine that every later phase sits on top of. 80% of your time should be in Zone 2 — conversational pace, nose-breathing territory. If your base phase feels easy, you're doing it right.

THIS WEEK'S ANCHOR SESSION

THE LONG Z2 RIDE

One 3-4 hour steady Zone 2 ride per week. Flat to rolling route. Cadence 85-95rpm. Heart rate below first ventilatory threshold the whole way. This is where your mitochondrial density grows.

THE WEEK

A TYPICAL WEEK, 16 WEEKS OUT

Monday

REST OR 45MIN Z1

Recovery day — coffee spin only if you want to.

Tuesday

90MIN Z2 ENDURANCE

Steady, controlled, aerobic.

Wednesday

1H STRENGTH + 30MIN EASY SPIN

Squats, deadlifts, core. Builds what the bike can't.

Thursday

90MIN Z2 WITH 3X5MIN TEMPO

Intro to structured effort — don't race it.

Friday

REST

Genuine rest. The adaptations happen now.

Saturday

3-4H LONG Z2 RIDE

Anchor session. Fueled from minute 30.

Sunday

90MIN GROUP RIDE OR SOLO Z2

Social pace. No heroes allowed.

DON'T DO THIS

The #1 base-phase mistake: riding too hard on easy days. If you arrive at Saturday already tired, you'll never build the aerobic depth you need. Discipline the volume, discipline the intensity.

EVENT INTEL

WHAT THE FRED WHITTON ACTUALLY DEMANDS

Fred Whitton Challenge is the UK's hardest sportive — 180km through the Lake District with 3,950m of climbing including Hardknott Pass (33% max gradient). A pure climbing test. Finishers consider it a career highlight.

KEY CHARACTERISTICS

  • ✓Hardknott Pass — 33% max gradient, cobbled in places
  • ✓Four 10%+ climbs stacked on top of each other
  • ✓Weather can put visibility at 50m on the summits
  • ✓Cut-off times at checkpoints tight for slower riders
  • ✓Field size smaller than Wicklow or Ride London — less pack riding

COMMON MISTAKES

  • ✕Riding a 50/34 + 11-28 and discovering 33% gradient mid-effort
  • ✕Saving yourself for Hardknott and bonking before it
  • ✕Pushing the descent after the Struggle when the legs are done

PACING

Fred Whitton is about finishing. Heart rate management on the first three climbs is everything. Target Z3 ceiling on Kirkstone, Honister, and Newlands. Save Zone 4 for Wrynose and Hardknott. The last 30km are a drift — pace for survival.

FUELLING

10-12 hours needs 80-100g carbs/hour sustained — that's the difference-maker. Food at every feed zone, don't skip 'because you feel OK'. Electrolytes matter more than calories in the last 60km.

KIT

34x34 minimum gearing. Some riders use a 1x setup. Walking shoes are not weakness — plenty of people walk Hardknott. Long-finger gloves for descents.

WANT THIS BUILT AROUND YOUR FTP?

COACHED FOR YOUR EVENT.

Not Done Yet is the coached five-pillar system built around your actual event date. Personalised TrainingPeaks plan, weekly calls, expert masterclasses. 7-day free trial.

Apply for Not Done YetHow Coaching Works

$195/month · 7-day free trial · Cancel anytime

FAQ

COMMON QUESTIONS AT 16 WEEKS OUT

Is 16 weeks enough to train for the Fred Whitton Challenge?+

Yes, 16 weeks is a strong window. That's enough time for a full base phase, build, peak, and taper — the classical periodisation structure. 3,950m of climbing over 180km is built with sustained Z2 volume (base) + threshold work (build) in that order.

What's the hardest part of the Fred Whitton Challenge?+

Hardknott Pass — 33% max gradient, cobbled in places. riding a 50/34 + 11-28 and discovering 33% gradient mid-effort — so pacing discipline is the single biggest lever most amateurs miss. Fred Whitton is about finishing.

How many hours a week should I train at 16 weeks out from the Fred Whitton Challenge?+

Aim for 8-12 hours/week if you're targeting a strong finish. The long weekend ride is the anchor (3-4 hours at late base intensities) plus 3-4 structured weekday sessions. Volume matters more than intensity at this phase.

Do I need a coach to train for the Fred Whitton Challenge?+

You don't need a coach to finish. You do need structure. If you're new to sportives, have a target finish time, have a plateau you can't break, or have a history of peaking wrong, a coached plan pays for itself. Inside Not Done Yet the plan is built backwards from your event date — base, build, peak, taper timed to the week the Fred Whitton Challenge runs. 7-day free trial, $195/mo.

What gearing should I run for the Fred Whitton Challenge?+

34x34 minimum gearing. Some riders use a 1x setup. Walking shoes are not weakness — plenty of people walk Hardknott. Long-finger gloves for descents.

OTHER PHASES FOR THE FRED WHITTON

Later phase → 12 weeks out

LATE BASE

Read the full Fred Whittonguide →