Events/Kielder 101

Kielder 101

MTB

Date

Sun, 10 Oct 2027

Venue

Kielder Castle, Kielder Forest, Northumberland

Countdown

October

Distance

101km

Total climb

2,500m

101km through Britain's largest working forest, out from Kielder Castle, over the border into Scotland's Newcastleton Forest and back. Two border crossings and long stretches with no way out.

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The course

The route

101km out and back from Kielder Castle on forest fire-road, gravel doubletrack and open moorland, crossing into Newcastleton Forest in Scotland, with roughly 2,500m of climbing. A shorter 60km Border Challenge shares the same terrain.

Weather

Early-October, Kielder Castle

12°CTypical high

6°CTypical low

0°CColdest in 20 years

57%Days with rain

Highs around 12°C and lows around 6°C, but it has dropped to 0°C. Rain on 57% of days. Pack for the cold end, not the average.

NASA POWER data, 2006-2025, the week either side of race day

Training

Training for the Kielder 101

We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.

Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.

Intervals.icu

A remote fire-road grind

Typical sessions

A full day's climbing on forest fire-road and gravel, with no decisive summit to pace to, just relentless rolling drags.

Sustained fuelling from the first hour. Under-fuel the easy opening and the debt lands at 70km with forest still to ride.

Real remoteness: long exposed moorland with no bail-out, so a mechanical becomes a self-rescue.

Northern weather that can swing warm to cold, wet and windy inside a single day.

What your weeks look like

Typical sessions

Peak endurance ride: 5.5 to 6hr on rough forest terrain, fully fuelled. The single best predictor of your finish.

Long sweet-spot: 2 to 3 x 20min at 88 to 94% FTP on a climb, building fire-road climbing durability.

Back-to-back weekend: 4hr Saturday plus 2.5 to 3hr Sunday, teaching the legs to ride on cumulative fatigue.

Fuelling rehearsal: 60 to 90g carbs an hour on your exact race products until it's automatic.

Not a generic schedule

Typical sessions

Built from your current fitness and the time you actually have

Adapts every week as Beina learns how you respond

Syncs your sessions straight to Garmin and Wahoo

One clear next session, never a wall of spreadsheet

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