Why the Half Marathon Is the Perfect Step Up

Thirteen point one miles — 21.1 kilometres — sits in a lovely sweet spot. It is long enough to feel like a proper adventure, but short enough that you can prepare for it on three or four runs a week without rearranging your entire life. For most runners in the Highlands, it is the natural next step after a few 10Ks, and it is far more forgiving than a full marathon in terms of recovery, time and risk of injury.

Here in the north we also have an advantage. Our everyday routes are hilly, our weather is honest, and our trails are rarely flat and never boring. If you have been plodding around Inverness, Aviemore, Fort William or anywhere in between, you have already been doing the kind of strength work that a half marathon rewards.

Build Your Base Before You Chasing Speed

Give yourself twelve to sixteen weeks. If you can currently run 5K comfortably three times a week, you have enough of a base to start. The golden rule is gradual progression: never add more than about 10 per cent to your weekly distance, and cut back every fourth week to let the body absorb the work.

A workable week might look like this:

• Monday — rest, or a gentle walk
• Tuesday — easy run, 5–8 km, conversational pace
• Wednesday — rest or cross-training (cycling, swimming, a hill walk)
• Thursday — hills or a steady tempo effort, 40–50 minutes
• Saturday — long run, building slowly
• Sunday — short, very easy recovery jog or a full rest day

Your long run is the cornerstone. Start at around 8 km and add 1–2 km each week until you reach 18–19 km about three weeks before race day. You never need to run the full 21.1 km in training. If you can cover 18 km comfortably, adrenaline and fresh legs will carry you the rest of the way.

Train on the Trails You Will Race On

Road runners often neglect terrain, then suffer on race day. If your half marathon is on forest track, estate road or coastal path, get some of your long runs onto similar ground. The Great Glen Way, the Speyside Way and the many waymarked forest trails around Glen Affric and Rothiemurchus are ideal — firm underfoot, gently undulating, and easy to bail out of if the weather turns.

For runners based in town, the riverside paths at Inverness and the canal towpath near Fort William give you flat, measurable miles for tempo sessions. Mix the two: use flat routes when you want to practise pace, and trails when you want to build resilience. Hill reps on a short, steep local climb once a fortnight will do more for your half marathon than any track session.

Practise Your Fuelling Before Race Day

Nothing new on race day — that is the whole principle. Your long runs are rehearsals, so use them to test breakfast, drinks and any gels or chews you plan to carry.

• Breakfast — try your race-day meal two to three hours before a long run: porridge, toast with jam, a banana.
• During the run — aim for roughly 30–60g of carbohydrate per hour on runs over 90 minutes. Start early rather than waiting until you feel empty.
• Drink — sip little and often. On cooler Highland days it is easy to under-drink because you do not feel thirsty.
• Practise the awkward bits — opening a gel with cold hands, carrying a bottle, wearing a pack or belt.

Write down what worked. A simple note in your phone after each long run will save you a lot of guesswork later.

The Final Two Weeks: Taper and Rest

This is where many first-timers go wrong. They panic, worry they have not done enough, and cram in extra miles. Resist it. Fitness is built over months; the last fortnight is for arriving fresh.

Three weeks out, complete your longest run. Two weeks out, drop your weekly mileage by around 20–30 per cent and shorten the long run to about 12–14 km. In the final week, cut volume by 40–50 per cent, keep one short session with a few brisk bursts to stay sharp, and otherwise take it easy.

Rest is training. Sleep is where adaptation happens, so protect it — aim for an extra half hour a night during the taper. Eat normally, keep hydrated, and trust the work you have already banked. If your legs feel heavy and restless, that is normal and it will lift.

Race Day in the Highlands

Check the forecast and pack for one season worse than you expect. A light waterproof, a buff, and gloves for a chilly start are rarely wasted, and a dry bag for the finish is a small kindness to yourself. Start slower than feels natural, especially on any early climb, then let the pace come to you in the second half.

Finally, remember why you are doing this. Whether you are chasing a time or simply aiming to finish with a smile, you will be running through some of the finest scenery in Britain alongside people who have quietly encouraged you through every long Saturday. Enjoy it — and be sure to cheer on the runners behind you at the finish line.