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TRAIN FOR THE COURSE

Great South Run training guide

The Great South Run is a 10-mile road race through Portsmouth and Southsea, passing the Historic Dockyard and finishing along the seafront. Prepare for a flat, fast course, practise strong 10-mile effort and expect coastal wind in the closing miles.

Kris running at the London Marathon in front of Buckingham Palace
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Kris at the London Marathon. Photo: Sportograf.

Nick Hancock running across a bridge at Newport Marathon
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Nick Hancock at Newport Marathon. Photo supplied by Maximum Mileage.

Runner in Maximum Mileage kit on a chalk trail during South Downs Way 100
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The South Downs Way south east of Chanctonbury Ring by Tim Heaton / Geograph via Wikimedia Commons · CC BY-SA 2.0. Wikimedia 1280px thumbnail; cropped to fit the displayed frame. Image derivative remains CC BY-SA 2.0.

South Downs Way 100. Photo supplied by Maximum Mileage.

Portsmouth and Southsea, England, UK

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01 / KNOW THE ROUTE

What the course asks of you

Take in the harbour and the Dockyard

The organiser’s route guide takes runners past the Spinnaker Tower and Portsmouth Harbour and through the Historic Dockyard and HM Naval Base in the early miles. This section is busy and full of landmarks. Enjoy it, but keep your effort controlled and save energy for later.

Work through the residential miles

Next come around four miles of loops and longer stretches through residential, built-up areas, with crowds and supporter signs along the way. The organiser mentions Victoria Park at about mile 3 and the D-Day Memorial at about 6.5 miles. Use landmarks like these to check your effort.

Hold form on the seafront

After passing Canoe Lake and the 8-mile marker, the route joins East Esplanade. The final straight runs beside the beach to the finish on Clarence Esplanade, near Southsea Castle. The organiser warns that coastal running is often windier than running inland. Prepare to hold your posture and effort if there is a headwind in the last two miles.

02 / BUILD THE BLOCK

How to prepare

Build for 10 miles, not 10K

Ten miles is long enough that endurance matters. Build a weekly easy long run that grows beyond race distance. That way the full 10 miles feels comfortable before you start racing it.

Practise sustained effort

Add steady or tempo blocks at a little slower than your 10K effort. Gradually extend the time spent at that effort through the block. Interval sessions can come later, once the steady work is in place.

Train in the wind

The organiser suggests training in a range of weather. On a breezy day, run part of a steady session into the wind and focus on relaxed shoulders and a steady effort rather than a fixed pace.

Keep the running and strength work in one place. Explore MaxMile for your Great South Run preparation, or compare the levels of personal coaching.

03 / PUT IT INTO PRACTICE

Pace the race you have trained for

Start in your allocated wave. The organiser says you can move to a slower wave but not a faster one. Use the Dockyard miles to settle in, then run a steady, even effort through the residential loops.

Aim to reach the seafront at about mile 8 with energy to spare. If there is a headwind, let your pace drop a little, stay tall and keep your effort steady. If the wind is behind you, you can push harder through the last mile.

04 / MAKE ROOM FOR TRAINING

When should your block start?

The 2027 race is on Sunday 17 October. A 10-week block would begin around Sunday 8 August 2027, or a 12-week block around Sunday 25 July for runners who want more time. Use the early weeks to extend your long run, then add more sustained race-effort work from September.

Through the spring and early summer, keep a regular easy routine and include some faster strides or short hills. If you are also running an early-autumn half marathon, plan a few easier days after it before the final Great South Run sessions.

05 / SORT THE PRACTICAL BITS

Kit and race-weekend planning

Your race number, with its built-in timing chip, should arrive about four weeks before the race. Late and overseas entrants collect theirs from the information point. Fill in the baggage label on your number before you leave home. Bag drop is on baggage buses in a marquee on Castle Field.

The seafront can be cold and windy in October. Wear a throwaway layer to the start and pack warm clothes in your bag for afterwards. Participants must be aged 16 or over on race day.

YOUR TRAINING, YOUR SUPPORT

How would you like to prepare?

Work with a human coach or use MaxMile for app-led training. Choose the support that fits how you like to run.

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BEFORE YOU START

Your questions, answered

How long is the Great South Run?

The Great South Run is 10 miles long and runs through Portsmouth and Southsea.

Is the Great South Run flat?

The organiser describes it as a fairly flat, fast course. The main challenge is often wind along the seafront.

Where does the Great South Run start and finish?

The race starts at the north end of Avenue De Caen. It finishes on Clarence Esplanade, near Castle Field and Southsea Castle.

Can I change my start wave?

You can move to a slower wave, but the organiser says you cannot move to a faster one.

Sources and checks

Fact-checked 20 October 2026

Event facts checked on 2 November 2026: Great South Run runner information; organiser route guide; organiser route page.

The route description comes from the organiser’s route guide and may change for 2027. Use the official Event Guide, published about a month before the race, for wave times and assembly areas. This guide does not give an elevation profile or drinks station locations.

This is an independent Maximum Mileage training guide, not an organiser publication or an official event partnership. Use the organiser’s final instructions for race-day arrangements and adapt training to your current running.

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