Next race
Sunday, 11 April 2027
9:00 am start
Distance
42.195 km / 26.2 mi
Urban road
Elevation
Rolling · 150 m gain
150 m climbing
Race profile
The Southampton Marathon draws approximately 1,350 finishers each April on an urban road in Southampton, United Kingdom. The event combines big-city logistics with a smaller-field atmosphere than London's spring marathon scene. The route passes the old walls area, parks, and port-city roads connected to the south coast waterfront. Rolling terrain with moderate climbs shapes the middle miles.
Southampton Marathon is a certified 42.195 km (26.2 mile) marathon — the standard World Athletics marathon distance.
Approximately 1,350 finishers
Course & terrain
Starts and finishes in Southampton's city center. The route passes the old walls area, parks, and port-city roads connected to the south coast waterfront. Rolling terrain with moderate climbs. Rolling terrain with moderate climbs shapes the middle miles.
The Southampton Marathon course is rolling over 42.195 km (26.2 miles). Runners cover 150 metres of climbing and 140 metres of descent, with a net climb of 10 metres from start to finish.
Rolling · 150 m gain — approx. 19 m above sea level
↑ 150 m · ↓ 140 m · net +10 m
Registration
The Southampton Marathon uses open online registration at southamptonmarathon.co.uk with no ballot or qualifying time for the general field. Sign-up for the April race typically opens the previous year and places are allocated first-come, first-served. Charity bibs are available through partner organisations when general entry closes.
Getting there
Southampton Airport (SOU)
6 km / 4 mi
Common questions
Official resources
Last updated 11 October 2026. Edition dates and course details are reviewed regularly.
Close to this race
Other races closest to Southampton.
The New Forest Marathon draws approximately 1,200 finishers each September on a forest road in Brockenhurst, United Kingdom. Natural scenery and the presence of free-roaming animals make it distinct from urban UK marathons. The route passes heathland, forest roads, roaming ponies, and open stretches through the national park. Rolling terrain with moderate climbs shapes the middle miles.
Next race: Sunday, 5 September 2027
The Abingdon Marathon is a traditional multi-lap race in Oxfordshire, drawing about 1,000 finishers each October on a flat, fast course at the Abingdon Airfield. The four-lap format on closed airfield roads is popular with UK runners chasing personal bests. October cool English weather and the simple, traffic-free course make it one of Britain's fastest autumn marathons.
Next race: Sunday, 18 April 2027
The Brighton Marathon is one of the UK's largest spring marathons, with more than 11,000 finishers running from Preston Park to a finish at Hove Lawns on Kingsway. The course passes the Royal Pavilion, Brighton Marina, and a mid-course out-and-back on Madeira Drive before the final miles through Hove to the seafront. April race-day atmosphere in Brighton — with crowds on the seafront — makes it a favourite UK destination marathon.
Next race: Sunday, 11 April 2027
The TCS London Marathon is one of the world's most popular races, famous for its incredible charity fundraising and electric atmosphere. The fast course passes Tower Bridge, the Cutty Sark, Canary Wharf, and finishes on The Mall in front of Buckingham Palace. With gentle undulations and around 127 metres of total climbing, it consistently produces fast times — including Sabastian Sawe's 1:59:30 men's world record and Tigst Assefa's 2:15:41 women's-only world record, both set at the 2026 race.
Next race: Saturday, 24 April 2027
The Milton Keynes Marathon draws about 4,000 finishers each May through Britain's planned new-town city of redways and roundabouts. The course follows the linear park system, passes the Xscape dome, and uses the wide boulevards and traffic-free redways that define Milton Keynes. May spring weather and a flat, fast course make it popular with runners chasing personal bests in the Home Counties.
Next race: Sunday, 2 May 2027
The Newport Marathon Festival draws approximately 1,999 finishers each April on an urban road in Newport, United Kingdom. It is widely regarded as one of the fastest full marathons in Wales. The route passes the River Usk, city bridges, and wide roads used for one of Wales's faster marathon layouts. Gentle undulations are the only breaks on an otherwise flat profile.
Next race: Sunday, 18 April 2027
Planning guides
Practical guides to help you plan, train for, and run this race.
What flat, rolling, and hilly really mean — and how to read elevation gain, net change, and altitude on a marathon course.
How temperature, humidity, wind, and rain affect marathon performance — and how to use typical race-day weather when choosing a start line.
Match a race to your goals — personal bests, sightseeing, atmosphere, or a major milestone — using course data and realistic expectations.
