Half Marathon races near Hatfield

A midweek run to chase personal bests. The course follows the River Thames. Runners can complete it multiple times within the 7-hour limit.

Run at Dorney Lake. The flat course circles the lake, where GB's Olympic rowers train. It's a great run for all levels, whether you're aiming for a PB or just want a finisher's medal.

The Thames Meander - Autumn is a flat riverside race series in Richmond, commencing and concluding at the Petersham & Ham Sea Scouts HQ on Petersham Road. Participants can select from 10km, half marathon, or marathon distances, with all three utilizing the Thames Path towpath for out-and-back courses. The format is straightforward: run alongside the river, turn at the designated checkpoint for your chosen distance, and return to the original finish area. The 10km turnaround point is at Kew Gardens Car Park on Ferry Lane. The half marathon extends to the Thames Path opposite Barnes Sports Club. The marathon follows the same 13.1-mile out-and-back course as the half marathon, run twice. The path is suited for consistent running, not technical trail running, and as a public thoroughfare, runners will encounter walkers and cyclists. Marshals are stationed along the course and at turnaround points. Checkpoints provide gels, drinks, electrolyte powders, and high-energy food. KLP Medics are present at the start/finish and Kew Gardens Car Park.

The Wild Half Marathon - Autumn Edition begins in Tring and covers approximately 13 miles (21.1 km) through the Chiltern Hills during the fall season. This is a guided trail half marathon, not a road race, with English Athletics-qualified run leaders accompanying the group on the course. The route features about 300 metres of elevation gain, offering a genuine off-road half marathon experience that is accessible to non-specialists. The event is designed for a relaxed, inclusive atmosphere, including trail technique guidance, checkpoint refreshments, a bag drop service, on-site parking, restroom facilities, and a finisher's medal.

The Royal Parks Foundation Half Marathon is a central London half marathon run in October on closed roads. Its appeal is a traffic-free route past famous London landmarks and through four of the city’s eight Royal Parks, all within the 13.1-mile distance. Runners can participate for charity, so the field includes runners other than club athletes chasing times. The event has reached at least its 18th edition, giving it a longer track record than many newer city half marathons.

The Chelmsford Marathon & Half Marathon begins at 9:00 am in Chelmsford, Essex. Both distances follow accurately measured, undulating road courses. This autumn race offers a marathon or half marathon option and attracts over 1,500 participants, establishing it as a significant event on the Essex race calendar. A six-hour cut-off defines the marathon structure, and pacers are typically available for both distances if sufficient numbers are confirmed. The route departs Central Park via tree-lined avenues, then proceeds onto rural country lanes. This provides participants with a blend of town running and Essex countryside, distinct from a city-centre circuit. The courses are frequently chosen for good-for-age qualifying attempts, though their undulations prevent them from being a flat time-trial course. A substantial aspect of the race involves fundraising for Little Havens Children's Hospice and Havens Hospices, organizations supporting individuals with complex or incurable conditions. Runner contributions generated over £53,000 in a recent running. Participants can select a HAVENS HEROES ticket, which incorporates a donation, and the race also relies on hospice supporters and marshals within the event village.

The Hampton Court Palace 10K begins within the palace gates and concludes in the gardens, integrating the venue from start to finish. This October 10K, located in East Molesey, Surrey, features a flat, multi-terrain course. A half marathon is also available as part of the same running festival. The event is presented by Voltarol and benefits a multiple sclerosis charity dedicated to helping individuals affected by MS lead healthier, happier lives. From the palace, the route follows Barge Walk, crosses Kingston Bridge, and then utilizes footpaths around Thames Ditton. Participants have described the course as varied, well-organized, and offering strong views, with the palace grounds and riverside paths contributing significantly. The minimum age for participation is 15. Reviews note a lively atmosphere, helpful volunteers, and a historical figure, identified as Henry VIII, appearing for photos.

Lee Valley VeloPark October is a multi-distance road running event held at Lee Valley VeloPark in east London. It uses the floodlit one-mile circuit constructed around the London 2012 Olympic venue. Participants can select a half marathon, 10 miles, 10k, 5k, or a 1-mile and junior race. All races are on tarmac, featuring a gentle rise and fall instead of a flat park path. The event is lap-based: the half marathon covers 13 laps, the 10-mile race uses 10 laps, the 10k is 6 laps, the 5k is 3 laps, and the mile race completes one full lap. Each mile split is chip timed, allowing runners to monitor their pace, though no pacers are provided. RunThrough supplies marshals, chip-timed results, free race photos, a themed medal, post-race treats, and an event village with food and drink near the finish.

The Top Gun 40th Anniversary Marathons & Half Marathons is a running event in Milton Keynes MK7, United Kingdom, offering marathon and half marathon distances. The main race weekend takes place in October, with both the 42.2 km marathon and 21.1 km half marathon listed as sold out. The series also features a 5 km race, scheduled for a Sunday start at 11:00. This shorter race is also sold out, indicating sufficient local interest to fill all available distances.

The Richmond Park Half Marathon takes place on a Sunday morning in Richmond Park, starting at 9:30am near SW14 8BJ. The setting is the main feature: runners are within one of London’s great park spaces, managed as a royal deer park since the seventeenth century. The course remains entirely within Richmond Park, so seeing deer near the route is a genuine possibility. Entry includes chip timing, free official race photos, and a themed finisher medal, providing a straightforward local half marathon for runners seeking a timed autumn race without a large-city road-race atmosphere.