5K races near Berkhamsted

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 London Epping Forest Ultra and EcoTrail 25 is a trail running event held in Epping Forest, bordering London. The EcoTrail 25 covers 25 kilometers, positioning it between a road half marathon and a full ultra marathon. It is a distance requiring pacing strategy, distinct from a full-day mountain race. Available results suggest a morning start, with runner times logged by chip rather than gun. The course specifics are limited, but the name and distance indicate a 25,000-meter trail race connected to the broader London Epping Forest Ultra series. The results show 206 finishers for the EcoTrail 25. One participant finished 80th in 2:28:39, averaging 5:56 per kilometer. Splits were recorded at the halfway point and the finish, allowing for analysis of performance during the latter half of the race.

The Chase The Moon Battersea 5K & 10K is an evening race in London’s Battersea Park, with 5K and 10K options starting at 7:00pm. Both races use a completely flat park course, suitable for runners aiming for a personal best or those seeking a simple after-work run. The route begins and ends at the Parks Bandstand, near the SW11 4NJ start postcode. It circles the park, avoiding a complex point-to-point course. This loop format simplifies navigation for participants and offers spectators multiple opportunities to view runners.

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.

Scare Bear Run is an annual spooky-themed run held at Herrington Country Park in Houghton-le-Spring, near Penshaw and New Herrington. It is designed as an inclusive event for all abilities, welcoming both walkers and runners. The theme draws on 1980s Care Bears nostalgia, reimagining the concept into a cute yet slightly menacing finisher medal. Members receive a reduced entry price of £17, assured entry, and a mini-me medal pin at each event they participate in.

The Regent's Park 5k & 10k is a flat October race held in Regent's Park, a Royal Park in North-West London. Both races begin in the morning, designed for everyday runners seeking a chip-timed result within central London. The flat course offers a good opportunity for a personal best, and the park setting provides a more tranquil atmosphere than a road race amidst heavy traffic. The route winds through Regent's Park, which also houses ZSL London Zoo. Runners might get close enough to see animals during the race. Each kilometre is marked, and marshals direct participants along the course and to the finish. Finishers are awarded a themed medal, complimentary race photos, chip-timed results, and post-race treats, with food and drink available at the event village. A Regent's Park event T-shirt can also be purchased.

We Will Remember Poppy Run is a midweek running event built around remembrance, with entrants marking the sacrifice of people who died in conflicts around the world. It is set up as a low-cost event rather than a high-pressure race, with multiple distances implied by the entry options and a lowest-price tier reserved for members. The event welcomes runners of all abilities, and walkers can join too, so it suits people chasing a personal goal, adding another finish to their tally, or simply wanting a purposeful midweek outing. Each participant receives a Poppy medal, and £5 from every entry fee goes to charity.

The Lancaster Bomber Run is a Phoenix Running timed event on the River Thames, held on the Friday of a Remembrance-themed weekend. Participants select their own distance, from 5K or 10K up through half marathon, marathon, and ultra, by completing the desired number of laps. Each lap covers 5.3 km, or 3.28 miles, on an out-and-back course along the Thames. Completing a single lap qualifies a runner as a finisher. The event acknowledges the bravery of Lancaster bomber crews. The weekend also features the annual Lest We Forget run and the Remembrance Day Run, allowing participants to combine multiple events and medals, including a substantial 1 kg anniversary medal at the Remembrance Day event.