12e Halve van Alphen

De Halve van Alphen is a lively autumn classic taking place on Sunday, 27 September 2026, in Alphen aan den Rijn. The 21.1 km half marathon takes you past green spaces, parks and nature reserves in the Groene Hart on a course that is almost traffic-free. As well as running, you can take part in relay teams, skate, cycle, walk or even bring a leashed dog. The start and finish are at Sunset Beach Bar by the Zegerplas, where a welcoming atmosphere and an after-party await participants and spectators.

Registration is available only in person and is free, from 08:00 until 15 minutes before the start of your distance. Start times: 21 km walk at 08:30, half marathon (21.1 km) at 10:00, 10 km at 10:30 and 5 km at 11:00. Parking is limited; cycling is recommended. There are no changing facilities or showers. A supervised bag drop is available, but it is not continuously monitored. There is a water station at 13 km and water at the finish. Wear your race number on your chest at all times. An after-party with food and drinks will be held at Sunset Beach Bar. De Halve van Alphen is not a race, but a personal-record event. The route follows public roads and cycle paths, with traffic marshals on hand. Distances: 21 km, 10 km and 5 km; registration in person; limited parking, so come by bike.