Welwyn Half Marathon Fast Course Chip Timed Custom Medal Enter Now Welwyn Half Marathon Sunday Date TBC 2023 9:00am start Welwyn Half Marathon Venue: Gosling Sports Park, Stanborough Road, Welwyn Garden City, Hertfordshire, AL8 6XE Organiser: ActiveTrainingWorld Links to other ATW Events Running Events: Love Welwyn Garden City 10K Hillingdon Half & 10K Welwyn Half Marathon Run Fest at Lee Valley Ten Fest at Lee Valley St Albans 10K Hatfield 5 Multi Sport Events: Ashridge Duathlon Hertfordshire Triathlon Stewartby Lake Triathlon Box End Triathlon Centurion Triathlon