ATW Welwyn Half Marathon & 10k

ATW Welwyn Half Marathon & 10k is a welcoming autumn running event set at Gosling Sports Park in Welwyn Garden City. Both races start and finish with a memorable lap on the impressive 400m athletics track, creating a lively stadium atmosphere from the gun to the line. The half marathon explores the leafy outskirts of Welwyn before joining the Cole Green Way, a disused railway turned traffic-free path, while the multi-terrain 10k shares the opening kilometres before branching onto its own loop.

Runners can expect a professionally organised experience with UK Athletics licensing and chip timing by Event Chip Timing. A warm-up led by personal trainers, an energetic finish-line commentator, and food and drink from quality caterers contribute to a friendly, family-focused race village. Every finisher receives a custom-designed medal, free professional race photos, and post-race snacks and goodies, with a free 400m children’s fun run on the track taking place 15 minutes before the main start. The event operates a three-hour cut-off, after which marshals and signage are withdrawn.