Hertfordshire Half Marathon
Sunday, 19 November 2017· 09:30· Knebworth, Hertfordshire
Half Marathon Road Undulating ≈4,500 runners
The course
No route data available for this race yet. Sign in to upload a GPX route file.
Weather on the day
Sun, 19 Nov 2017Rain, Partially cloudy
4.4°C
High / low 7.4° / 1.1°
Humidity 82%
Rain chance 100% · 0.0mm
Wind 12 km/h, gusts 26
UV index 3
Light 07:27 – 16:04
Weather data by VisualCrossing
Other half marathon races
Upcoming races at this distance
Sept 2026 Sun 20 Keswick Half Marathon Keswick, Cumbria, UK Half Marathon UndulatingSept 2026 Sun 20 ABP Humber Coastal 10k/half/fun run Cleethorpes, Lincolnshire, UK Half Marathon UndulatingSept 2026 Sun 13 Chippenham Half Marathon Chippenham, Wiltshire, UK Half Marathon UndulatingSept 2026 Sun 13 RunThrough Basildon Half Marathon BASILDON, Essex, UK Half Marathon Undulating
Spotted something wrong?
Race details here come from organisers, public sources and other runners, and they change. We review contributions before they go live, but we can't guarantee that everything on this page is accurate or current — check the official race site before you enter, travel or pay for anything. We accept no liability for errors or omissions; see our terms.