Hertfordshire
Half marathons in Hertfordshire
There are 9 half marathons in Hertfordshire on the Verus calendar, running across 5 months of the year. The next is Welwyn Half Marathon on 4 October 2026. Every entry below links to the organiser's own site, and the fuller guides are researched by hand against it — dates, entry costs, start times and course detail.
- Races listed
- 9
- Still upcoming
- 9
- Flattest course
- Hertfordshire Half Marathon
Half Marathons in Hertfordshire, in context
Verus covers 9 half marathons in Hertfordshire, out of 30 races there — roughly 30% of what is on here.
The dates are spread across 4 months of the year, which gives real choice about when to peak rather than forcing a single date.
Of those that publish an elevation figure, the flattest is Hertfordshire Half Marathon at 302ft of climb and the hilliest Watford Half Marathon at 751ft — the same distance, but not the same afternoon.
Every one of them, in date order
Welwyn Half Marathon
Welwyn Garden City, Hertfordshire, UK
ATW Welwyn Half Marathon
Welwyn Garden City, Hertfordshire, UK
Stevenage Half Marathon
Stevenage, Hertfordshire, UK
Hertfordshire Half Marathon
Knebworth, Hertfordshire, UK
Watford Half Marathon
Watford, Hertfordshire, UK
ATW Watford Half Marathon
Watford, Hertfordshire, UK
Berkhamsted Half Marathon
Berkhamsted, Hertfordshire, UK
St Albans Half Marathon
St Albans, Hertfordshire, UK
ATW St Albans Half Marathon
St Albans, Hertfordshire, UK
Dates and entry at a glance
| Race | Date | Location | Entry |
|---|---|---|---|
| Welwyn Half Marathon | 4 Oct 2026 | Welwyn Garden City, Hertfordshire, UK | Entry is direct via Active Training World — no ballot |
| ATW Welwyn Half Marathon | 4 Oct 2026 | Welwyn Garden City, Hertfordshire, UK | Entry direct through Active Training World — check the official site for current pricing |
| Stevenage Half Marathon | 18 Oct 2026 | Stevenage, Hertfordshire, UK | Entry is first come, first served via RaceResult — no ballot |
| Hertfordshire Half Marathon | 1 Nov 2026 | Knebworth, Hertfordshire, UK | Entry is direct via RunThrough Events — no qualifying time or ballot |
| Watford Half Marathon | 7 Feb 2027 | Watford, Hertfordshire, UK | Entry is direct via Active Training World — no ballot |
| ATW Watford Half Marathon | 7 Feb 2027 | Watford, Hertfordshire, UK | Entry direct through Active Training World — check the official site for current pricing |
| Berkhamsted Half Marathon | 7 Mar 2027 | Berkhamsted, Hertfordshire, UK | Entry is first come, first served — no ballot |
| St Albans Half Marathon | 13 Jun 2027 | St Albans, Hertfordshire, UK | 2026-season pricing was tiered £34-£47 (UKA-affiliated) or £36-£49 (unaffiliated) — check the official site for current tiers |
| ATW St Albans Half Marathon | 13 Jun 2027 | St Albans, Hertfordshire, UK | Entry direct through Active Training World — check the official site for current pricing |
Other distances in Hertfordshire
Also racing in Hertfordshire
Smaller local races we've indexed but not written a full guide for. We link straight to the organiser rather than keeping you here — there's nothing we could tell you about these that they don't tell you better.
Athletes from Hertfordshire on Verus
Everyone here has set out what they're training for, in public. Find someone from your own town chasing the same start line.