Image: Great Eastern Run

There’s no shortage of fantastic autumn half marathons taking place throughout September, October and November. If you’ve been running consistently this year, there’s still plenty of time to train for one.

With the longer summer days and lighter evenings, it’s much easier to fit in those extra midweek miles, whether you prefer running before work or after dinner. So why not make the most of the warmer weather? Pick a race, get it in the diary and start your half marathon training now.

If you haven’t already got one, we’ve plenty of half marathon training plans for you to choose from. Whether your goal is to run a half marathon PB or just get round and enjoy the event.

The best autumn half marathons for 2026 with no ballot

Abersoch Half Marathon

Where? Abersoch, Pwllheli, Wales
When? 19 September 2026
Why? Beautiful coastal trail course with stunning sea views. And a rare Saturday race!
Race website

Worcester City Run Half Marathon

Where? Worcester
When? 13 September
Why? A two-day celebration of running including the half, a 10k and junior race.
Race website

AJ Bell Great Scottish Run

Where? Glasgow
When? 4 October
Why? Take in Glasgow’s famous architecture, green spaces, history, music. There’s also a 10k option.
Race website

2026 Weston Super Half

Where? Weston-super-Mare
When? 4 October
Why? Spectacular sea views as you run along the Weston coastline. This year also includes a 10k option.

Race website

Credit: Great Eastern Run

Great Eastern Run

Where? Peterborough, Cambs
When? 11 October
Why? A flat, fast course, closed roads and great support make this a PB hunter’s paradise.
Race website

Run Leicester Half Marathon

Where? Leicester
When? 11 October
Why? Great support and a vibrant city route. There’s a 10k option too.
Race website

Credit: Weston Super Half

The best autumn half marathons to bookmark for 2027

The autumn half marathons below are so popular with runners that they either hold a ballot for places or sell out quickly. Mark them in your diary for next year!

Cardiff Half Marathon

Where? Cardiff
Why? A flat, fast route around the Welsh capital.
Entry: No ballot but it’s sold out for 2026.
Race website

Great North Run

Where? Newcastle to South Shields
Why? Iconic race enjoyed by 60,000 runners each year.
Entry: Via the ballot or run for charity.
Race website

Royal Parks Half Marathon

Where? London
Why? 13.1 miles looping through some of London’s best parks.
Entry: Via the ballot or run for charity.
Race website

Manchester Half Marathon

Where? Manchester
Why? Fantastic support for the 30,000 runners on a music-lined route.
Entry: No ballot but it’s sold out for 2026 (charity places available)
Race website

Thinking further ahead? How about a spring marathon for next year?