18

Half marathons with PB potential in UK in Autumn

Find half marathons with pb potential in UK in Autumn - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Be part of London's most exclusive event! Run through its greenest borough, exploring the beauties and history of Richmond. Start inside the Kew Gardens with a family music festival to finish!
  • Sun 13 Sep 2026
  • £43-£50
  • 5 charities
Richmond, UK

Richmond Half Marathon

Be part of London's most exclusive event! Run through its greenest borough, exploring the beauties and history of Richmond. Start inside the Kew Gardens with a family music festival to finish!

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running
Get your Oompah vibe on and enjoy a trip up the Leeds and Liverpool Canal. A half marathon to warm the depths of your heart along the flat, even towpath - this event is perfect for all abilities.
  • Sat 19 Sep 2026
  • £30-£32
Leeds, West Yorkshire, UK

Oktoberfest | Half Marathon

Get your Oompah vibe on and enjoy a trip up the Leeds and Liverpool Canal. A half marathon to warm the depths of your heart along the flat, even towpath - this event is perfect for all abilities.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 13.1 miles trail running
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
  • Sun 27 Sep 2026
  • £25-£27
Folkestone, Kent, UK

Folkestone Rotary Half Marathon

This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 13.1 miles road running
Round off your season with a flat, fast half on closed roads, roaring crowd support, and a well-earned chunky medal near Old Trafford.
  • Sun 4 Oct 2026
  • £10-£98
  • 3 charities
Manchester, Greater Manchester, UK

Manchester Half Marathon

Round off your season with a flat, fast half on closed roads, roaring crowd support, and a well-earned chunky medal near Old Trafford.

  • Trees not tees
  • Venue accessible
  • Recycling
  • Entertainment
  • Chip timing
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Sustainability policy
  • Public transport links
  • Age 17 & over
  • 13.1 miles road running
An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage!
  • Sun 4 Oct 2026
  • £5-£60
  • 15 charities
Cardiff, South Glamorgan, UK

Oysho Cardiff Half

An iconic road race around Wales' capital offering a flat course from the castle to the marina and over the Cardiff Bay barrage!

  • Families
  • Carbon offset
  • Venue accessible
  • Recycling
  • Entertainment
  • Music
  • Chip timing
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Coast
  • Sustainability policy
  • Public transport links
  • Age 17 & over
  • 13.1 miles road running
Run through four of London’s most beautiful Royal Parks, past iconic landmarks and tree-lined avenues, on a stunning autumn route that combines city energy with natural splendour.
  • Sun 11 Oct 2026
  • £25-£35
  • 10 charities
London, UK

Royal Parks Half Marathon

Run through four of London’s most beautiful Royal Parks, past iconic landmarks and tree-lined avenues, on a stunning autumn route that combines city energy with natural splendour.

  • Families
  • Trees not tees
  • Venue accessible
  • Recycling
  • Beginner-friendly
  • Plastic bottle free
  • Entertainment
  • Music
  • Chip timing
  • GPS tracking
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Park
  • Sustainability policy
  • Public transport links
  • Age 17 & over
  • 13.1 miles road running
Runners will enjoy the fast, flat and beautiful route through University Parks and the historic Oxford City Centre whilst celebrating running and movement with entertainment and cheering fans!
  • Sun 11 Oct 2026
  • £15-£117
  • 7 charities
Oxford, Oxfordshire, UK

Oxford Half Marathon

Runners will enjoy the fast, flat and beautiful route through University Parks and the historic Oxford City Centre whilst celebrating running and movement with entertainment and cheering fans!

  • Carbon neutral
  • Venue accessible
  • Recycling
  • Beginner-friendly
  • Entertainment
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Park
  • Sustainability policy
  • Public transport links
  • Age 16 & over
  • 13.1 miles road running
Race through historic streets and vibrant crowds, chasing your personal best on a fast, flat course and experience electrifying support and unforgettable moments in this celebrated running challenge.
  • Sun 11 Oct 2026
  • £38-£40
Peterborough, Cambridgeshire, UK

AEPG Great Eastern Run | Half Marathon

Race through historic streets and vibrant crowds, chasing your personal best on a fast, flat course and experience electrifying support and unforgettable moments in this celebrated running challenge.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running
Sun, sea and 13.1 miles of stunning coastline — a spectacular half marathon taking you across both Bournemouth piers, as the headline event of the Run Bournemouth running festival!
  • Sun 11 Oct 2026
  • £46.25-£51.50
  • 6 charities
Bournemouth, Dorset, UK

Bournemouth Half Marathon

Sun, sea and 13.1 miles of stunning coastline — a spectacular half marathon taking you across both Bournemouth piers, as the headline event of the Run Bournemouth running festival!

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles road running
A Halloween-themed half marathon you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.
  • Sat 31 Oct 2026
  • £30-£32
Leeds, West Yorkshire, UK

Hubble Bubble & Ghostly 1 Mile | Half Marathon

A Halloween-themed half marathon you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.

  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running
Chase your personal best on one of the UK’s flattest, fastest and most scenic courses, looping the River Ouse and Priory Park in a spectacular Bedford Half Marathon.
  • Sun 1 Nov 2026
  • £31-£33
Bedford, Bedfordshire, UK

ATW Bedford Half Marathon

Chase your personal best on one of the UK’s flattest, fastest and most scenic courses, looping the River Ouse and Priory Park in a spectacular Bedford Half Marathon.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 21.1 km road running
Discover the ultimate trail running experience at Leeds Skelton Lake Services - an unexpected haven for nature lovers and a fantastic trail half marathon.
  • Sun 15 Nov 2026
  • £30-£32
Leeds, West Yorkshire, UK

Rothwell Kebabathon | Half Marathon

Discover the ultimate trail running experience at Leeds Skelton Lake Services - an unexpected haven for nature lovers and a fantastic trail half marathon.

  • Enter online
  • PB
  • Age 17 & over
  • 13.1 miles trail running
  • Sun 13 Sep 2026
Stratford-upon-Avon, Warwickshire, UK

Stratfords Big 10K & Half Marathon | Half Marathon

  • 13.1 miles road running
  • Sun 20 Sep 2026
Knaresborough, North Yorkshire, UK

The Yorkshire Weekend Saunter Series in Knaresborough | Half Marathon

  • 13.1 miles road running
  • Sun 20 Sep 2026
Paignton, Devon, UK

Torbay Half Marathon and 10K | Half Marathon

  • 13.1 miles road running
  • Sat 26 Sep 2026
Falkirk, UK

Kelpies Half Marathon

  • 13.1 miles road running
  • Sun 11 Oct 2026
Chester, Cheshire, UK

MBNA Chester Metric Marathon

  • 26.2 km road running
  • Sat 14 Nov 2026
Leeds, West Yorkshire, UK

Yorkshire Weekend Saunter Series in Kirkstall | Half Marathon

  • 13.1 miles road running

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