Marathons with PB potential in UK
Find marathons with pb potential in UK in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
Filter by date
This week
This weekend
Next week
Next weekend
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jul
Sep
Autumn
Winter
Spring
Summer
Filter by place
South East
East of England
East Midlands
West Midlands
Yorkshire
North West
Scotland
Wales
Everywhere
Filter by category
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sat 25 Oct
- £39-£41
Hubble Bubble & Ghostly 1 Mile | Day 1 | Marathon
A Halloween-themed running event 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 16 & over
- 26.2 miles trail running + 288 ft ascent
- Sun 26 Oct
- £39-£41
Hubble Bubble | Day 2 | Marathon
A Halloween-themed running event 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
- 26.2 miles trail running + 299 ft ascent
- Sat 1 Nov
- £35.50-£37.50
Catherine Wheel Canter | Full Marathon
Welcome to the Fireworks Festival of Running! Come and tackle the track to see whether you can complete a marathon over multiple laps of the 400m circuit - and how fast you can do it.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles track and field
- Sat 13 Dec
- £39-£41
Crikey its the Christmas Cracker | Day 1 | Marathon
Take on this out and back course to really get in the Christmas spirit. This event isn't just about the race itself, the activities at Race HQ are bound start a jolly atmosphere!
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 299 ft ascent
- Sun 14 Dec
- £39-£41
Crikey its the Christmas Cracker | Day 2 | Marathon
An out and back course to really get you in the Christmas spirit with activities at Race HQ bound start a jolly atmosphere, whether you want a PB or to challenge yourself over marathon distance.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 299 ft ascent
- Sun 11 Jan 2026
- £15-£58
Skipton Sweetie Skedaddle
Enjoy a trip up the Leeds and Liverpool Canal this winter on your choice of distance, along the flat towpath for runners of all abilities, from novices to PB chasers!
- Families
- Newcomers
- Event village
- Age 11 & over
- 5K run
- 10K run
- Half marathon
- Trail run
- Marathon
- + 2 more races
- Sat 14 Feb 2026
- £15-£56
Besotted at Bingley
Enjoy a trip up the Leeds and Liverpool Canal this Valentines. Perfect for runners of all abilities, from novices to Ultra PB chasers, this is one to warm the depths of your heart.
- Newcomers
- Event village
- Age 16 & over
- 5K run
- 10K run
- Half marathon
- Trail run
- Marathon
- + 2 more races
- Sat 14 Mar 2026
- £40-£42
Spring Time Canal Canter | Marathon
Fast, flat, PB-grabbing event on traffic-free trails and the canal towpath with a bespoke medal and treats at the finish line. All levels of runner welcome.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 299 ft ascent
- Sun 15 Mar 2026
- £32-£34
Essex 20
The Essex 20 is held annually and is an ideal 20-mile race for the build-up to Marathon season, set over a 5-lap, flat, fast, tarmac course. Also hosting the Essex County Road Running Championships.
- Recycling
- Newcomers
- Enter online
- Flat
- PB
- Event village
- Sustainability policy
- Age 18 & over
- 20 miles road running + 195 ft ascent
- Sun 29 Mar 2026
- £33
Brett Lydd 20 Mile
A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.
- Chip timing
- Enter online
- Flat
- PB
- Age 18 & over
- 20 miles road running + 206 ft ascent
- Sun 5 Apr 2026
- £40-£42
Lets Motor along the Towpath | Rodley | Marathon
You'd be an April Fool to miss this one. Enjoy a trip up the flat and event towpath of the Leeds and Liverpool Canal from Rodley. One to warm the depths of your heart.
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 381 ft ascent
- Sun 19 Apr 2026
- £89.99-£169
- 23 charities
adidas Manchester Marathon
Experience the UK’s friendliest and flattest major marathon with huge crowd support on a route with PB potential plus chunky medals and relay options.
- Trees not tees
- Venue accessible
- Recycling
- Newcomers
- Entertainment
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Fancy dress
- Urban
- Sustainability policy
- Relay
- Age 18 & over
- 26.2 miles road running
- Sun 26 Apr 2026
- £45
Tissington Trail Marathon & Half Marathon | Marathon
Come and join this slice of racing joy through the picturesque Derbyshire countryside. With a slightly downhill second half - you've got gravity on your side and a truly beautiful route.
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 2296 ft ascent
- Mon 4 May 2026
- £50-£60
MK Marathon
A multi award-winning marathon consistently ranked in the top 10 UK marathons with a stadium finish to give you goosebumps! AIMS-certified and BARR Gold accreditation for outstanding race management.
- Chip timing
- Enter online
- GPS tracking
- Flat
- PB
- Traffic free
- Relay
- Age 18 & over
- 26.2 miles road running + 938 ft ascent
- Sun 10 May 2026
- £33-£38
Zig Zag Marathon and Half | Full Marathon
Ideal for runners who want to get a marathon 'Good For Age' place as it is over an officially measured course on the Kirtling Road Route which is mildly undulating and very scenic.
- Enter online
- Undulating
- PB
- Age 18 & over
- 26.2 miles road running + 1247 ft ascent
- Sat 23 - Sun 24 May 2026
- £18.50-£176
Edinburgh Marathon Festival
Experience Edinburgh's festival of running on Bank Holiday weekend! With nine distances on offer there's something for everyone - come and smash your PB at the marathon, previously voted UK's fastest!
- Families
- Venue accessible
- Recycling
- Newcomers
- Fancy dress
- Event village
- Urban
- Park
- Rural
- Coast
- Sustainability policy
- Public transport links
- Age 3 & over
- Marathon 2
- Half marathon
- 10K run
- 5K run
- Fun run 4
- Sun 24 May 2026
- £40-£42
Get the Hull out of Here | Marathon
Based out of East Hull this race will run out on the TransPennine Trail towards Hornsea, it should allow runners to enjoy a flat even surface ideal or both beginners or for seasoned athletes...
- Enter online
- Flat
- PB
- Age 18 & over
- 26.2 miles trail running + 66 ft ascent
- Sun 19 Jul 2026
- £43-£50
Revesby Running Festival | Challenge The Estate
A new and totally unique running challenge where you aim to run 10 x 5K laps which get faster the more you complete. How far can you go?
- Enter online
- PB
- Traffic free
- Age 18 & over
- 1 day trail running + 45 m ascent
- Sun 27 Sep 2026
- £70
- 1 charity
Baxters Loch Ness Marathon and Festival of Running | Loch Ness Marathon
Loch Ness Marathon is a monster race - running point-to-point alongside the shores of the most famous loch in the world!
- Chip timing
- Enter online
- Undulating
- PB
- Traffic free
- Age 18 & over
- 26.2 miles road running + 350 m ascent
- Sun 7 Dec
Running GP at Goodwood Motor Circuit | Marathon
- 26.2 miles road running
- Sun 8 Mar 2026
Great Welsh Marathon Events | Full Marathon
- 26.2 miles road running + 363 ft ascent
- Sun 26 Apr 2026
Shakespeare Marathon & Half Marathon | Full Marathon
- 26.2 miles road running + 188 m ascent