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.
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- 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
- £37.50-£39.50
SoBo Series | Volume 1 | Step into Christmas
Set along the beachfront promenade at Southbourne (SoBo), choose your own distance from 5K to ultra, along this flat, tarmacked, lapped route suitable for all abilities.
- Newcomers
- Enter online
- Flat
- PB
- Traffic free
- Event village
- Coast
- Public transport links
- Age 18 & over
- 7 hrs road running + 0 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
- 10K run
- Trail run
- 5K run
- Half marathon
- 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 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 + 3 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
- £30
- 5 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
- Flat
- PB
- Traffic free
- Fancy dress
- Urban
- Sustainability policy
- Relay
- Age 18 & over
- 26.2 miles road running
- Sun 26 Apr 2026
- £42
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.
- Enter online
- PB
- Traffic free
- Age 18 & over
- 26.2 miles trail running + 2054 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
- 10K run
- 5K run
- Fun run 4
- Half marathon
- Marathon 2
- 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 31 May 2026
- £36-£38
Circuit Du Sore Legs | Full Marathon
In its sixth year! Come take on the challenge of the track at Wodson Park. Do you have it in you to complete your distance on a 400-metre athletics track?
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles track and field
- Sun 19 Jul 2026
- £50.50-£60
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 13 Sep 2026
- £49.50-£56.50
- 5 charities
Richmond Marathon
Run 'The world's most scenic marathon' through London's greenest borough including Richmond Bridge and the Tow Path. Start inside the Kew Gardens with family fun music festival to finish!
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Age 18 & over
- 26.2 miles road running + 160 m ascent
- Sat 19 Sep 2026
- £39-£41
Oktoberfest | Marathon
Get your Oompah vibe on and enjoy a trip up the Leeds and Liverpool Canal. A 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 18 & over
- 26.2 miles trail running + 210 ft ascent
- Sun 27 Sep 2026
- £80
- 2 charities
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 11 Oct 2026
- £63-£69
MBNA Chester Marathon
A multi-award winning event and three-time winner of the UK's Best Marathon (up to 5,000 runners) as well as the UK’s only international marathon from the historic Roman/Medieval City of Chester!
- Chip timing
- Enter online
- GPS tracking
- Undulating
- PB
- Traffic free
- Age 18 & over
- 26.2 miles road running + 209 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