Marathons with PB potential in UK in May 2026
Find marathons with pb potential in UK in May 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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- Mon 4 May
- £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.
- 26.2 miles road running + 938 ft ascent
- Sun 10 May
- £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.
- 26.2 miles road running + 1247 ft ascent
- Sat 23 - Sun 24 May
- FREE-£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!
- Marathon 2
- Half marathon
- 10K run
- 5K run
- Fun run 4
- Sun 24 May
- £40-£42
Get the Hull out of Here | Marathon
Based out of East Hull this marathon 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.
- 26.2 miles trail running
- Sun 31 May
- £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?
- 26.2 miles track and field