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29 marathons found for Registration open. Keep the list broad first, then tighten the filters when a race looks realistic.





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United Kingdom
09AUG
21.1K
Richmond Park Half Marathon August
United Kingdom
August 9, 2026 AUG
United Kingdom
09AUG
42.2K
Thames Meander Summer
United Kingdom
August 9, 2026 AUG
United Kingdom
15AUG
21.1K
Chepstow Running Festival August
United Kingdom
August 15, 2026 AUG
United Kingdom
16AUG
42.2K
Running Grand Prix Oulton Park August
United Kingdom
August 16, 2026 AUG
United Kingdom
22AUG
21.1K
Carsington Water 10K & Half Marathon August
United Kingdom
August 22, 2026 AUG
United Kingdom
30AUG
21.1K
Windsor Trail Run Half Marathon & 10K August
United Kingdom
August 30, 2026 AUG
United Kingdom
05SEP
ULTRA
Borders 8 Hour Challenge
United Kingdom
September 5, 2026 SEP
Spain
05SEP
42.2K
Trail Valle de Tena - 42K
Spain
September 5, 2026 SEP
Brazil
27SEP
42.2K
Maratona Salvador
Brazil
September 27, 2026 SEP
United Kingdom
03OCT
ULTRA
North Downs Way Ultra Run
United Kingdom
October 3, 2026 OCT
Germany
04OCT
42.2K
Generali Köln Marathon
Germany
October 4, 2026 OCT
Bangladesh
09OCT
21.1K
UCR Half Marathon
Bangladesh
October 9, 2026 Certified
United Kingdom
11OCT
21.1K
Cannock Chase Running Festival October
United Kingdom
October 11, 2026 OCT
United Kingdom
11OCT
21.1K
Hampton Court Palace Half Marathon October
United Kingdom
October 11, 2026 OCT
United Kingdom
17OCT
21.1K
Lee Valley Velopark October
United Kingdom
October 17, 2026 OCT
United Kingdom
18OCT
21.1K
Wyre Forest Trail Half Marathon & Super Seven Autumn
United Kingdom
October 18, 2026 OCT
Douala, Cameroon
21OCT
42.2K
Douala Marathon
Douala, Cameroon
October 21, 2026 OCT
Czech Republic
24OCT
42.2K
3rd Emil Zatopek Ostrava Golden Marathon
Czech Republic
October 24, 2026 OCT
United Kingdom
25OCT
21.1K
Monsal Trail Half Marathon & 10K Autumn Sunday
United Kingdom
October 25, 2026 OCT
United Kingdom
31OCT
42.2K
Pumpkin Marathon & Spooky Halloween Challenges
United Kingdom
October 31, 2026 OCT
United Kingdom
01NOV
21.1K
Birmingham Running Festival November
United Kingdom
November 1, 2026 NOV
Thailand
08NOV
42.2K
Korat Marathon
Thailand
November 8, 2026 Certified
Italy
08NOV
42.2K
Maratona Di Ravenna Cittá D'Arte
Italy
November 8, 2026 NOV
Little Bay, Sint Maarten
06DEC
42.2K
St. Maarten Marathon
Little Bay, Sint Maarten
December 6, 2026 DEC

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