A WORLDWIDERUNNING NETWORK SITE — YOUR INTERNATIONAL RUNNING EVENTS CALENDAR
Sep
19
2026
Ashbourne, England (United Kingdom) - "Tissington Trail Half Marathon". A breathtaking half marathon racing down the length of the old disused railway with huge views of the Derbyshire Dales. www.nice-work.org.uk/e/tissington-trail-half-marathon-weekend-9222
Sep
20
2026
Windsor, England (United Kingdom) - "Eton Dorney Triathlon (September)". The Olympic venue, Eton Dorney, offers pan-flat, traffic-free roads and a beautiful clear lake. The venue is private and specifically hired for the purpose of a traffic-free triathlon event. Taking place on Sunday, 20 September 2026, the event offers several distances and entry options: Individual Super Sprint (450m swim, 10km cycle, 2.5km run) at £62.00, Individual Sprint (750m swim, 20km cycle, 5km run) at £72.00, and Individual Standard (1.5km swim, 40km cycle, 10km run) at £82.00. Team options include Super Sprint at £77.00, Sprint at £87.00, and Standard at £97.00. www.votwo.co.uk/eton-dorney-triathlon-2026
Sep
20
2026
Belfast, Northern Ireland (United Kingdom) - "Belfast City Half Marathon". The Phoenix Energy Belfast City Half Marathon is the biggest Half Marathon event in Northern Ireland and has seen a massive growth, selling out year on year. The race starts and finishes on Ormeau Embankment and takes in the South, East, North and West of Belfast. https://belfastcitymarathon.com/events/2026-phoenix-energy-belfast-city-half-marathon
Sep
20
2026
Badminton, England (United Kingdom) - "Badminton Marathon & Half Marathon". Badminton is a stunning private estate which only open it's doors to the public for special events. The estate has a long and rich history; it can trace it's routes back to the Roman period with the remains of several Roman villas in the grounds. The estate was enhanced by many renowned architects and designers including Capability Brown and we are very fortunate to explore this beautiful landscape across the running route. The sport of Badminton can trace it's roots in the estate with the dimensions of a Badminton Court being reflect in the estate hall. www.relishrunningraces.com/badminton-estate-marathon-half-10km-5km-fun-run.php
Sep
20
2026
Redford, England (United Kingdom) - "Hamsterley Forest Trail Run". Set on undulating, well-marked trails, the course rewards steady pacing and confident footing. You will enjoy shaded stretches beneath towering pines, clearings with wide views, and friendly support from our marshal team all the way back to the finish gantry.Experience the North East’s woodland at its best with a trail run through Hamsterley. www.runthrough.co.uk/series/discover-series
Sep
20
2026
Clipston, England (United Kingdom) - "Clipston Trail Half Marathon & 5 Miler". Enjoy the rolling hills of the Clipston Trail Races – run on trails across the beautiful countryside surrounding Clipston! The 5-mile (ish) race is a great introduction to trail running or just something a little shorter! https://raceharborough.co.uk/clipston-trail-half
Sep
20
2026
Royal Tunbridge Wells, England (United Kingdom) - "Hospice Run". A much-loved, closed-road running event supporting Hospice in the Weald. Whether you’re taking on your first 5k or testing yourself over our scenic half marathon, Hospice Run promises to be a great community event for every runner. Choose between our 5k, 10k, half marathon or family route. www.hospiceintheweald.org.uk/events/hospice-run-2026
Sep
20
2026
Portinscale, England (United Kingdom) - "Keswick Half Marathon". This half marathon is said to feature one of the most scenic routes in the country. The challenging course takes you around Derwentwater with an extra loop beforehand into the Newlands valley. www.keswickhalfmarathon.co.uk
Sep
20
2026
London, England (United Kingdom) - "Richmond Park Trail Half Marathon". Take on a picturesque autumn challenge at the Windsor Trail Run, set in the heart of royal Berkshire. This trail event combines history, nature, and a flat off-road course that’s perfect for a November run. The 10K and Half Marathon routes follow peaceful trails from Alexandra Gardens. Whether you’re aiming for a new PB or simply looking to enjoy the crisp air and seasonal colours, this is an unforgettable run for your calendar. www.runthrough.co.uk/event/windsor-trail-run-november-2026
Sep
20
2026
Mersea Island, England (United Kingdom) - "Mersea Round the Island Race". We are excited to bring this iconic event back to the Essex trail running calendar in the most unique location. Supporting the Mersea Island Lions charity through a proportion of your entry fee, the event will continue to raise money for the Mersea Island Lions, helping them support the community. www.hareandtortoiserunning.co.uk/race-events
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