Middle Distance Triathlons Found
View all ↓70.3 Middle Distance Triathlons 2025 - 2026
Middle Distance Triathlons: Distances
- Swim - 1.2 miles (1.9 km)
- Bike - 56 miles (90 km)
- Run 13.1 miles (21.1 km, ie a Half Marathon)
The Half Ironman triathlon is the perfect distance for any triathlete looking to step up to middle distance triathlons. Long enough to be a true test of endurance and mental strength but achievable for anyone willing to put in the hours over a few months. Completing 70.3 miles (or 113 kms if you are that way inclined) of swimming, cycling and running is certainly no mean feat.
Any middle distance triathlon is a gruelling challenge but finding it shouldn’t be so whether you are after a small local race or an international triathlon event, you will find it on Find a Race. Used by tens of thousands of triathletes the Find a Race event calendar lists Half Ironman, 70.3 and iron distance races around the UK and across the world. Check out our comprehensive 2025 - 2026 middle distance triathlon race calendar below: and use the “Refine” button to find your perfect race... and once you've recovered, don't forget to come back and check out our calendar of Full Ironman Triathlons :-)
Middle Distance Triathlon Events
ATW Grafman Middle Distance Triathlon
Grafham Water Visitor Centre, Marlow Park, Grafham, Huntingdon, Cambs, PE28 0BHChâteau de Chantilly Triathlon & Duathlon
Chantilly, OiseOffer
10% OFF
The One on the River - Marlow
Marlow, BuckinghamshireSlateman Triathlon & Duathlon
Caernarfon, GwyneddThe WMD TRIATHLON
Weymouth College, Cranford Avenue, Weymouth, DT4 7SWPlymouth Triathlon
Mount Edgcumbe, CremylThe One for the Planet powered by Climategames
WindsorThe Saxon Triathlon
Northampton, NorthamptonshireCholmondeley Castle Triathlon & Multisport
Malpas, Cheshire, Cheshire EastOffer
10% OFF
The Cardiff Triathlon & Duathlon
CardiffUK Ultimate Triathlon 2025
Ellesmere, ShropshireThe Northumbrian Full & Half Iron-Distance Triathlon & Trails Runs
Hexham, NorthumberlandATW Odyssey Triathlon
Riverside Park, Regatta Meadow, St Neots, Cambridgeshire, PE19 7ABThe One on the River - Marlow
Marlow, BuckinghamshireBelvoir Castle Triathlon & Mulitsport
Grantham, Belvoir, LeicestershireOffer
10% OFF
On The Edge Middle Distance Triathlon
Warwick, WarwickshireTriBourne Festival of Endurance
Eastbourne, East SussexSnowman Duathlon & Triathlon
Betws-y-Coed, Conwy Principal AreaCowman Triathlon
Olney, BuckinghamshireLondon T100 Triathlon 2025
LondonShropshire Triathlon 2025
Ellesmere, ShropshireROADFORD LAKE TRIATHLON AUTUMN
Roadford Lake, Broadwoodwidger, Lifton, PL16 0RLThe One on the Lake - Dorney
Windsor, BerkshireSundowner Triathlon
Allerthorpe Lakeland Park, Melbourne Road, Pocklington, York YO42 4RLThe Brutal Triathlons & Seriously Brutal Duathlons
Caernarfon, GwyneddATW Big East & Maldon Triathlon
Promenade Park, Park Drive, Maldon, Essex, CM9 5JQThe One on the River - Henley
Henley-on-Thames, OxfordshireSuperfeet Sandman - Triathlon & Duathlon
Llanfairpwllgwyngyll, GwyneddHever Castle Triathlon & Multisport
Edenbridge, KentOffer
10% OFF