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 Box End Triathlon
Box End Lakes,Box End Rd, Bedford MK43 8RNATW Centurion 100KM Triathlon Box End
Box End Lakes,Box End Rd, Bedford MK43 8RNRoadford Lake Triathlon
Roadford Lake, Broadwoodwidger, Lifton, PL16 0RLLough Cutra Castle Triathlon and Multisport
Gaillimh, County GalwayOffer
10% OFF
ATW Grafman Middle Distance Triathlon
Grafham Water Visitor Centre, Marlow Park, Grafham, Huntingdon, Cambs, PE28 0BHChâteau de Chantilly Triathlon & Duathlon
Chantilly, OiseOffer
10% OFF
Slateman Triathlon & Duathlon
Caernarfon, GwyneddThe One on the River - Marlow
Marlow, BuckinghamshireThe WMD TRIATHLON
Weymouth College, Cranford Avenue, Weymouth, DT4 7SWThe Saxon Triathlon
Northampton, NorthamptonshirePlymouth Triathlon
Mount Edgcumbe, CremylThe One for the Planet powered by Climategames
WindsorCholmondeley 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
TriBourne Festival of Endurance
Eastbourne, East SussexOn The Edge Middle Distance Triathlon
Warwick, WarwickshireSnowman Duathlon & Triathlon
Betws-y-Coed, Conwy Principal AreaLondon T100 Triathlon 2025
LondonShropshire Triathlon 2025
Ellesmere, ShropshireBelvoir Castle Triathlon - Multi Sport Weekend
Grantham, LincolnshireROADFORD 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 One on the River - Henley
Henley-on-Thames, OxfordshireATW Big East & Maldon Triathlon
Promenade Park, Park Drive, Maldon, Essex, CM9 5JQSuperfeet Sandman - Triathlon & Duathlon
Llanfairpwllgwyngyll, GwyneddHever Castle Triathlon & Multisport
Edenbridge, KentOffer
10% OFF