Middle distance aquabikes in the UK
A middle distance aquabike is basically a Half Ironman without the half marathon at the end so generally involve a 1.2-mile swim (1.9km) and a 56-mile bike ride (90km). It's a real feat of endurance but do-able if you are willing to put in the training time. Select your location for middle distance aquabikes in your area or scroll down to see events coming up.
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Map viewMiddle distance aquabikes in 2025/2026
Featured events are listed below - select a month/region or the map view to see all events.
- Sat 16 May 2026
- £138
Big East Middle Distance Aquabike
The Big East and Maldon Aquabike is brought to you by the largest triathlon organiser in the UK! A great experience featuring a tidal river swim.
- 1500 m river swimming
- 86 km road cycling
- Sun 24 May 2026
- £97
ATW Box End Centurion Aquabikus
Take on the ATW Box End Centurion Aquabikus — a 100km swim-bike endurance challenge featuring crystal-clear water, fast scenic bike laps and outstanding support at this stunning venue.
- 2250 m lake swimming
- 81 km road cycling
- Sun 7 Jun 2026
- £140
ATW Grafman Middle Distance Aquabike
A fantastic aquabike event set at the superb Grafham Water venue for multi-sports athletes not wanting to run. Well-organised over a scenic course and a superb medal awaiting at the finish line.
- 1900 m lake swimming
- 91 km road cycling
- Sun 5 Jul 2026
- £115
ATW Odyssey At Box End Triathlon | Half Distance Aquabike
Get ready for one of the UK’s most exciting aquabike events of the year! Dive into crystal-clear lake waters at Box End, then ride a smooth, rolling bike course.
- 2250 m lake swimming
- 96 km road cycling
- Sat 8 Aug 2026
- £120
ATW Odyssey Half Distance Aquabike
Complete your own Odyssey on a journey of self-discovery in the Cambridgeshire countryside comprising a swim in the meandering River Ouse followed by a cycle around scenic countryside.
- 1900 m river swimming
- 90 km road cycling
- Sat 8 Aug 2026
- £120
ATW First To Full Triathlon Festival | Half Distance Aquabike
Be part of a UK first. This isn’t just another triathlon—it’s the first event of its kind where you decide the distance, from sprint to full, and race your way.
- 1900 m river swimming
- 90 km road cycling
- Sat 12 Sep 2026
- £85
Sundowner 70.3 Aquabike
The Sundowner 70.3 Aquabike is back! Race as the sun sets in an unforgettable triathlon event at Allerthorpe Lakeland Park in Yorkshire which is now back on the race calendar.
- 1900 m lake swimming
- 90 km road cycling
Middle distance aquabike events near you
Select your location for middle distance aquabikes in your area.