The London Duathlon is one of only a small number of closed-route duathlons in the UK, making it a must-attend for people looking for personal best times.

Participants can choose from three distance options and a relay race: the half duathlon involves a 5k run, followed by a 22k bike ride, and a further 5k run; the full duathlon is double that distance (10k run, 44k bike ride, 10k run); and the ultra duathlon option challenges participants to run 20k, cycle 77k, and run a final 20k.

The event is aimed at people of all levels and as well as a superb stand-alone event, it is also seen as a great way for runners and cyclists to begin to build their way up to taking part in a full triathlon.

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