Sports & Leisure, Swimming.
Swimming now has its own marathon. Marathon Swims is London's marathon of swimming. Swim in the pool of champions - the London Aquatics Centre, on Queen Elizabeth Olympic Park. Take on the Marathon 10k, Half Marathon 5k or 1k Challenge. We have innovated to create a stand-out distance challenge event. RFID chip technology tracks your progress and provides instant, reliable results. Live timing available online and lap times provided every lap.