In September 2012, he joined Artemis Racing for the final ACWS event in San Francisco and has since joined for the America's Cup in 2013. Nathan is one of the helmsmen for Artemis Racing the Challenger of Record for the 2013 America's Cup. He also skippered "Artemis" in the Louis Vuitton challenger series for the 2017 America's Cup, losing to Emirates Team New Zealand's.