Sale Harriers' Stephanie Pywell celebrates winning the Women's High Jump Final during the Aviva National Championships, Alexander Stadium, Birmingham Stock Photo - Alamy
TIME - In 2019, Eliud Kipchoge ran 26.2 miles in 1:59:40, becoming the first human to run a sub-two-hour marathon. His not-so-secret weapon: a pair of high-tech kicks, the Nike Air Zoom