Ironman World Championship champion’s “chunky” shoes spark controversy

Norway’s Gustav Iden ran a new marathon record on the Kona course in a pair of On shoes with a reported stack height of 50 mm

The prototype running shoe that helped win Kona

ASICS is cooking up a carbon-plated shoe

Top marathon splits from the Ironman World Championship

Here’s how triathletes fared for the marathon at the Ironman World Championship in Hawaii on Saturday