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

Barkley finisher runs 2nd fastest marathon among amateurs at Ironman World Championship

John Kelly runs three hours for the marathon at the 2017 Ironman World Championship