Nigeria’s Tobi Amusan reignited the debate about track and field’s new super shoes as she unexpectedly shattered the 100m hurdles world record in Eugene.

On a night when Mondo Duplantis also broke his own pole vault world record, Amusan ran a staggering 12.12 seconds in her semi-final to beat Kendra Harrison’s old best by 0.08 sec – smashing her personal best time by nearly three-tenths of a second. Read More