Crouser breaks own world mark with 23.56m throw in LA US sprint star Sha'Carri Richardson among scratches in 100m Olympic and world shot put champion Ryan Crouser produced a sensational performance to obliterate his own world record at the Los Angeles Grand Prix on Saturday. The 30-year-old American star heaved a mammoth 23.56m throw at Drake Stadium to smash his previous world mark of 23.37m set at the US Olympic trials in Eugene in 2021.