Michael Phelps was quickly back to his dominating best, powering to a pair of victories in less than an hour on his return to competition at the Charlotte UltraSwim Grand Prix Friday.
The Olympics have come a long way since the first one in Athens where athletes alone mattered. Over a century later, technology too is helping athletes at the 2008 Beijing Olympics games to smash records.
The sport's governing body (WA) said that with immediate effect and for elite competition only, road shoes must have soles no thicker than 40mm and not contain more than one rigid, embedded plate.