20KM WALK
IN A DISCIPLINE affected by doping more than most, China’s Liu Hong, who should have been on the medal rostrum four years ago in a drugs-tainted race, took gold after pulling away over the last 100 metres.
The world record-holder and world champion was engaged in a tight battle with Mexico’s Maria Guadalupe Gonzalez over the last 2km and it went down to the wire as the final gap was just two seconds.