Rob Heffernan relinquished his 50-kilometre walk World Championship in Beijing this morning.
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The Corkman put in a valiant effort to finish fifth in this morning's race.
Slovakia's Matej Toth was the man to claim gold.
There was also a fine performance from the men's 4-by-400-metres relay team, who ran a new national record of 3-minutes 1-point-2-6 seconds.
The team, with Sixmilebridge's Timmy Crowe as part of the squad, were 13th overall.
Later, Usain Bolt will gun for a third gold of the Championships, when he anchors the Jamaican team in the men's 4-by-100 metre relay.