Macey's breakthrough season came in 1999 when he won silver at the world championships in Seville.
But injury hampered his progress in the sport and it was not until 2001 that he managed to get on the medal podium again when he took bronze at the world championships in Edmonton.
More years of injury followed before Macey's moment of glory came, winning gold at the 2006 Commonwealth Games in Melbourne.
His two appearances at the Olympics, in 2000 and 2004, ended with two fourth-placed finishes.
However, a third appearance proved a step too far and Macey's failure has given a chance for 20-year-old Daniel Awde to prove his worth for Great Britain in the decathlon in Beijing.
"My only regret is that I didn't have a shot at the title more often," Macey said.
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