Greece’s female marathon record-holder has become the first woman to recreate the legendary run of an army messenger between Athens and Marathon 2,500 years ago by covering 540km in seven days. “There isn’t a bone or muscle in my body that doesn’t hurt,” said a smiling Polyzou, whose effort entailed running a double marathon every day for a week in blazing midsummer heat with minimal rest in-between. A marathon run is 42km. Culminate with Athens Classic Marathon Oct 31, over 20,000…