She was lower down the order at the 2013 World Championships in Athletics marathon , coming 21st overall in her first outing at the tournament .
Mayorova began the next year with a fourth - place finish at the 2013 Tokyo Marathon .
Mayorova was lower down the order at the 2013 World Championships in Athletics marathon , coming 21st overall in Mayorova 's first outing at the tournament .
Mayorova began the next year with a fourth - place finish at the 2013 Tokyo Marathon .