She had hoped to run 14 : 40 this year .
Defar broke the unofficial World best at Carlsbad last year , shattering the previous mark by five seconds when she ran 14 : 46 .
Defar had hoped to run 14 : 40 this year .
Defar broke the unofficial World best at Carlsbad last year , shattering the previous mark by five seconds when she ran 14 : 46 .