He has since lowered his best to 4 : 04.47 .
Principe is the lone returner from last year 's race , where he placed fourth in a then - PR of 4 : 11.53 .
Principe has since lowered Principe 's best to 4 : 04.47 .
Principe is the lone returner from last year 's race , where he placed fourth in a then - PR of 4 : 11.53 .