Centro probably would have been #1 in the world this year anyway but with Makhloufi finishing 2nd in Brussels in not that fast a time, Centro should be #1. He's only got the 19th fastest time but won the Olympics and World Indoors and was undefeated at 1500/mile this year except for a 9th place at the Portland meet which was more of a workout.
Centro will be #1 despite not running a mile or 1500 all year in Europe. Has that ever happened before? Maybe with Ryun?