By Michael Bascombe Grenada's star athlete, Kirani James, has posted a personal-best, NCAA automatic qualifying time of 45.24, setting a new junior world record for the 400m dash, indoors at the SEC Championships on Sunday at the Randal Tyson Track Centre in Arkansas. However, the IAAF doesn't ratify world junior indoor records. The records are ratified by the Track & FieldNews Records Committee.