Three of the four women who led USA to 4x200m victory in Nassau last year will return to the Bahamian capital.
The USA got a morale-boosting 4x100m win over arch-rivals Jamaica just one week ahead of the IAAF/BTC World Relays, Bahamas 2015, at the Penn Relays in Philadelphia on Saturday (25).
Trentavis Friday took the 200m title at the IAAF World Junior Championships, Oregon 2014 on the appropriate day of the week.
Kaylin Whitney became the third US female sprinter in the past decade to win the world junior 200m title and the 16-year-old Florida high school student did it in a commanding way with a wind-assisted 22.82 (2.4m/s).
Great Britain’s Dina Asher-Smith ran 11.23 to take the women’s 100m title in a dominating blocks-to-finish performance.
Young sprinters and hurdlers rewrote the record books, while Mary Cain confirmed her serious intentions at the under-20 level at the USA Junior Championships, held in Eugene on Saturday and Sunday (5-6).