2015 IAAF World Relays
The 2015 IAAF World Relays was the second edition of the biennial, global track and field relay competition between nations. As in the previous year, it was held in May in Nassau, Bahamas. Apart from contesting for the Golden Baton for the best team overall, the competition also served as a qualifying stage for the 2016 Summer Olympics in the 4 × 100 and 4 × 400 metres relay. One major change compared to the inaugural edition was the replacement of the 4 × 1500 metres relay with the distance medley relay.