|2003 Paris||4x400 m relay|
|1994 Bridgetown||4x100m relay|
Darling competed in 400 metres at the 1997 World Championships, where he was knocked out in the heats with 47.96 seconds. By 2003, his best season, he had lowered his personal best by over two seconds and achieved 45.83 seconds. He ran for the Bahamian 4 x 400 metres relay team at the 2003 World Championships, who were promoted from fourth to third place after the USA was stripped of the gold medal because Calvin Harrison was found guilty of a doping violation.
In 2004 he finished fifth in 4 x 400 metres relay at the 2004 World Indoor Championships, together with teammates Chris Brown, Timothy Munnings and Andretti Bain. Darling then ran for the Bahamain 4 x 400 metres relay team in the 2004 Olympics, but only in the qualifying heat.
Darling is married to fellow Bahamian track and field athlete Tonique Williams-Darling. Darling is the older brother of NFL wide receiver Devard Darling and the late Devaughn Darling. He is also the cousin of Bahamian Olympic triple jumper Frank Rutherford. He also enjoys coaching alongside ASU All-American Jordan Durham.