JOHANNESBURG (AP) -- World champion Amantle Montsho of Botswana will run her second 400-meter race of 2012 at the SA Open Championships in South Africa.
Montsho took gold in Daegu, South Korea, last August, edging American Allyson Felix in a surprise victory to become Botswana's first track and field world champion.
She's now aiming to win her country's first Olympic medal at the London Games, having set a personal best to win the world title in 49.56 seconds.
The 28-year-old Montsho ran 50.94 seconds in Dakar, Senegal -- where she's based -- in her season-opener last month.
Organizers announced on Thursday that she will run on Friday, the first day of the two-day meet in Pretoria.