The at that time still almost unknown student of Alcorn State University Netter came fourth in the US elimination competitions in 1968 in the 100-meter run and in the 200-meter run . She was then nominated for the 4 x 100 meter relay at the 1968 Olympic Games in Mexico City. There the US team achieved a new world record in the preliminary round with 43.4 seconds (electronic timekeeping: 43.50 seconds). In the final she won the gold medal in the line-up of Barbara Ferrell , Margaret Bailes , Mildrette Netter and Wyomia Tyus before the relay from Cuba and the Soviet Union. In doing so, she improved the world record to 42.8 seconds (electronic timekeeping: 42.88 seconds).
As the only remaining runner in the team from 1968, Netter appeared again in the relay at the 1972 Olympic Games in Munich, but this time only reached fourth place.