sentences: (He also did not qualify for the 1984 Olympics, only finishing 5th in his semi-final of the 100 m.)
  
  On May 11, 1980 at a meet in Westwood, Los Angeles, California, Sanford set the unofficial low altitude world record in the 100 metres at 10.02 s, a mark which stood for just over a year, when it was improved by Carl Lewis to 10.00 s.
  
  In 1981 he set the world's best year performance in the men's 200 metres clocking 20.20 s on 10 May at a meet in Westwood, Los Angeles.Sanford was ranked among the best in the US and the world in both the 100 and 200 m sprint events from 1978 to 1981, according to the votes of the experts of "Track and Field News".