Speedy qualified for the South African squad, as a lone female rider, in the women's cross-country race at the 2008 Summer Olympics in Beijing by finishing first and receiving an automatic berth from the UCI African Championships and by recording dominant triumphs in the final stage of the Mazda MTN National Cross-Country Series in Nelspruit. With only two laps left to complete the race, Speedy suffered from a heat-related fatigue, and instead decided to pull off directly from the course, finishing only in twenty-second place.