Team U.S.A.’s most-famous virgin was almost its biggest choke. Lolo Jones just barely qualified for the 100m hurdles Tuesday, sneaking into the last spot after being the “fastest loser” in her semifinal heat. The semifinal round consists of three heats. The top two finishers in each hit automatically qualify, with the two “fastest losers” from the three rounds joining them. Running a 12.71-second race, Jones qualified by the thin margin of four 100ths of a second.