She entered the final as a favorite , took the lead after six of 10 hurdles but hit the ninth , falling to seventh place .
Jones ' best - ever time came in the 2008 Olympic semifinals , a 12.43 .
Jones entered the final as a favorite , took the lead after six of 10 hurdles but hit the ninth , falling to seventh place .
Jones ' best - ever time came in the 2008 Olympic semifinals , a 12.43 .