Tenorio was originally disqualified for a false start, but was reinstated and allowed to effectively run a solo time trial. As her time would have been sufficient to merit a non-automatic qualifying spot, an extra slot was created to ensure Abreu, the slowest of the existing 'non-automatic' qualifiers did not lose out.[2]
Semifinals
Qualification: The first 2 of each heat (Q) and the 2 fastest times (q) qualified