Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Ivory Williams
Table title:
Personal bests
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Event </th><th colspan=1 rowspan=1 > Time (seconds) </th><th colspan=1 rowspan=1 > Venue </th><th colspan=1 rowspan=1 > Date </th></tr>
<tr> <td colspan=1 rowspan=1 > 60 meters </td><td colspan=1 rowspan=1 > 6.51 </td><td colspan=1 rowspan=1 > Boston, Massachusetts, United States </td><td colspan=1 rowspan=1 > February 6, 2010 </td></tr>
<tr> <td colspan=1 rowspan=1 > 100 meters </td><td class="highlighted"  colspan=1 rowspan=1 > 9.93 </td><td class="highlighted"  colspan=1 rowspan=1 > Rethymno, Greece </td><td colspan=1 rowspan=1 > July 20, 2009 </td></tr>
<tr> <td colspan=1 rowspan=1 > 200 meters </td><td colspan=1 rowspan=1 > 20.62 </td><td colspan=1 rowspan=1 > Houston, Texas, United States </td><td colspan=1 rowspan=1 > May 6, 2006 </td></tr>
<tr> <td colspan=1 rowspan=1 > 400 meters </td><td colspan=1 rowspan=1 > 46.25 </td><td colspan=1 rowspan=1 > Wichita, Kansas, United States </td><td colspan=1 rowspan=1 > April 16, 2005 </td></tr>
</table>
Question:
What was Ivory Williams' personal best?
Answer:
Ivory Williams recorded a personal best, running 9.93 seconds in Rethymno, Greece.