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:
Tyler Christopher (athlete)
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 > 6.70 </td><td colspan=1 rowspan=1 > Winnipeg, Manitoba, Canada </td><td colspan=1 rowspan=1 > February 2, 2008 </td></tr>
<tr> <td colspan=1 rowspan=1 > 150 meters </td><td colspan=1 rowspan=1 > 15.17 </td><td colspan=1 rowspan=1 > Sainte Anne, Quebec, Canada </td><td colspan=1 rowspan=1 > May 20, 2004 </td></tr>
<tr> <td colspan=1 rowspan=1 > 200 meters </td><td colspan=1 rowspan=1 > 20.49 </td><td colspan=1 rowspan=1 > Claremont, California, United States </td><td colspan=1 rowspan=1 > April 15, 2005 </td></tr>
<tr> <td colspan=1 rowspan=1 > 300 meters </td><td colspan=1 rowspan=1 > 31.77 </td><td colspan=1 rowspan=1 > Sainte Anne, Quebec, Canada </td><td colspan=1 rowspan=1 > May 20, 2004 </td></tr>
<tr> <td colspan=1 rowspan=1 > 400 meters </td><td colspan=1 rowspan=1 > 44.44 NR </td><td colspan=1 rowspan=1 > Helsinki, Finland </td><td colspan=1 rowspan=1 > August 20, 2005 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 400 meters (indoor) </td><td class="highlighted"  colspan=1 rowspan=1 > 45.67 NR </td><td class="highlighted"  colspan=1 rowspan=1 > Valencia, Spain </td><td class="highlighted"  colspan=1 rowspan=1 > March 9, 2008 </td></tr>
</table>
Question:
What did Tyler Christopher achieve on March 9, 2008?
Answer:
On March 9, 2008, Tyler finished the 400 meters at the 2008 IAAF Indoor Championships in Valencia, Spain with a record time of 45.67 s.