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:
Tomás de Teresa
Table title:
International competitions
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Year </th><th colspan=1 rowspan=1 > Competition </th><th colspan=1 rowspan=1 > Venue </th><th colspan=1 rowspan=1 > Position </th><th colspan=1 rowspan=1 > Event </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <th colspan=6 rowspan=1 > Representing Spain </th></tr>
<tr> <td colspan=1 rowspan=1 > 1987 </td><td colspan=1 rowspan=1 > European Junior Championships </td><td colspan=1 rowspan=1 > Birmingham, United Kingdom </td><td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:49.37 </td></tr>
<tr> <td colspan=1 rowspan=2 > 1988 </td><td colspan=1 rowspan=1 > European Indoor Championships </td><td colspan=1 rowspan=1 > Budapest, Hungary </td><td colspan=1 rowspan=1 > 16th (h) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 2:00.65 </td></tr>
<tr> <td colspan=1 rowspan=1 > Olympic Games </td><td colspan=1 rowspan=1 > Seoul, South Korea </td><td colspan=1 rowspan=1 > 26th (qf) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:48.01 </td></tr>
<tr> <td colspan=1 rowspan=3 > 1989 </td><td colspan=1 rowspan=1 > European Indoor Championships </td><td colspan=1 rowspan=1 > The Hague, Netherlands </td><td colspan=1 rowspan=1 > 12th (sf) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:52.54 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Indoor Championships </td><td colspan=1 rowspan=1 > Budapest, Hungary </td><td colspan=1 rowspan=1 > 16th (sf) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:50.19 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Cup </td><td colspan=1 rowspan=1 > Barcelona, Spain </td><td colspan=1 rowspan=1 > 8th </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:47.94 </td></tr>
<tr> <td colspan=1 rowspan=2 > 1990 </td><td colspan=1 rowspan=1 > European Indoor Championships </td><td colspan=1 rowspan=1 > Glasgow, United Kingdom </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:47.22 </td></tr>
<tr> <td colspan=1 rowspan=1 > European Championships </td><td colspan=1 rowspan=1 > Split, Yugoslavia </td><td colspan=1 rowspan=1 > 14th (sf) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:48.73 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > 1991 </td><td colspan=1 rowspan=1 > World Indoor Championships </td><td colspan=1 rowspan=1 > Seville, Spain </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:47.82 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > World Championships </td><td class="highlighted"  colspan=1 rowspan=1 > Tokyo, Japan </td><td colspan=1 rowspan=1 > 8th </td><td class="highlighted"  colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:47.65 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1992 </td><td colspan=1 rowspan=1 > Olympic Games </td><td colspan=1 rowspan=1 > Barcelona, Spain </td><td colspan=1 rowspan=1 > 7th (sf) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:46.08 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1993 </td><td colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Stuttgart, Germany </td><td colspan=1 rowspan=1 > 22nd (h) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:49.79 </td></tr>
<tr> <td colspan=1 rowspan=2 > 1994 </td><td colspan=1 rowspan=1 > European Championships </td><td colspan=1 rowspan=1 > Helsinki, Finland </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:46.57 </td></tr>
<tr> <td colspan=1 rowspan=1 > World Cup </td><td colspan=1 rowspan=1 > London, United Kingdom </td><td colspan=1 rowspan=1 > 6th </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:48.041 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1995 </td><td colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Gothenburg, Sweden </td><td colspan=1 rowspan=1 > 34th (h) </td><td colspan=1 rowspan=1 > 800 m </td><td colspan=1 rowspan=1 > 1:49.07 </td></tr>
</table>
Question:
Where did Tomás de Teresa perform the best in his career?
Answer:
Tomás de Teresa placed 1st in 1986 at the European Junior Championships in Birmingham, United Kingdom.