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:
Róisín Smyth
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 Ireland or Northern Ireland </th></tr>
<tr> <td colspan=1 rowspan=2 > 1980 </td><td class="highlighted"  colspan=1 rowspan=2 > IAAF World Cross Country Championships </td><td colspan=1 rowspan=2 > Paris, France </td><td colspan=1 rowspan=1 > 101st </td><td colspan=1 rowspan=1 > Senior women's race </td><td colspan=1 rowspan=1 > Northern Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > 17th </td><td colspan=1 rowspan=1 > Women's team result </td><td colspan=1 rowspan=1 > Northern Ireland </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=3 > 1984 </td><td class="highlighted"  colspan=1 rowspan=2 > IAAF World Cross Country Championships </td><td colspan=1 rowspan=2 > East Rutherford, United States </td><td colspan=1 rowspan=1 > 22nd </td><td colspan=1 rowspan=1 > Senior women's race </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > 4th </td><td colspan=1 rowspan=1 > Women's team result </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Summer Olympics </td><td colspan=1 rowspan=1 > Los Angeles, United States </td><td class="highlighted"  colspan=1 rowspan=1 > heat </td><td class="highlighted"  colspan=1 rowspan=1 > 3,000 metres </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > 1986 </td><td colspan=1 rowspan=1 > European Athletics Indoor Championships </td><td colspan=1 rowspan=1 > Madrid, Spain </td><td colspan=1 rowspan=1 > 7th </td><td colspan=1 rowspan=1 > 1500 m </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=2 > 1988 </td><td class="highlighted"  colspan=1 rowspan=2 > IAAF World Cross Country Championships </td><td colspan=1 rowspan=2 > Auckland, New Zealand </td><td colspan=1 rowspan=1 > 112th </td><td colspan=1 rowspan=1 > Senior women's race </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > 17th </td><td colspan=1 rowspan=1 > Women's team result </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=2 > 1989 </td><td class="highlighted"  colspan=1 rowspan=2 > IAAF World Cross Country Championships </td><td colspan=1 rowspan=2 > Stavanger, Norway </td><td colspan=1 rowspan=1 > 78th </td><td colspan=1 rowspan=1 > Senior women's race </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > 15th </td><td colspan=1 rowspan=1 > Women's team result </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=4 > 1990 </td><td class="highlighted"  colspan=1 rowspan=2 > IAAF World Cross Country Championships </td><td colspan=1 rowspan=2 > Aix-les-Bains, France </td><td colspan=1 rowspan=1 > 68th </td><td colspan=1 rowspan=1 > Senior women's race </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > 17th </td><td colspan=1 rowspan=1 > Women's team result </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > European Athletics Indoor Championships </td><td colspan=1 rowspan=1 > Glasgow, UK </td><td colspan=1 rowspan=1 > 5th </td><td colspan=1 rowspan=1 > 3000 m </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > European Athletics Championships </td><td colspan=1 rowspan=1 > Split, Yugoslavia </td><td colspan=1 rowspan=1 > 13th </td><td colspan=1 rowspan=1 > 3000 m </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=3 > 1991 </td><td class="highlighted"  colspan=1 rowspan=2 > IAAF World Cross Country Championships </td><td colspan=1 rowspan=2 > Antwerp, Belgium </td><td colspan=1 rowspan=1 > 111th </td><td colspan=1 rowspan=1 > Senior women's race </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td colspan=1 rowspan=1 > 19th </td><td colspan=1 rowspan=1 > Women's team race </td><td colspan=1 rowspan=1 > Ireland </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > World Championships </td><td colspan=1 rowspan=1 > Tokyo, Japan </td><td colspan=1 rowspan=1 > heat </td><td colspan=1 rowspan=1 > 3000 m </td><td colspan=1 rowspan=1 > Ireland </td></tr>
</table>
Question:
What event did Róisín Smyth compete in at the 1984 Summer Olympics and what are some other events he competed in?
Answer:
Róisín Smyth competed in the 3000 m heats at the 1984 Summer Olympics, the 1991 World Championships, as well as at six World Cross Country championships.