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:
Patience Okon George
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 Nigeria </th></tr>
<tr> <td colspan=1 rowspan=2 > 2013 </td><td colspan=1 rowspan=2 > World Championships </td><td colspan=1 rowspan=2 > Moscow, Russia </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 4 × 100 m relay </td><td colspan=1 rowspan=1 > DQ </td></tr>
<tr> <td colspan=1 rowspan=1 > 6th </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:27.57 </td></tr>
<tr> <td colspan=1 rowspan=8 > 2014 </td><td colspan=1 rowspan=1 > World Indoor Championships </td><td colspan=1 rowspan=1 > Sopot, Poland </td><td colspan=1 rowspan=1 > 5th </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:31.59 </td></tr>
<tr> <td colspan=1 rowspan=2 > IAAF World Relays </td><td colspan=1 rowspan=2 > Nassau, Bahamas </td><td colspan=1 rowspan=1 > 7th </td><td colspan=1 rowspan=1 > 4 × 200 m relay </td><td colspan=1 rowspan=1 > 1:33.71 </td></tr>
<tr> <td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:23.41 </td></tr>
<tr> <td colspan=1 rowspan=2 > Commonwealth Games </td><td colspan=1 rowspan=2 > Glasgow, United Kingdom </td><td colspan=1 rowspan=1 > 4th (h) </td><td colspan=1 rowspan=1 > 4 × 100 m relay </td><td colspan=1 rowspan=1 > 44.13 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:24.71 </td></tr>
<tr> <td colspan=1 rowspan=2 > African Championships </td><td colspan=1 rowspan=2 > Marrakech, Morocco </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > 51.68 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:28.87 </td></tr>
<tr> <td colspan=1 rowspan=1 > Continental Cup </td><td colspan=1 rowspan=1 > Marrakech, Morocco </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:25.511 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=5 > 2015 </td><td colspan=1 rowspan=1 > IAAF World Relays </td><td colspan=1 rowspan=1 > Nassau, Bahamas </td><td colspan=1 rowspan=1 > 10th (h) </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:32.16 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > World Championships </td><td class="highlighted"  colspan=1 rowspan=2 > Beijing, China </td><td colspan=1 rowspan=1 > 9th (sf) </td><td class="highlighted"  colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > 50.76 </td></tr>
<tr> <td colspan=1 rowspan=1 > 5th </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:25.11 </td></tr>
<tr> <td colspan=1 rowspan=2 > African Games </td><td colspan=1 rowspan=2 > Brazzaville, Republic of the Congo </td><td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > 50.71 </td></tr>
<tr> <td colspan=1 rowspan=1 > 1st </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:27.12 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=3 > 2016 </td><td colspan=1 rowspan=2 > African Championships </td><td colspan=1 rowspan=2 > Durban, South Africa </td><td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > 52.33 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:29.94 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Olympic Games </td><td class="highlighted"  colspan=1 rowspan=1 > Rio de Janeiro, Brazil </td><td colspan=1 rowspan=1 > 23rd (sf) </td><td class="highlighted"  colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > 52.52 </td></tr>
<tr> <td colspan=1 rowspan=4 > 2017 </td><td colspan=1 rowspan=2 > IAAF World Relays </td><td colspan=1 rowspan=2 > Nassau, Bahamas </td><td colspan=1 rowspan=1 > 5th </td><td colspan=1 rowspan=1 > 4 × 200 m relay </td><td colspan=1 rowspan=1 > 1:33.08 </td></tr>
<tr> <td colspan=1 rowspan=1 > 7th </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:32.94 </td></tr>
<tr> <td colspan=1 rowspan=2 > World Championships </td><td colspan=1 rowspan=2 > London, United Kingdom </td><td colspan=1 rowspan=1 > 21st (sf) </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > 52.60 </td></tr>
<tr> <td colspan=1 rowspan=1 > 5th </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:26.72 </td></tr>
<tr> <td colspan=1 rowspan=4 > 2018 </td><td colspan=1 rowspan=2 > Commonwealth Games </td><td colspan=1 rowspan=2 > Gold Coast, Australia </td><td colspan=1 rowspan=1 > – </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > DQ </td></tr>
<tr> <td colspan=1 rowspan=1 > 2nd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:25.29 </td></tr>
<tr> <td colspan=1 rowspan=2 > African Championships </td><td colspan=1 rowspan=2 > Asaba, Nigeria </td><td colspan=1 rowspan=1 > 5th </td><td colspan=1 rowspan=1 > 400 m </td><td colspan=1 rowspan=1 > 52.34 </td></tr>
<tr> <td colspan=1 rowspan=1 > 3rd </td><td colspan=1 rowspan=1 > 4 × 400 m relay </td><td colspan=1 rowspan=1 > 3:31.17 </td></tr>
</table>
Question:
Where did Okon George compete in the 400 Metres event at? 
Answer:
Patience Okon George competed in the 400 metres event at the 2015 World Championships in Beijing, China and also at the 2016 Olympic Games in Rio.