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:
FFA Cup
Table title:
Finals
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Season </th><th colspan=1 rowspan=1 > Champion </th><th colspan=1 rowspan=1 > Score </th><th colspan=1 rowspan=1 > Runner-up </th><th colspan=1 rowspan=1 > Venue </th><th colspan=1 rowspan=1 > Attendance </th></tr>
<tr> <td colspan=1 rowspan=1 > 2014 </td><td colspan=1 rowspan=1 > Adelaide United </td><td colspan=1 rowspan=1 > 1–0 </td><td colspan=1 rowspan=1 > Perth Glory </td><td colspan=1 rowspan=1 > Coopers Stadium </td><td colspan=1 rowspan=1 > 16,142 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2015 </td><td colspan=1 rowspan=1 > Melbourne Victory </td><td colspan=1 rowspan=1 > 2–0 </td><td colspan=1 rowspan=1 > Perth Glory </td><td colspan=1 rowspan=1 > AAMI Park </td><td colspan=1 rowspan=1 > 15,098 </td></tr>
<tr> <td colspan=1 rowspan=1 > 2016 </td><td colspan=1 rowspan=1 > Melbourne City </td><td colspan=1 rowspan=1 > 1–0 </td><td colspan=1 rowspan=1 > Sydney FC </td><td colspan=1 rowspan=1 > AAMI Park </td><td colspan=1 rowspan=1 > 18,751 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2017 </td><td class="highlighted"  colspan=1 rowspan=1 > Sydney FC </td><td class="highlighted"  colspan=1 rowspan=1 > 2–1 (a.e.t.) </td><td class="highlighted"  colspan=1 rowspan=1 > Adelaide United </td><td colspan=1 rowspan=1 > Allianz Stadium </td><td colspan=1 rowspan=1 > 13,452 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 2018 </td><td class="highlighted"  colspan=1 rowspan=1 > Adelaide United </td><td class="highlighted"  colspan=1 rowspan=1 > 2–1 </td><td class="highlighted"  colspan=1 rowspan=1 > Sydney FC </td><td colspan=1 rowspan=1 > Coopers Stadium </td><td colspan=1 rowspan=1 > 14,448 </td></tr>
</table>
Question:
What games have the highest scoring in the FFA Cup's history and by which team(s)?
Answer:
Highest scoring: Sydney FC 2–1 (a.e.t.) Adelaide United (2017) and Adelaide United 2–1 Sydney FC (2018).