I’m not sure there’s enough information to figure this out.
$row_key = array(
'field_565eadf99195b' => $row['location_select'],
'field_565eae049195c' => $row['available_sports']
);
$row_id = add_row('field_565eadcd9195a', $row_key, $post_ID);
can you provide more code to show where the array $row
and the value of $post_ID
are being set?