the wiki says you get that info if you pass the additional GetHistory=true query string to the gamefeed api. I never tried getting it though, and it doesn't seem to be recognized as a url parameter. So it needs to be part of the query parameters in itself.
In php should be something like:
// get game info from warlight
function API_GameFeed($value_id) {
global $email;
global $apitoken;
$url = 'http://warlight.net/API/GameFeed?GameID='.$value_id;
//echo $url.'<br><br>';
$arr = array('Email'=>$email,'APIToken'=>$apitoken,'GameHistory'=>'true');
$result = do_post_request($url, http_build_query($arr));
return json_decode($result, true);
}
Haven't tried it though.