diff --git a/ag/include/clan.inc.php b/ag/include/clan.inc.php
index c0096f6..90d3d31 100644
--- a/ag/include/clan.inc.php
+++ b/ag/include/clan.inc.php
@@ -89,10 +89,11 @@ function getMaximumMembers($clanid) {
 
 function getRequiredClanExp($level) {
 	//return pow(2, $level) * 10;
-	$level = $level + 1; 
+	$level = $level + 1;
 	// 12,5*(neuesLevel)^2-22,5*(neues Level)+10
-	$value = 12.5 * pow($level, 2) - 22.5 * $level + 10;
-	$value = beautifyNumericValue($value, 5);	
+	// 10-22,5*(neues Level)+12,5*(neuesLevel)^2
+	$value = 12.5 * pow($level, 2) - 22.5 * $level + 5;
+	$value = beautifyNumericValue($value, 10);
 	return $value;
 }
 
@@ -331,5 +332,22 @@ function sendClanNewsletter($user, $text){
 }
 
 
+function addClanExp($clan_id, $exp) {
+	$clan = getClan($clan_id, false);
+	if($clan['level'] == 18)
+		return;
+	$n_exp = $clan['exp'] + $exp;
+	$n_level = $clan['level'];
+	$req_exp = getRequiredClanExp($clan['level']);
+	if($req_exp <= $n_exp) {
+		$n_exp = 0;
+		$n_level++;
+	}
+	mysql_query('UPDATE clan SET exp = ' .$n_exp. ', level = ' .$n_level . ' WHERE id = ' .$clan_id . ' AND exp = ' .$clan['exp'] . ' AND level = ' .$clan['level']);
+	if(mysql_affected_rows() == 0) {
+		echo 'Fehler beim zuweisen der Clanexp, dadurch sind dem Clan mit der ID ' . $clan['level'] . ' ' .$exp . ' exp fl&omul;ten gegangen!! Neue exp w&auml;ren ' . $n_exp . ' bei level ' .$n_level;
+	}
+}
+
 
 ?>
diff --git a/ag/include/clan_fights.inc.php b/ag/include/clan_fights.inc.php
index 9d8e54b..1829b5f 100644
--- a/ag/include/clan_fights.inc.php
+++ b/ag/include/clan_fights.inc.php
@@ -29,6 +29,9 @@ defineIfNotDefined('DURATION_SURVIVAL_FIGHT', 15);
 defineIfNotDefined('ATTACK_SET_DAVY_BACK_FIGHT', 2);
 defineIfNotDefined('ATTACK_SET_SURVIVAL', 2);
 
+defineIfNotDefined('CLAN_EXP_FAKTOR_G', 1);
+
+
 $GLOBALS['clan_challenge_buffered_instances'] = array ();
 
 
@@ -972,6 +975,23 @@ function isAuthorizedClanfightCoordinator($clan_id, $user_id, $clan_fight_id = N
 	return true;
 }
 
+/**
+ * Calculates the clan exp for clan1
+ * @param array $clan1 the clan for whom the experience is calculated
+ * @param array $clan2 the other clan that was participating
+ * @param int $winner the id of the clan that has won
+ */
+function calculateClanExperience(array $clan1, array $clan2, $winner) {
+	$m = 1+pow(($clan2['level'] - $clan1['level'])/20,10);
+	$g = CLAN_EXP_FAKTOR_G;
+	if($clan1['id'] == $winner) {
+		$exp = (($clan1['level'] + $clan2['level'])/2)*$m*$g;
+	} else {
+		$exp = (($clan1['level'] + $clan2['level'])/3)*$m*$g;
+	}
+	return $exp;
+}
+
 /**
  * Returns how many chars were assigned by the leader for the given fight
  * @param int $clan_id