diff --git a/homepage/participo/lib/participoLib/user.php b/homepage/participo/lib/participoLib/user.php
index 3badb82..a5476f0 100644
--- a/homepage/participo/lib/participoLib/user.php
+++ b/homepage/participo/lib/participoLib/user.php
@@ -159,13 +159,13 @@ class User
 	/** List of users kids */
 	private $kids = null;
 
-	public function kidIds(bool $forceLoading = false)
-	{
-		if (is_null($this->kidIds) || $forceLoading) {
-			$this->kidIds = self::getKidIds($id);
-		}
-		return self::$kidIds;
-	}
+	// public function kidIds(bool $forceLoading = false)
+	// {
+	// 	if (is_null($this->kidIds) || $forceLoading) {
+	// 		$this->kidIds = self::getKidIds($id);
+	// 	}
+	// 	return self::$kidIds;
+	// }
 
 	public function kids(bool $forceLoading = false)
 	{
@@ -175,26 +175,26 @@ class User
 		return $this->kids;
 	}
 
-	private static function getKidIds(int $id)
-	{
-		$response = dbConnector::query(
-			'SELECT * FROM `wkParticipo_Users` WHERE `' . $name . '` = :' . $name,
-			[$name => ['value' => $value, 'data_type' => self::$dbColumns[$name]]]
-		);
+// 	private static function getKidIds(int $id)
+// 	{
+// 		$response = dbConnector::query(
+// 			'SELECT * FROM `wkParticipo_Users` WHERE `' . $name . '` = :' . $name,
+// 			[$name => ['value' => $value, 'data_type' => self::$dbColumns[$name]]]
+// 		);
 
-		$query = <<<SQL
-SELECT *
-FROM `wkParticipo_Users`
-JOIN `vormundschaft`
-ON `wkParticipo_Users`.`id` = `vormundschaft`.`kidId`
-WHERE `vormundschaft`.`userId` = :userId;
-SQL;
-		$params = [
-			':userId' => ['value' => $userId, 'data_type' => PDO::PARAM_INT]
-		];
-		$response = dbConnector::query($query, $params);
-		return $response;
-	}
+// 		$query = <<<SQL
+// SELECT *
+// FROM `wkParticipo_Users`
+// JOIN `vormundschaft`
+// ON `wkParticipo_Users`.`id` = `vormundschaft`.`kidId`
+// WHERE `vormundschaft`.`userId` = :userId;
+// SQL;
+// 		$params = [
+// 			':userId' => ['value' => $userId, 'data_type' => PDO::PARAM_INT]
+// 		];
+// 		$response = dbConnector::query($query, $params);
+// 		return $response;
+// 	}
 
 	/** Export the User data into an associative array
 	 *
@@ -248,9 +248,12 @@ SQL;
 
 	public function getConfig()
 	{
-		return $this->$config;
+		return $this->config;
 	}
 
+	public function getDateOfBirth(){
+		return $this->dateOfBirth;
+	}
 	public function getStrBirthday(){
 		return $this->dateOfBirth->format("Y-m-d");
 	}
diff --git a/homepage/participo/pmelo.inc.php b/homepage/participo/pmelo.inc.php
index 1eb4ab4..5cfaeb6 100644
--- a/homepage/participo/pmelo.inc.php
+++ b/homepage/participo/pmelo.inc.php
@@ -2,9 +2,6 @@
 setlocale(LC_ALL, "de_DE@euro", "de_DE", "de", "ge");
 set_include_path(get_include_path() . PATH_SEPARATOR . "./lib/");
 
-// start a session
-session_start();
-
 // Configs
 require_once("config/participo.php");
 require_once $config['basePath'] . "/config/cwsvJudo.config.php";
@@ -19,6 +16,7 @@ $pmelo = new PmElo();
 class PmElo{
     function __construct()
     {
+        // $this->var_log($_SESSION, "session");
         // starting/continuing a session
         session_start();
 
@@ -27,15 +25,16 @@ class PmElo{
             $_SESSION['pmelo'] = [];
         }        
         // - data storage for id-s of chosen fighters
-        if(!array_key_exists('fighterIds', $_SESSION)){
-            $_SESSION['pmelo']['fighterIds'] = null; 
+        if(!array_key_exists('fighterIds', $_SESSION['pmelo'])){
+            $_SESSION['pmelo']['fighterIds'] = []; 
         }
 
         // check for action in post data
         if(array_key_exists('pmelo', $_POST)){
             if(array_key_exists('fighterIds', $_POST['pmelo'])){
-                $this->fighters = array_map('User::loadFromDb', $_POST['pmelo']['fighterIds']);
+                $_SESSION['pmelo']['fighterIds']=$_POST['pmelo']['fighterIds'];
             }
+            // $this->var_log($_SESSION, "session");
         }
 
         // load/recreate ranking data
@@ -47,10 +46,24 @@ class PmElo{
         // init members
         $this->trainees = self::getTrainees();
         $this->var_log(array_map(function($user){return $user->getFirstName();},$this->trainees), "trainees from db");
-        $this->rankings = self::createRankings();
+        $this->rankings = $this->createRankings();
+        $this->var_log(array_map(function($id){return $this->trainees[$id]->getFirstName();},$this->rankings), "current ranking");
+        $this->fighters = [];
+        foreach($_SESSION['pmelo']['fighterIds'] as $id){
+            $this->fighters[$id] = $this->trainees[$id];
+        };
+        $this->var_log(array_map(function($user){return $user->getFirstName();},$this->fighters), "fighters");
+        
 
+        // save the updated ranking
+        // @todo should be in destructor
+        self::saveRankings($this->rankings);
     }
 
+    function __destruct(){
+        // sad, the destructor is not allowed to use file_put_contents
+    }
+    
     // load all active trainees into a id=>User assoc array
     public static function getTrainees(){
         $traineeList = array_map('User::fromDbArray', User::dbSelectWithAttribute(4));
@@ -71,6 +84,7 @@ class PmElo{
         file_put_contents(self::$pmeloJson, json_encode($rankings));
     }
 
+    // simple logger to a logging buffer
     function var_log($variable, string $prefix=null, string $logChannel='info'){
         if(!in_array($logChannel, ['info', 'warning', 'error'])){
             $logChannel='info';
@@ -79,22 +93,27 @@ class PmElo{
         $this->log[$logChannel][]=$prefix.var_export($variable, true);
     }
 
+    // create the ranking for the current session (load saved ranking from file, remove old trainees, add new trainees)
     public function createRankings(){
         // load the last state of the ranking
         $loadedRanking = self::loadRankings();
-        $this->var_log($loadedRanking,"ranking");
+        $this->var_log(array_map(function($id){$user=$this->trainees[$id]; return $user->getFirstName();}, $loadedRanking), "loaded ranking");
 
         // check if the ranked trainees still are in training
+        // - the ranking with
         $cleanRanking = [];
+        // - trainees that aren't currently in the ranking for later inserting
         $toBeInsertedTrainees = $this->trainees;
-        foreach($loadedRanking as $rank=>$id){
+        foreach($loadedRanking as $id){
             if(array_key_exists($id, $this->trainees)){
+                // userId is still in training, so append it to the cleaned up ranking
                 $cleanRanking[] = $id;
-                // id of the not in the ranking, we have to insert
+                // trainees already in the ranking we won't have to insert manual
                 unset($toBeInsertedTrainees[$id]);
             }
         }
         
+        // get the ids of the to be inserted trainees sorted by the birthday
         $newTraineesIds = array_map(function($u){return $u->getId();},$toBeInsertedTrainees);
         usort(
             $newTraineesIds
@@ -102,16 +121,52 @@ class PmElo{
                 return $this->trainees[$lhs]->getStrBirthday() < $this->trainees[$rhs]->getStrBirthday() ? -1 : ($this->trainees[$lhs]->getStrBirthday() > $this->trainees[$rhs]->getStrBirthday() ? 1 : 0);
             }
         );
-        $this->var_log(array_map(function($id){return $this->trainees[$id]->getStrBirthday();},$newTraineesIds), "newTrainieesIdsByAge");
-        $this->var_log($newTraineesIds, "newTrainieesIdsByAge");
-        $this->var_log(array_map(function($user){return $user->getFirstName();}, $toBeInsertedTrainees), "newTrainees");
+        // $this->var_log(
+        //     array_map(
+        //         function($id){return $this->trainees[$id]->getStrBirthday()." ".$this->trainees[$id]->getFirstName();}
+        //         , $newTraineesIds
+        //     )
+        //     , "newTraineesBy B-Day"
+        // );
 
-        // insert new trainees in the ranking
-        // foreach($this->trainees as $trainee){
-        //     if(empty($this->rankings)){
-
-        //     }
-        // }
+        // now we do a mergesort (step) 
+        $updatedRanking = [];
+        $idxNewTrainees = count($newTraineesIds)-1;
+        $idxRanking = count($cleanRanking)-1;
+        // - while we can merge, we merge
+        while( ($idxRanking >= 0) && ($idxNewTrainees >= 0) ){
+            // $this->var_log( [$idxRanking.", ".$idxNewTrainees=>$updatedRanking] );
+            // $this->var_log(
+            //     [$this->trainees[$cleanRanking[$idxRanking]]->getStrBirthday(), $this->trainees[$newTraineesIds[$idxRanking]]->getStrBirthday()]
+            // );
+            if( 
+                $this->trainees[$cleanRanking[$idxRanking]]->getDateOfBirth()
+                > $this->trainees[$newTraineesIds[$idxNewTrainees]]->getDateOfBirth()
+            ){
+                // $this->var_log( $this->trainees[$cleanRanking[$idxRanking]]->getFirstName(), "merge ranking insert" );
+                array_unshift($updatedRanking, $cleanRanking[$idxRanking]);
+                $idxRanking-=1;
+            }else{
+                // $this->var_log( $this->trainees[$newTraineesIds[$idxNewTrainees]]->getFirstName(), "merge trainees insert" );
+                array_unshift($updatedRanking, $newTraineesIds[$idxNewTrainees]);
+                $idxNewTrainees-=1;
+            }
+        }
+        // $this->var_log(
+        //     ["idxR ".$idxRanking." idxNT ".$idxNewTrainees=>[$cleanRanking, $newTraineesIds]]
+        //     , "after merge"
+        // );
+        while( $idxRanking >= 0 ){
+            // $this->var_log( $this->trainees[$cleanRanking[$idxRanking]]->getFirstName(), "rest ranking insert" );
+            array_unshift($updatedRanking, $cleanRanking[$idxRanking]);
+            $idxRanking-=1;
+        }
+        while( $idxNewTrainees >= 0 ){
+            // $this->var_log( $this->trainees[$newTraineesIds[$idxNewTrainees]]->getFirstName(), "rest newTrainees insert" );
+            array_unshift($updatedRanking, $newTraineesIds[$idxNewTrainees]);
+            $idxNewTrainees-=1;
+        }
+        return $updatedRanking;
     }
 
     public $log = ['error'=>[], 'warning'=>[], 'info'=>[]];
@@ -120,5 +175,5 @@ class PmElo{
     // list of id-s in the order of the current ranking
     public $rankings = null;
 
-    static $pmeloJson="pmeloRanking.json";
+    static $pmeloJson="./pmeloRanking.json";
 }
\ No newline at end of file
diff --git a/homepage/participo/pmelo.php b/homepage/participo/pmelo.php
index 253fa36..da60dfb 100644
--- a/homepage/participo/pmelo.php
+++ b/homepage/participo/pmelo.php
@@ -59,9 +59,16 @@
 					<tr><th>Platz</th><th>Name</th><th>Aufstieg</th></tr>
 				</thead>
 				<tbody>
-					<?php if(!empty($pmelo->fighters)) foreach($pmelo->fighters as $fighter){
-						echo("<tr><td>#</td><td>".$fighter->getFirstname()." ".$fighter->getName()."</td><td>^</td></tr>".PHP_EOL);
-					}
+					<?php
+if(!empty($pmelo->fighters)){
+	foreach($pmelo->rankings as $rank=>$id){
+		if(array_key_exists($id, $pmelo->fighters)){
+			$fighter = $pmelo->fighters[$id];
+			// echo("<tr><td>".$rank."</td><td>".$fighter->getFirstName()."</td></tr>".PHP_EOL);
+			echo("<tr><td>".$rank."</td><td>".$fighter->getFirstName()." ".$fighter->getName()."</td><td>^</td></tr>".PHP_EOL);
+		}
+	}
+}
 					?>
 				</tbody>
 			</table>