diff --git a/web/models/Tournament.model.php b/web/models/Tournament.model.php
index ae02888..8c6a6aa 100644
--- a/web/models/Tournament.model.php
+++ b/web/models/Tournament.model.php
@@ -11,7 +11,8 @@ class Tournament extends Model
         'referee' =>   ['type' => 'text'], 
         'text' => ['type' => 'text'],
         'url' =>   ['type' => 'text'], //if there is one
-        'logo' =>  ['type' => 'text', 'default' => 'https://pictshare.net/prrnrk.jpg']
+        'logo' =>  ['type' => 'text', 'default' => 'https://pictshare.net/prrnrk.jpg'],
+        'admins' => ['type'=> 'array', 'default'=>[]],
     );
 
     function isMyEvent($tournament = false)
@@ -27,4 +28,18 @@ class Tournament extends Model
             else return false;
         }
     }
+
+    function amIAdmin($tournament = false)
+    {
+        if ($tournament == false)
+            $tournament = $this->id;
+
+        if (!$this->exists($tournament))
+            return false;
+        else {
+            if (in_array($_SESSION['user']->id, $this->data['admins']))
+                return true;
+            else return false;
+        }
+    }
 }
diff --git a/web/pages/tournaments/controller.php b/web/pages/tournaments/controller.php
index 86080e9..c5a6d67 100644
--- a/web/pages/tournaments/controller.php
+++ b/web/pages/tournaments/controller.php
@@ -44,6 +44,8 @@ class Tournaments extends Page {
         
         $t->load($tid);
 
+        $this->set('admin',$t->amIAdmin($tid));
+        $this->set('joined',$t->isMyEvent($tid));
         $this->set('tournament_id',$tid);
         $this->set('tdata',$t->data);
         $this->set('template','event.html');
@@ -111,7 +113,12 @@ class Tournaments extends Page {
             {
                 $t = new Tournament();
                 if($id)
-                    $t->load($id);
+                {
+                    if(!in_array($_SESSION['user']->id, $t->data['admins']))
+                        return partial('error.html', ['errorTitle' => 'Error', 'errorMessage' => 'Du bist nicht berechtigt, dieses Turnier zu bearbeiten']);
+                    else
+                        $t->load($id);
+                }
 
                 $t->name = $name;
                 $t->date = $date;
@@ -119,6 +126,8 @@ class Tournaments extends Page {
                 $t->referee = $tournament_referee;
                 $t->text = $tournament_text;
                 $t->url = $tournament_url;
+                if(!in_array($_SESSION['user']->id, $t->data['admins']))
+                    $t->data['admins'][] = $_SESSION['user']->id;
                 if($newlogo)
                     $t->logo = $newlogo;
 
diff --git a/web/pages/tournaments/event.html b/web/pages/tournaments/event.html
index 3751aed..34728a0 100644
--- a/web/pages/tournaments/event.html
+++ b/web/pages/tournaments/event.html
@@ -18,11 +18,13 @@
                             <?php if($tdata['url']): ?><li>Webseite: <a href="<?= $tdata['url']; ?>"><?= escape($tdata['url']); ?></a></li> <?php endif; ?>
                         </ul>
                     
+                    <?php if($admin===true): ?>
                     <div class="d-flex justify-content-end">
                         <button type="button" class="btn btn-secondary" hx-get="/tournaments/edit/<?= $tournament_id; ?>" hx-target="#main">
                             <i class="fas fa-edit"></i>
                         </button>
                     </div>
+                    <?php endif; ?>
                 </div>
             </div>            
         </div>