diff --git a/src/ezgg_lan_manager/pages/ManageTournamentsPage.py b/src/ezgg_lan_manager/pages/ManageTournamentsPage.py
index b4dceb4..18a4c65 100644
--- a/src/ezgg_lan_manager/pages/ManageTournamentsPage.py
+++ b/src/ezgg_lan_manager/pages/ManageTournamentsPage.py
@@ -1,5 +1,6 @@
 import logging
 from datetime import datetime
+from functools import partial
 from typing import Optional
 
 from from_root import from_root
@@ -40,7 +41,11 @@ class ManageTournamentsPage(Component):
             return
         users = await self.session[UserService].get_all_users()
         try:
-            self.cancel_options = {next(filter(lambda u: u.user_id == p.id, users)).user_name: p for p in tournament.participants}
+            cancel_options = {next(filter(lambda u: u.user_id == p.id, users)).user_name: p for p in tournament.participants}
+            if cancel_options:
+                self.cancel_options = cancel_options
+            else:
+                self.cancel_options = {"": None}
         except StopIteration as e:
             logger.error(f"Error trying to find user for participant: {e}")
         self.tournament_id_selected_for_participant_removal = tournament_id
@@ -70,13 +75,12 @@ class ManageTournamentsPage(Component):
                     Text(tournament.name, style=TextStyle(fill=self.session.theme.background_color, font_size=0.8), justify="left", margin_right=1.5),
                     Text(f"{weekday_to_display_text(tournament.start_time.weekday())[:2]}.{tournament.start_time.strftime('%H:%M')} Uhr", style=TextStyle(fill=start_time_color, font_size=0.8), justify="left", margin_right=1),
                     Spacer(),
-                    Tooltip(anchor=IconButton("material/play_arrow", min_size=2, margin_right=0.5, on_press=lambda: self.on_start_pressed(tournament.id)), tip="Starten"),
-                    Tooltip(anchor=IconButton("material/cancel_schedule_send", min_size=2, margin_right=0.5, on_press=lambda: self.on_cancel_pressed(tournament.id)), tip="Absagen"),
-                    Tooltip(anchor=IconButton("material/person_cancel", min_size=2, on_press=lambda: self.on_remove_participant_pressed(tournament.id)), tip="Spieler entfernen"),
+                    Tooltip(anchor=IconButton("material/play_arrow", min_size=2, margin_right=0.5, on_press=partial(self.on_start_pressed, tournament.id)), tip="Starten"),
+                    Tooltip(anchor=IconButton("material/cancel_schedule_send", min_size=2, margin_right=0.5, on_press=partial(self.on_cancel_pressed, tournament.id)), tip="Absagen"),
+                    Tooltip(anchor=IconButton("material/person_cancel", min_size=2, on_press=partial(self.on_remove_participant_pressed, tournament.id)), tip="Spieler entfernen"),
                     margin=1
                 )
             )
-
         return Column(
             Popup(
                 anchor=MainViewContentBox(