diff --git a/participation/views.py b/participation/views.py
index 183e706..2753d8d 100644
--- a/participation/views.py
+++ b/participation/views.py
@@ -742,7 +742,7 @@ class TournamentHarmonizeView(VolunteerMixin, DetailView):
             .format(tournament=tournament, round=context["round"])
 
         notes = dict()
-        for participation in self.object.participations.all():
+        for participation in self.object.participations.filter(valid=True).all():
             note = sum(pool.average(participation) for pool in context['pools'])
             tweak = sum(tweak.diff for tweak in participation.tweaks.filter(pool__in=context['pools']).all())
             notes[participation] = {'note': note, 'tweak': tweak}
@@ -762,13 +762,14 @@ class TournamentHarmonizeNoteView(VolunteerMixin, DetailView):
         if not reg.is_admin and (not reg.is_volunteer or tournament not in reg.organized_tournaments.all()):
             return self.handle_no_permission()
         if self.kwargs['round'] not in (1, 2) or self.kwargs['action'] not in ('add', 'remove') \
-                or self.kwargs['trigram'] not in [p.team.trigram for p in tournament.participations.all()]:
+                or self.kwargs['trigram'] not in [p.team.trigram
+                                                  for p in tournament.participations.filter(valid=True).all()]:
             raise Http404
         return super().dispatch(request, *args, **kwargs)
 
     def get(self, request, *args, **kwargs):
         tournament = self.get_object()
-        participation = tournament.participations.get(team__trigram=kwargs['trigram'])
+        participation = tournament.participations.filter(valid=True).get(team__trigram=kwargs['trigram'])
         pool = tournament.pools.get(round=kwargs['round'], participations=participation)
         tweak_qs = Tweak.objects.filter(participation=participation, pool=pool)
         old_diff = tweak_qs.first().diff if tweak_qs.exists() else 0