diff --git a/match/migrations/0051_alter_ban_unique_together_alter_team_unique_together.py b/match/migrations/0051_alter_ban_unique_together_alter_team_unique_together.py
new file mode 100644
index 00000000..2a0a30c6
--- /dev/null
+++ b/match/migrations/0051_alter_ban_unique_together_alter_team_unique_together.py
@@ -0,0 +1,21 @@
+# Generated by Django 5.1.1 on 2024-10-12 20:33
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('match', '0050_remove_match_is_fully_imported_and_more_updated'),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name='ban',
+            unique_together={('team', 'pick_turn')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='team',
+            unique_together={('_id', 'match')},
+        ),
+    ]
diff --git a/match/models.py b/match/models.py
index 5ea42359..fdfc9640 100644
--- a/match/models.py
+++ b/match/models.py
@@ -875,6 +875,9 @@ class Team(models.Model):
     def __str__(self):
         return f"Team(match={self.match._id}, _id={self._id})"
 
+    class Meta:
+        unique_together = ("_id", "match")
+
 
 class Ban(models.Model):
     id: int | None
@@ -885,6 +888,9 @@ class Ban(models.Model):
     def __str__(self):
         return f"Ban(team={self.team._id}, match={self.team.match._id})"
 
+    class Meta:
+        unique_together = ("team", "pick_turn")
+
 
 class Bounty(BaseModel):
     monster_bounty: int = 0
diff --git a/match/tasks.py b/match/tasks.py
index b1612bce..08fc37b9 100644
--- a/match/tasks.py
+++ b/match/tasks.py
@@ -237,11 +237,21 @@ def multi_match_import(matches_json, region):
             unique_fields=["_id"],
             update_fields=["game_duration"],
         )
-        Participant.objects.bulk_create(participants)
-        Stats.objects.bulk_create(stats)
+        Participant.objects.bulk_create(
+            participants,
+            update_conflicts=True,
+            unique_fields=["_id", "match_id"],
+            update_fields=["champion_id"],
+        )
+        Stats.objects.bulk_create(stats, ignore_conflicts=True)
         Summoner.objects.bulk_create(summoners, ignore_conflicts=True)
-        Team.objects.bulk_create(teams)
-        Ban.objects.bulk_create(bans)
+        Team.objects.bulk_create(
+            teams,
+            update_conflicts=True,
+            unique_fields=["match_id", "_id"],
+            update_fields=["win"],
+        )
+        Ban.objects.bulk_create(bans, ignore_conflicts=True)
 
 
 @app.task(name="match.tasks.import_recent_matches")