diff --git a/app/services/tournament_sync_enqueue.rb b/app/services/tournament_sync_enqueue.rb
index f4bd3a8..056ab18 100644
--- a/app/services/tournament_sync_enqueue.rb
+++ b/app/services/tournament_sync_enqueue.rb
@@ -12,7 +12,7 @@ class TournamentSyncEnqueue
   def call
     return false unless tournament.sync_push_enabled?
 
-    payload = TournamentSnapshotBuilder.build(tournament)
+    payload = TournamentSnapshotBuilder.build(fresh_tournament)
     entry = TournamentSyncQueueEntry.find_or_initialize_by(tournament: tournament)
     entry.snapshot_json = JSON.dump(payload)
     entry.status = 'pending'
@@ -28,4 +28,8 @@ class TournamentSyncEnqueue
   private
 
   attr_reader :tournament
+
+  def fresh_tournament
+    Tournament.find(tournament.id)
+  end
 end
diff --git a/tasks.py b/tasks.py
index 40f3cc9..a6dfb9e 100644
--- a/tasks.py
+++ b/tasks.py
@@ -1330,6 +1330,74 @@ Tournament.order(:id).pluck(:id, :name, :read_only_mode, :sync_target_url, :sync
         print(output.rstrip())
 
 
+@task(name="docker-blackbox-follow-debug-compare")
+def docker_blackbox_follow_debug_compare(
+    c,
+    source_host_port=BLACKBOX_SOURCE_HOST_PORT,
+    follower_host_port=BLACKBOX_FOLLOWER_HOST_PORT,
+    app_image=PRODUCTION_TAG,
+    runner_image=TEST_TAG,
+    postgres_image=BLACKBOX_POSTGRES_IMAGE,
+):
+    """Compare latest leader tournament and follower read-only tournament via HTTP API."""
+    env = _follow_compose_env(
+        source_host_port=source_host_port,
+        follower_host_port=follower_host_port,
+        app_image=app_image,
+        runner_image=runner_image,
+        postgres_image=postgres_image,
+    )
+
+    script = """
+def signature(tournament)
+  {
+    id: tournament.id,
+    name: tournament.name,
+    public: tournament.public,
+    playoff_teams_amount: tournament.playoff_teams_amount,
+    instant_finalists_amount: tournament.instant_finalists_amount,
+    intermediate_round_participants_amount: tournament.intermediate_round_participants_amount,
+    sync_source_tournament_id: tournament.respond_to?(:sync_source_tournament_id) ? tournament.sync_source_tournament_id : nil,
+    team_names: tournament.teams.order(:id).pluck(:name),
+    stage_levels: tournament.stages.order(:level).map { |stage| [stage.level, stage.state, stage.groups.count, stage.matches.count] },
+    total_matches: tournament.matches.count,
+    decider_matches: tournament.matches.count(&:decider?)
+  }
+end
+
+tournament = if ENV['FOLLOW_COMPARE_MODE'] == 'leader'
+               Tournament.where.not(sync_target_url: nil).order(:id).last
+             else
+               Tournament.where(read_only_mode: true).order(:id).last
+             end
+
+puts signature(tournament).inspect
+"""
+
+    for mode, db_host, db_name in (("leader", "source-postgres", BLACKBOX_SOURCE_DB_NAME), ("follower", "follower-postgres", BLACKBOX_FOLLOWER_DB_NAME)):
+        _print_header(f"Compare {mode} tournament")
+        service_env = _production_env_for(db_host, db_name)
+        runner = _compose_run(
+            ["run", "--rm", "-e", f"POSTGRES_URL={service_env['POSTGRES_URL']}", "-e", f"POSTGRES_USERNAME={service_env['POSTGRES_USERNAME']}", "-e", f"POSTGRES_PASSWORD={service_env['POSTGRES_PASSWORD']}", "-e", f"SECRET_KEY_BASE={service_env['SECRET_KEY_BASE']}", "-e", f"MAILGUN_API_KEY={service_env['MAILGUN_API_KEY']}", "-e", f"MAILGUN_DOMAIN={service_env['MAILGUN_DOMAIN']}", "-e", f"RAILS_LOG_TO_STDOUT={service_env['RAILS_LOG_TO_STDOUT']}", "-e", f"RAILS_SERVE_STATIC_FILES={service_env['RAILS_SERVE_STATIC_FILES']}", "-e", "RAILS_ENV=production", "-e", f"FOLLOW_COMPARE_MODE={mode}", "e2e", "bundle", "exec", "rails", "runner", script],
+            env=env,
+            capture_output=True,
+            check=False,
+            project_name=BLACKBOX_FOLLOW_PROJECT,
+            compose_file=BLACKBOX_FOLLOW_COMPOSE_FILE,
+        )
+        if runner.stdout:
+            print(runner.stdout.rstrip())
+        if runner.stderr:
+            print(runner.stderr.rstrip())
+        if runner.returncode != 0:
+            raise subprocess.CalledProcessError(
+                runner.returncode,
+                runner.args,
+                output=runner.stdout,
+                stderr=runner.stderr,
+            )
+
+
 @task(name="docker-blackbox-follow-run")
 def docker_blackbox_follow_run(
     c,