diff --git a/app/channels/tournament_matches_channel.rb b/app/channels/tournament_matches_channel.rb
index c9abf0e..4e2e78f 100644
--- a/app/channels/tournament_matches_channel.rb
+++ b/app/channels/tournament_matches_channel.rb
@@ -5,7 +5,7 @@ class TournamentMatchesChannel < ApplicationCable::Channel
     tournament = Tournament.find(params[:tournament_id])
     state = params[:state].presence
 
-    stream_for TournamentMatchesBroadcast.stream_target(tournament, state: state)
-    transmit TournamentMatchesBroadcastPayload.build(tournament, state: state)
+    stream_for TournamentMatchesBroadcast.stream_target(tournament, state:)
+    transmit TournamentMatchesBroadcastPayload.build(tournament, state:)
   end
 end
diff --git a/app/services/tournament_matches_broadcast.rb b/app/services/tournament_matches_broadcast.rb
index d3c582e..792ebd3 100644
--- a/app/services/tournament_matches_broadcast.rb
+++ b/app/services/tournament_matches_broadcast.rb
@@ -10,8 +10,8 @@ class TournamentMatchesBroadcast
 
       STATES.each do |state|
         TournamentMatchesChannel.broadcast_to(
-          stream_target(tournament, state: state),
-          TournamentMatchesBroadcastPayload.build(tournament, state: state)
+          stream_target(tournament, state:),
+          TournamentMatchesBroadcastPayload.build(tournament, state:)
         )
       end
     end
diff --git a/app/services/tournament_matches_broadcast_payload.rb b/app/services/tournament_matches_broadcast_payload.rb
index 70df665..1e044ed 100644
--- a/app/services/tournament_matches_broadcast_payload.rb
+++ b/app/services/tournament_matches_broadcast_payload.rb
@@ -6,8 +6,8 @@ class TournamentMatchesBroadcastPayload
       {
         type: 'tournament_matches.updated',
         tournament_id: tournament.id,
-        state: state,
-        matches: TournamentMatchesPayload.build(tournament, state: state)
+        state:,
+        matches: TournamentMatchesPayload.build(tournament, state:)
       }
     end
   end
diff --git a/app/services/tournament_matches_payload.rb b/app/services/tournament_matches_payload.rb
index 8fe43ab..c3e679c 100644
--- a/app/services/tournament_matches_payload.rb
+++ b/app/services/tournament_matches_payload.rb
@@ -3,7 +3,7 @@
 class TournamentMatchesPayload
   class << self
     def build(tournament, state: nil)
-      serialized_matches(matches_for(tournament, state: state))
+      serialized_matches(matches_for(tournament, state:))
     end
 
     def matches_for(tournament, state: nil)
@@ -16,22 +16,33 @@ class TournamentMatchesPayload
     private
 
     def upcoming_matches_for(tournament)
+      upcoming_group_matches(tournament).presence || upcoming_playoff_matches(tournament)
+    end
+
+    def upcoming_group_matches(tournament)
       group_stage = tournament.stages.find { |stage| stage.level == -1 }
-      group_matches = group_stage&.groups&.map do |group|
+      return [] if group_stage.nil?
+
+      group_stage.groups.filter_map do |group|
         group.matches.select { |match| match.state == 'not_started' }.min_by(&:position)
-      end&.compact
-      return group_matches unless group_matches.blank?
-
-      next_level = nil
-      tournament.stages.reject { |stage| stage.level.nil? }.sort_by(&:level).reverse_each do |stage|
-        next unless stage.matches.any?
-        next unless stage.matches.all?(&:in_progress?)
-
-        next_level = stage.level - 1
-        break
       end
+    end
 
-      tournament.stages.find { |stage| stage.level == next_level }&.matches || []
+    def upcoming_playoff_matches(tournament)
+      active_stage = playoff_stages(tournament).reverse.find do |stage|
+        stage_with_running_matches?(stage)
+      end
+      return [] if active_stage.nil?
+
+      tournament.stages.find { |stage| stage.level == active_stage.level - 1 }&.matches || []
+    end
+
+    def stage_with_running_matches?(stage)
+      stage.matches.any? && stage.matches.all?(&:in_progress?)
+    end
+
+    def playoff_stages(tournament)
+      tournament.stages.reject { |stage| stage.level.nil? }.sort_by(&:level)
     end
 
     def serialized_matches(matches)
diff --git a/app/services/tournament_payload.rb b/app/services/tournament_payload.rb
index 7516e85..4e6cf2d 100644
--- a/app/services/tournament_payload.rb
+++ b/app/services/tournament_payload.rb
@@ -7,7 +7,7 @@ class TournamentPayload
         tournament,
         serializer: TournamentSerializer,
         include: '**',
-        scope: scope
+        scope:
       ).as_json
     end
   end
diff --git a/e2e/lib/action_cable_client.rb b/e2e/lib/action_cable_client.rb
index 04f4b22..bc8f21d 100644
--- a/e2e/lib/action_cable_client.rb
+++ b/e2e/lib/action_cable_client.rb
@@ -53,7 +53,7 @@ module TurniereE2E
     def subscribe_tournament!(tournament_id:)
       identifier = {
         channel: 'TournamentChannel',
-        tournament_id: tournament_id
+        tournament_id:
       }.to_json
 
       subscribe!(identifier:) do |message|
@@ -64,8 +64,8 @@ module TurniereE2E
     def subscribe_matches!(tournament_id:, state: nil)
       identifier = {
         channel: 'TournamentMatchesChannel',
-        tournament_id: tournament_id,
-        state: state
+        tournament_id:,
+        state:
       }.compact.to_json
 
       subscribe!(identifier:) do |message|
diff --git a/spec/e2e/http/tournament_follow_sync_live_websocket_spec.rb b/spec/e2e/http/tournament_follow_sync_live_websocket_spec.rb
index fa0f5e8..472ea29 100644
--- a/spec/e2e/http/tournament_follow_sync_live_websocket_spec.rb
+++ b/spec/e2e/http/tournament_follow_sync_live_websocket_spec.rb
@@ -26,16 +26,23 @@ RSpec.describe 'Tournament follower sync live websocket HTTP E2E' do
   let(:source_client) { login_client(base_url: source_base_url) }
 
   it 'broadcasts follower tournament and match updates after source match sync import' do
-    source = create_group_stage_tournament(client: source_client, base_url: source_base_url, name_prefix: 'Ws Live Source')
+    source = create_group_stage_tournament(
+      client: source_client,
+      base_url: source_base_url,
+      name_prefix: 'Ws Live Source'
+    )
     follower = create_follower_tournament(name_prefix: 'Ws Live Follower')
 
     configure_sync = source_client.patch("/tournaments/#{source.fetch(:id)}", body: {
-                                           sync_target_url: "#{follower_base_url}/tournaments/#{follower.fetch(:id)}/sync_state",
+                                           sync_target_url: follower_sync_url(follower),
                                            sync_auth_token: sync_token
                                          })
     expect(configure_sync[:status]).to eq(200)
 
-    follower = wait_for_follower_match_count!(follower.fetch(:id), count: source.fetch(:stages).first.fetch(:groups).flat_map { |group| group.fetch(:matches) }.count)
+    follower = wait_for_follower_match_count!(
+      follower.fetch(:id),
+      count: source_group_matches(source).count
+    )
     source_match = source.fetch(:stages).first.fetch(:groups).first.fetch(:matches).first
     follower_match_id = follower_match_for_source!(follower, source_match).fetch(:id)
 
@@ -48,22 +55,31 @@ RSpec.describe 'Tournament follower sync live websocket HTTP E2E' do
 
     play_match!(match_id: source_match.fetch(:id), first_score: 5, second_score: 2)
 
-    tournament_payload = wait_for_tournament_payload!(tournament_cable, tournament_id: follower.fetch(:id)) do |payload|
+    tournament_payload = wait_for_tournament_payload!(
+      tournament_cable,
+      tournament_id: follower.fetch(:id)
+    ) do |payload|
       payload.dig('tournament', 'stages').flat_map { |stage| stage.fetch('groups', []) }
              .flat_map { |group| group.fetch('matches', []) }
-             .any? { |candidate| candidate.fetch('id') == follower_match_id && candidate.fetch('state') == 'finished' }
+             .any? do |candidate|
+               candidate.fetch('id') == follower_match_id && candidate.fetch('state') == 'finished'
+             end
     end
     matches_payload = wait_for_matches_payload!(matches_cable, match_id: follower_match_id, state: 'finished')
 
-    expect(tournament_payload.fetch('tournament')).to eq(json_for_api(fetch_tournament(base_url: follower_base_url, tournament_id: follower.fetch(:id))))
-    expect(matches_payload.fetch('matches')).to eq(json_for_api(fetch_matches(base_url: follower_base_url, tournament_id: follower.fetch(:id))))
+    expect(tournament_payload.fetch('tournament')).to(
+      eq(json_for_api(fetch_tournament(base_url: follower_base_url, tournament_id: follower.fetch(:id))))
+    )
+    expect(matches_payload.fetch('matches')).to(
+      eq(json_for_api(fetch_matches(base_url: follower_base_url, tournament_id: follower.fetch(:id))))
+    )
   ensure
     tournament_cable&.close
     matches_cable&.close
   end
 
   def login_client(base_url:)
-    client = TurniereE2E::ApiClient.new(base_url: base_url)
+    client = TurniereE2E::ApiClient.new(base_url:)
     response = client.login!(email: owner_email, password: owner_password)
     expect(response[:status]).to eq(200)
     client
@@ -77,7 +93,7 @@ RSpec.describe 'Tournament follower sync live websocket HTTP E2E' do
                              group_stage: true,
                              playoff_teams_amount: 2,
                              teams: 2.times.flat_map do |group_index|
-                               2.times.map do |seed_index|
+                               Array.new(2) do |seed_index|
                                  {
                                    name: "#{name_prefix.tr(' ', '')}-G#{group_index + 1}-S#{seed_index + 1}",
                                    group: group_index
@@ -86,7 +102,7 @@ RSpec.describe 'Tournament follower sync live websocket HTTP E2E' do
                              end
                            })
     expect(response[:status]).to eq(201)
-    fetch_tournament(base_url: base_url, tournament_id: response.dig(:json, :id))
+    fetch_tournament(base_url:, tournament_id: response.dig(:json, :id))
   end
 
   def create_follower_tournament(name_prefix:)
@@ -111,7 +127,7 @@ RSpec.describe 'Tournament follower sync live websocket HTTP E2E' do
 
     ordered_scores = match_response.fetch(:json).fetch(:match_scores).sort_by { |score| score.fetch(:id) }
     [first_score, second_score].each_with_index do |points, index|
-      score_update = source_client.patch("/match_scores/#{ordered_scores[index].fetch(:id)}", body: { points: points })
+      score_update = source_client.patch("/match_scores/#{ordered_scores[index].fetch(:id)}", body: { points: })
       expect(score_update[:status]).to eq(200)
     end
 
@@ -120,61 +136,75 @@ RSpec.describe 'Tournament follower sync live websocket HTTP E2E' do
   end
 
   def wait_for_follower_match_count!(tournament_id, count:, timeout: 20)
-    deadline = Time.now + timeout
+    deadline = monotonic_time + timeout
     loop do
-      follower = fetch_tournament(base_url: follower_base_url, tournament_id: tournament_id)
+      follower = fetch_tournament(base_url: follower_base_url, tournament_id:)
       matches = follower.fetch(:stages).flat_map do |stage|
         stage.fetch(:groups, []).flat_map { |group| group.fetch(:matches, []) } + stage.fetch(:matches, [])
       end
       return follower if matches.count == count
 
-      raise "follower tournament not synced within #{timeout}s" if Time.now >= deadline
+      raise "follower tournament not synced within #{timeout}s" if monotonic_time >= deadline
 
       sleep 0.5
     end
   end
 
   def follower_match_for_source!(follower, source_match)
-    follower.fetch(:stages).flat_map do |stage|
+    follower_matches = follower.fetch(:stages).flat_map do |stage|
       stage.fetch(:groups, []).flat_map { |group| group.fetch(:matches, []) } + stage.fetch(:matches, [])
-    end.find do |candidate|
+    end
+
+    follower_matches.find do |candidate|
       candidate.fetch(:position) == source_match.fetch(:position)
     end || raise('follower match missing')
   end
 
   def fetch_tournament(base_url:, tournament_id:)
-    response = TurniereE2E::ApiClient.new(base_url: base_url).get("/tournaments/#{tournament_id}")
+    response = TurniereE2E::ApiClient.new(base_url:).get("/tournaments/#{tournament_id}")
     expect(response[:status]).to eq(200)
     response.fetch(:json)
   end
 
   def fetch_matches(base_url:, tournament_id:)
-    response = TurniereE2E::ApiClient.new(base_url: base_url).get("/tournaments/#{tournament_id}/matches")
+    response = TurniereE2E::ApiClient.new(base_url:).get("/tournaments/#{tournament_id}/matches")
     expect(response[:status]).to eq(200)
     response.fetch(:json)
   end
 
   def wait_for_tournament_payload!(cable_client, tournament_id:, timeout: 20)
-    deadline = Time.now + timeout
+    deadline = monotonic_time + timeout
     loop do
-      payload = cable_client.wait_for_tournament_payload!(timeout: [deadline - Time.now, 0.1].max)
+      payload = cable_client.wait_for_tournament_payload!(timeout: [deadline - monotonic_time, 0.1].max)
       return payload if payload.fetch('tournament_id') == tournament_id && yield(payload)
 
-      raise "follower tournament websocket payload not received within #{timeout}s" if Time.now >= deadline
+      raise "follower tournament websocket payload not received within #{timeout}s" if monotonic_time >= deadline
     end
   end
 
   def wait_for_matches_payload!(cable_client, match_id:, state:, timeout: 20)
-    deadline = Time.now + timeout
+    deadline = monotonic_time + timeout
     loop do
-      payload = cable_client.wait_for_matches_payload!(timeout: [deadline - Time.now, 0.1].max)
+      payload = cable_client.wait_for_matches_payload!(timeout: [deadline - monotonic_time, 0.1].max)
       match = payload.fetch('matches').find { |candidate| candidate.fetch('id') == match_id }
       return payload if match&.fetch('state') == state
 
-      raise "follower matches websocket payload not received within #{timeout}s" if Time.now >= deadline
+      raise "follower matches websocket payload not received within #{timeout}s" if monotonic_time >= deadline
     end
   end
 
+  def follower_sync_url(follower)
+    "#{follower_base_url}/tournaments/#{follower.fetch(:id)}/sync_state"
+  end
+
+  def source_group_matches(source)
+    source.fetch(:stages).first.fetch(:groups).flat_map { |group| group.fetch(:matches) }
+  end
+
+  def monotonic_time
+    Process.clock_gettime(Process::CLOCK_MONOTONIC)
+  end
+
   def json_for_api(value)
     JSON.parse(JSON.dump(value))
   end
diff --git a/spec/e2e/http/tournament_live_websocket_spec.rb b/spec/e2e/http/tournament_live_websocket_spec.rb
index 599aa7a..bb3fe2a 100644
--- a/spec/e2e/http/tournament_live_websocket_spec.rb
+++ b/spec/e2e/http/tournament_live_websocket_spec.rb
@@ -32,15 +32,24 @@ RSpec.describe 'Tournament live websocket HTTP E2E' do
     tournament_cable.subscribe_tournament!(tournament_id: tournament.fetch(:id))
     matches_cable.subscribe_matches!(tournament_id: tournament.fetch(:id))
 
-    expect(tournament_cable.wait_for_tournament_payload!.fetch('tournament')).to eq(json_for_api(fetch_tournament(tournament.fetch(:id))))
-    expect(matches_cable.wait_for_matches_payload!.fetch('matches')).to eq(json_for_api(fetch_matches(tournament.fetch(:id))))
+    expect(tournament_cable.wait_for_tournament_payload!.fetch('tournament')).to(
+      eq(json_for_api(fetch_tournament(tournament.fetch(:id))))
+    )
+    expect(matches_cable.wait_for_matches_payload!.fetch('matches')).to(
+      eq(json_for_api(fetch_matches(tournament.fetch(:id))))
+    )
 
     play_match!(match.fetch(:id), first_score: 3, second_score: 1)
 
-    tournament_payload = wait_for_tournament_payload!(tournament_cable, tournament_id: tournament.fetch(:id)) do |payload|
+    tournament_payload = wait_for_tournament_payload!(
+      tournament_cable,
+      tournament_id: tournament.fetch(:id)
+    ) do |payload|
       payload.dig('tournament', 'stages').flat_map { |stage| stage.fetch('groups', []) }
              .flat_map { |group| group.fetch('matches', []) }
-             .any? { |candidate| candidate.fetch('id') == match.fetch(:id) && candidate.fetch('state') == 'finished' }
+             .any? do |candidate|
+               candidate.fetch('id') == match.fetch(:id) && candidate.fetch('state') == 'finished'
+             end
     end
     expect(tournament_payload.fetch('tournament')).to eq(json_for_api(fetch_tournament(tournament.fetch(:id))))
 
@@ -67,7 +76,7 @@ RSpec.describe 'Tournament live websocket HTTP E2E' do
                              group_stage: true,
                              playoff_teams_amount: 2,
                              teams: 2.times.flat_map do |group_index|
-                               2.times.map do |seed_index|
+                               Array.new(2) do |seed_index|
                                  {
                                    name: "#{name_prefix.tr(' ', '')}-G#{group_index + 1}-S#{seed_index + 1}",
                                    group: group_index
@@ -88,7 +97,7 @@ RSpec.describe 'Tournament live websocket HTTP E2E' do
 
     ordered_scores = match_response.fetch(:json).fetch(:match_scores).sort_by { |score| score.fetch(:id) }
     [first_score, second_score].each_with_index do |points, index|
-      score_update = client.patch("/match_scores/#{ordered_scores[index].fetch(:id)}", body: { points: points })
+      score_update = client.patch("/match_scores/#{ordered_scores[index].fetch(:id)}", body: { points: })
       expect(score_update[:status]).to eq(200)
     end
 
@@ -109,26 +118,30 @@ RSpec.describe 'Tournament live websocket HTTP E2E' do
   end
 
   def wait_for_tournament_payload!(cable_client, tournament_id:, timeout: 20)
-    deadline = Time.now + timeout
+    deadline = monotonic_time + timeout
     loop do
-      payload = cable_client.wait_for_tournament_payload!(timeout: [deadline - Time.now, 0.1].max)
+      payload = cable_client.wait_for_tournament_payload!(timeout: [deadline - monotonic_time, 0.1].max)
       return payload if payload.fetch('tournament_id') == tournament_id && yield(payload)
 
-      raise "tournament websocket payload not received within #{timeout}s" if Time.now >= deadline
+      raise "tournament websocket payload not received within #{timeout}s" if monotonic_time >= deadline
     end
   end
 
   def wait_for_matches_payload!(cable_client, match_id:, state:, timeout: 20)
-    deadline = Time.now + timeout
+    deadline = monotonic_time + timeout
     loop do
-      payload = cable_client.wait_for_matches_payload!(timeout: [deadline - Time.now, 0.1].max)
+      payload = cable_client.wait_for_matches_payload!(timeout: [deadline - monotonic_time, 0.1].max)
       match = payload.fetch('matches').find { |candidate| candidate.fetch('id') == match_id }
       return payload if match&.fetch('state') == state
 
-      raise "matches websocket payload not received within #{timeout}s" if Time.now >= deadline
+      raise "matches websocket payload not received within #{timeout}s" if monotonic_time >= deadline
     end
   end
 
+  def monotonic_time
+    Process.clock_gettime(Process::CLOCK_MONOTONIC)
+  end
+
   def json_for_api(value)
     JSON.parse(JSON.dump(value))
   end