Use turbo streams for the bout board instead of auto refreshing every 30 seconds.

app/views/tournaments/_up_matches_board.html.erb

@@ -0,0 +1,45 @@
+<div id="up_matches_board">
+  <h3>Upcoming Matches</h3>
+  <table class="table table-striped table-bordered table-condensed">
+    <thead>
+      <tr>
+        <th>Mat&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</th>
+        <th>On Mat</th>
+        <th>On Deck</th>
+        <th>In The Hole</th>
+        <th>Warm Up</th>
+      </tr>
+    </thead>
+
+    <tbody>
+      <% (local_assigns[:mats] || tournament.up_matches_mats).each do |m| %>
+        <%= render "tournaments/up_matches_mat_row", mat: m %>
+      <% end %>
+    </tbody>
+  </table>
+  <br>
+  <h3>Matches not assigned</h3>
+  <br>
+  <table class="table table-striped table-bordered table-condensed" id="matchList">
+    <thead>
+      <tr>
+        <th>Round</th>
+        <th>Bout Number</th>
+        <th>Weight Class</th>
+        <th>Matchup</th>
+      </tr>
+    </thead>
+
+    <tbody>
+      <% (local_assigns[:matches] || tournament.up_matches_unassigned_matches).each do |m| %>
+        <tr>
+          <td>Round <%= m.round %></td>
+          <td><%= m.bout_number %></td>
+          <td><%= m.weight_max %></td>
+          <td><%= m.w1_bracket_name %> vs. <%= m.w2_bracket_name %></td>
+        </tr>
+      <% end %>
+    </tbody>
+  </table>
+  <br>
+</div>