diff --git a/src/java/com/threerings/parlor/game/server/GameManager.java b/src/java/com/threerings/parlor/game/server/GameManager.java
index 3b52a40f..94c0e716 100644
--- a/src/java/com/threerings/parlor/game/server/GameManager.java
+++ b/src/java/com/threerings/parlor/game/server/GameManager.java
@@ -783,13 +783,11 @@ public class GameManager extends PlaceManager
         _gameconfig = (GameConfig)_config;
 
         // start up our tick interval
-        _tickInterval = new Interval(_omgr) {
-            @Override
-            public void expired () {
+        _tickInterval = _omgr.newInterval(new Runnable() {
+            public void run () {
                 tick(System.currentTimeMillis());
             }
-        };
-        _tickInterval.schedule(TICK_DELAY, true);
+        }).schedule(TICK_DELAY, true);
 
         // configure our AIs
         for (int ii = 0; ii < _gameconfig.ais.length; ii++) {
@@ -1115,13 +1113,11 @@ public class GameManager extends PlaceManager
     protected void startAITicker ()
     {
         if (_aiTicker == null) {
-            _aiTicker = new Interval(_omgr) {
-                @Override
-                public void expired () {
+            _aiTicker = _omgr.newInterval(new Runnable() {
+                public void run () {
                     tickAIs();
                 }
-            };
-            _aiTicker.schedule(AI_TICK_DELAY, true);
+            }).schedule(AI_TICK_DELAY, true);
         }
     }
 
@@ -1272,6 +1268,7 @@ public class GameManager extends PlaceManager
     protected void gameWasCancelled ()
     {
         // nothing to do by default
+        stopAITicker();
     }
 
     /**
diff --git a/src/java/com/threerings/parlor/tourney/server/TourniesManager.java b/src/java/com/threerings/parlor/tourney/server/TourniesManager.java
index b76ba735..608cc480 100644
--- a/src/java/com/threerings/parlor/tourney/server/TourniesManager.java
+++ b/src/java/com/threerings/parlor/tourney/server/TourniesManager.java
@@ -30,7 +30,6 @@ import com.google.inject.Injector;
 import com.google.inject.Singleton;
 
 import com.samskivert.io.PersistenceException;
-import com.samskivert.util.Interval;
 import com.samskivert.util.Lifecycle;
 
 import com.threerings.presents.client.InvocationService;
@@ -48,7 +47,7 @@ import static com.threerings.parlor.Log.log;
  */
 @Singleton
 public abstract class TourniesManager
-    implements TourniesProvider, Lifecycle.Component
+    implements TourniesProvider, Lifecycle.InitComponent
 {
     @Inject public TourniesManager (Lifecycle cycle)
     {
@@ -60,18 +59,11 @@ public abstract class TourniesManager
     {
         loadTourneyConfigs();
 
-        _interval = new Interval(_omgr) {
-            @Override public void expired () {
+        _omgr.newInterval(new Runnable() {
+            public void run () {
                 updateTournies();
             }
-        };
-        _interval.schedule(getIntervalDelay(), true);
-    }
-
-    // from interface Lifecycle.Component
-    public void shutdown ()
-    {
-        _interval.cancel();
+        }).schedule(getIntervalDelay(), true);
     }
 
     // from interface TourniesService
@@ -139,9 +131,6 @@ public abstract class TourniesManager
      */
     protected abstract long getIntervalDelay ();
 
-    /** The interval which updates loaded tournies. */
-    protected Interval _interval;
-
     /** Count to provide a unique key to tournies as they're created. */
     protected int _tourneyCount;