diff --git a/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/caching/LeaderboardDTOCache.java b/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/caching/LeaderboardDTOCache.java
index e949c417e22..29b814e4608 100755
--- a/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/caching/LeaderboardDTOCache.java
+++ b/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/caching/LeaderboardDTOCache.java
@@ -28,6 +28,7 @@ import com.sap.sailing.domain.leaderboard.ScoreCorrectionListener;
 import com.sap.sailing.domain.tracking.RaceChangeListener;
 import com.sap.sailing.domain.tracking.TrackedRegattaRegistry;
 import com.sap.sailing.util.impl.LockUtil;
+import com.sap.sailing.util.impl.ThreadFactoryWithPriority;
 
 /**
  * Caches the expensive to compute {@link LeaderboardDTO} results of a
@@ -70,7 +71,7 @@ public class LeaderboardDTOCache implements LeaderboardCache {
     private static final Executor computeLeadearboardByNameExecutor = new ThreadPoolExecutor(/* corePoolSize */ THREAD_POOL_SIZE,
             /* maximumPoolSize */ THREAD_POOL_SIZE,
             /* keepAliveTime */ 60, TimeUnit.SECONDS,
-            /* workQueue */ new LinkedBlockingQueue<Runnable>());
+            /* workQueue */ new LinkedBlockingQueue<Runnable>(), new ThreadFactoryWithPriority(Thread.NORM_PRIORITY-1));
 
     private final LeaderboardCacheManager leaderboardCacheManager;
     
diff --git a/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/impl/AbstractSimpleLeaderboardImpl.java b/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/impl/AbstractSimpleLeaderboardImpl.java
index 7ae80246d65..f4ae242db69 100755
--- a/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/impl/AbstractSimpleLeaderboardImpl.java
+++ b/java/com.sap.sailing.domain/src/com/sap/sailing/domain/leaderboard/impl/AbstractSimpleLeaderboardImpl.java
@@ -83,6 +83,7 @@ import com.sap.sailing.domain.tracking.TrackedRaceStatus;
 import com.sap.sailing.domain.tracking.TrackedRegattaRegistry;
 import com.sap.sailing.domain.tracking.Wind;
 import com.sap.sailing.util.impl.RaceColumnListeners;
+import com.sap.sailing.util.impl.ThreadFactoryWithPriority;
 
 /**
  * Base implementation for various types of leaderboards. The {@link RaceColumnListener} implementation forwards events
@@ -361,7 +362,7 @@ public abstract class AbstractSimpleLeaderboardImpl implements Leaderboard, Race
         executor = new ThreadPoolExecutor(/* corePoolSize */ THREAD_POOL_SIZE,
                 /* maximumPoolSize */ THREAD_POOL_SIZE,
                 /* keepAliveTime */ 60, TimeUnit.SECONDS,
-                /* workQueue */ new LinkedBlockingQueue<Runnable>());
+                /* workQueue */ new LinkedBlockingQueue<Runnable>(), new ThreadFactoryWithPriority(Thread.NORM_PRIORITY-1));
     }
 
     @Override
diff --git a/java/com.sap.sailing.domain/src/com/sap/sailing/util/SmartFutureCache.java b/java/com.sap.sailing.domain/src/com/sap/sailing/util/SmartFutureCache.java
index 8664280dedf..b20bd3c8809 100755
--- a/java/com.sap.sailing.domain/src/com/sap/sailing/util/SmartFutureCache.java
+++ b/java/com.sap.sailing.domain/src/com/sap/sailing/util/SmartFutureCache.java
@@ -22,6 +22,7 @@ import java.util.logging.Logger;
 import com.sap.sailing.util.SmartFutureCache.UpdateInterval;
 import com.sap.sailing.util.impl.LockUtil;
 import com.sap.sailing.util.impl.NamedReentrantReadWriteLock;
+import com.sap.sailing.util.impl.ThreadFactoryWithPriority;
 
 /**
  * A cache for which a background update can be triggered. Readers can decide whether they want to wait for any ongoing
@@ -99,7 +100,7 @@ public class SmartFutureCache<K, V, U extends UpdateInterval<U>> {
     private final static Executor recalculator = new ThreadPoolExecutor(/* corePoolSize */ THREAD_POOL_SIZE,
             /* maximumPoolSize */ THREAD_POOL_SIZE,
             /* keepAliveTime */ 60, TimeUnit.SECONDS,
-            /* workQueue */ new LinkedBlockingQueue<Runnable>());
+            /* workQueue */ new LinkedBlockingQueue<Runnable>(), new ThreadFactoryWithPriority(Thread.NORM_PRIORITY-1));
 
     private final CacheUpdater<K, V, U> cacheUpdateComputer;